Home » Public Forums » GMCnet » Removing FI-Tech
| Removing FI-Tech [message #349833] |
Sun, 03 November 2019 12:32  |
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Tom Lins
Messages: 372
Registered: February 2004
Location: St Augustine, FL
Karma: 1
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Senior Member |
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I am putting the carb back on the engine and I need to get the choke heater working,
both pipes are sheered off at the surface of the plate
Where does the stove get the filtered air from?
Is it the top of the back of the Carb where there is a fitting to attach a hose the would go to the input of the choke stove on the intake manifold?
Another question is can you use copper tube to go from the choke stove to the choke?
Has anyone else tried that or would that be a problem?
It is much easier to bend and not kink.
Or Does anyone have a good part number for the tube assembly?
Tom Lins
St Augustine, FL
77 GM Rear Twin, Dry Bath, 455, Aluminum Radiator Quad-Bag Suspension Solar Panel
Manuals on DVD
YOUTUBE Channel: GMC Dealer Training Tapes
http://www.bdub.net/tomlins/
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| Re: [GMCnet] Removing FI-Tech [message #349837 is a reply to message #349833] |
Sun, 03 November 2019 15:36  |
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ljdavick
Messages: 3548
Registered: March 2007
Location: Fremont, CA
Karma: -3
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How about an electric choke release? If the crossovers are blocked it’s necessary
Larry Davick
1976 Palm Beach
Fremont, Ca
> On Nov 3, 2019, at 10:33 AM, Tom Lins via Gmclist wrote:
>
> I am putting the carb back on the engine and I need to get the choke heater working,
> both pipes are sheered off at the surface of the plate
> Where does the stove get the filtered air from?
> Is it the top of the back of the Carb where there is a fitting to attach a hose the would go to the input of the choke stove on the intake manifold?
>
> Another question is can you use copper tube to go from the choke stove to the choke?
> Has anyone else tried that or would that be a problem?
> It is much easier to bend and not kink.
>
> Or Does anyone have a good part number for the tube assembly?
>
>
> --
> Tom Lins
> St Augustine, FL
> 77 GM Rear Twin, Dry Bath, 455, FI-Tech EFI, Aluminum Radiator Quad-Bag Suspension Solar Panel
> Manuals on DVD
> GMC Dealer Training Tapes
> http://www.bdub.net/tomlins/
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
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Larry Davick
A Mystery Machine
1976(ish) Palm Beach
Fremont, Ca
Howell EFI + EBL + Electronic Dizzy
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| Re: Removing FI-Tech [message #349839 is a reply to message #349833] |
Sun, 03 November 2019 16:29 |
6cuda6
Messages: 975
Registered: June 2019
Karma: -6
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Electric choke would be your easiest bet.
Question, why are you removing the Fitech?
Rich Mondor,
Brockville, ON
77 Hughes 2600
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| Re: Removing FI-Tech [message #349845 is a reply to message #349844] |
Sun, 03 November 2019 19:40 |
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Tom Lins
Messages: 372
Registered: February 2004
Location: St Augustine, FL
Karma: 1
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Tom Lins wrote on Sun, 03 November 2019 20:376cuda6 wrote on Sun, 03 November 2019 17:29Electric choke would be your easiest bet.
Question, why are you removing the Fitech?
This is the second unit that was on the engine, the first one lasted about 800 miles and then over about 65 miles slowly lost power until I could not go more than 45mph with my foot to the floor.
Got it towed to Sirum's and Jeff sent the unit back to have it repaired (bad left front injector) They sent it back 3.5 weeks later after replacing the computer. Jeff had to get them to send him
a couple new injectors and installed them. He was not happy with how it was acting and convinced them to replace the entire unit with a new one. He installed it and road tested it for about 100 miles
We drove the 216 miles from our house and started to drive home. About 16 miles from home as we were passing the last exit on I-95 before our house it started losing power and popping when I stepped on the gas
Luckly there was a Flying J at the end of the ramp and I could roll into there. Had to get it towed to my house since the limit on towing for my roadside assistance is 100 miles.
Spoke to FI-Tech a bunch of times and replaced the O2 sensor and the fuel pump and I am still having issues.
So I am switching back to the Carb. Maybe I will someday try a Sniper once I see they have proved themselves.
I should probably add that both units were installed at Sirum's not by me.
Tom Lins
St Augustine, FL
77 GM Rear Twin, Dry Bath, 455, Aluminum Radiator Quad-Bag Suspension Solar Panel
Manuals on DVD
YOUTUBE Channel: GMC Dealer Training Tapes
http://www.bdub.net/tomlins/
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| Re: Removing FI-Tech [message #349848 is a reply to message #349845] |
Sun, 03 November 2019 19:55 |
6cuda6
Messages: 975
Registered: June 2019
Karma: -6
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Tom Lins wrote on Sun, 03 November 2019 20:40Tom Lins wrote on Sun, 03 November 2019 20:376cuda6 wrote on Sun, 03 November 2019 17:29Electric choke would be your easiest bet.
Question, why are you removing the Fitech?
This is the second unit that was on the engine, the first one lasted about 800 miles and then over about 65 miles slowly lost power until I could not go more than 45mph with my foot to the floor.
Got it towed to Sirum's and Jeff sent the unit back to have it repaired (bad left front injector) They sent it back 3.5 weeks later after replacing the computer. Jeff had to get them to send him
a couple new injectors and installed them. He was not happy with how it was acting and convinced them to replace the entire unit with a new one. He installed it and road tested it for about 100 miles
We drove the 216 miles from our house and started to drive home. About 16 miles from home as we were passing the last exit on I-95 before our house it started losing power and popping when I stepped on the gas
Luckly there was a Flying J at the end of the ramp and I could roll into there. Had to get it towed to my house since the limit on towing for my roadside assistance is 100 miles.
Spoke to FI-Tech a bunch of times and replaced the O2 sensor and the fuel pump and I am still having issues.
So I am switching back to the Carb. Maybe I will someday try a Sniper once I see they have proved themselves.
I should probably add that both units were installed at Sirum's not by me.
Very interesting.
Rich Mondor,
Brockville, ON
77 Hughes 2600
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| Re: [GMCnet] Removing FI-Tech [message #349851 is a reply to message #349848] |
Sun, 03 November 2019 22:35 |
sgltrac
Messages: 2797
Registered: April 2011
Karma: 1
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I don’t recall similar issues with the Howell system with ebl. Are those
still trouble free as I remember?
Sully
Bellevue wa
On Sun, Nov 3, 2019 at 5:56 PM tonka6cuda6--- via Gmclist <
gmclist@list.gmcnet.org> wrote:
> Tom Lins wrote on Sun, 03 November 2019 20:40
>> Tom Lins wrote on Sun, 03 November 2019 20:37
>>> 6cuda6 wrote on Sun, 03 November 2019 17:29
>>>> Electric choke would be your easiest bet.
>>>>
>>>> Question, why are you removing the Fitech?
>>>
>>> This is the second unit that was on the engine, the first one lasted
> about 800 miles and then over about 65 miles slowly lost power until I
>>> could not go more than 45mph with my foot to the floor.
>>> Got it towed to Sirum's and Jeff sent the unit back to have it
> repaired (bad left front injector) They sent it back 3.5 weeks later after
>>> replacing the computer. Jeff had to get them to send him
>>> a couple new injectors and installed them. He was not happy with how
> it was acting and convinced them to replace the entire unit with a new
>>> one. He installed it and road tested it for about 100 miles
>>> We drove the 216 miles from our house and started to drive home. About
> 16 miles from home as we were passing the last exit on I-95 before our
>>> house it started losing power and popping when I stepped on the gas
>>> Luckly there was a Flying J at the end of the ramp and I could roll
> into there. Had to get it towed to my house since the limit on towing for
>>> my roadside assistance is 100 miles.
>>> Spoke to FI-Tech a bunch of times and replaced the O2 sensor and the
> fuel pump and I am still having issues.
>>>
>>> So I am switching back to the Carb. Maybe I will someday try a Sniper
> once I see they have proved themselves.
>>
>>
>>
>> I should probably add that both units were installed at Sirum's not by
> me.
>
> Very interesting.
>
> --
> Rich Mondor,
>
> Brockville, ON
>
> 77 Hughes 2600
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
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Sully
77 Royale basket case.
Future motorhome land speed record holder(bucket list)
Seattle, Wa.
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| Re: [GMCnet] Removing FI-Tech [message #349852 is a reply to message #349851] |
Sun, 03 November 2019 22:47 |
James Hupy
Messages: 6806
Registered: May 2010
Karma: -62
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Senior Member |
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The Howell system, with the exception of the Holley throttle body, are as
reliable as a GM vehicle of the same era as the computer. The Holley
injectors are known to be problematical in that they come loose. Could be
an assembly problem, or a defect. Don't know. But when the GM throttle body
is used, they are very reliable. In my personal opinion, yours may vary.
Jim Hupy
Salem, Oregon
On Sun, Nov 3, 2019, 8:36 PM Todd Sullivan via Gmclist <
gmclist@list.gmcnet.org> wrote:
> I don’t recall similar issues with the Howell system with ebl. Are those
> still trouble free as I remember?
>
> Sully
> Bellevue wa
>
> On Sun, Nov 3, 2019 at 5:56 PM tonka6cuda6--- via Gmclist gmclist@list.gmcnet.org> wrote:
>
>> Tom Lins wrote on Sun, 03 November 2019 20:40
>>> Tom Lins wrote on Sun, 03 November 2019 20:37
>>>> 6cuda6 wrote on Sun, 03 November 2019 17:29
>>>> > Electric choke would be your easiest bet.
>>>> >
>>>> > Question, why are you removing the Fitech?
>>>>
>>>> This is the second unit that was on the engine, the first one lasted
>> about 800 miles and then over about 65 miles slowly lost power until I
>>>> could not go more than 45mph with my foot to the floor.
>>>> Got it towed to Sirum's and Jeff sent the unit back to have it
>> repaired (bad left front injector) They sent it back 3.5 weeks later
> after
>>>> replacing the computer. Jeff had to get them to send him
>>>> a couple new injectors and installed them. He was not happy with how
>> it was acting and convinced them to replace the entire unit with a new
>>>> one. He installed it and road tested it for about 100 miles
>>>> We drove the 216 miles from our house and started to drive home.
> About
>> 16 miles from home as we were passing the last exit on I-95 before our
>>>> house it started losing power and popping when I stepped on the gas
>>>> Luckly there was a Flying J at the end of the ramp and I could roll
>> into there. Had to get it towed to my house since the limit on towing for
>>>> my roadside assistance is 100 miles.
>>>> Spoke to FI-Tech a bunch of times and replaced the O2 sensor and the
>> fuel pump and I am still having issues.
>>>>
>>>> So I am switching back to the Carb. Maybe I will someday try a
> Sniper
>> once I see they have proved themselves.
>>>
>>>
>>>
>>> I should probably add that both units were installed at Sirum's not by
>> me.
>>
>> Very interesting.
>>
>> --
>> Rich Mondor,
>>
>> Brockville, ON
>>
>> 77 Hughes 2600
>>
>> _______________________________________________
>> GMCnet mailing list
>> Unsubscribe or Change List Options:
>> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>>
> _______________________________________________
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> Unsubscribe or Change List Options:
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>
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| Re: [GMCnet] Removing FI-Tech [message #349853 is a reply to message #349852] |
Sun, 03 November 2019 22:56 |
sgltrac
Messages: 2797
Registered: April 2011
Karma: 1
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Senior Member |
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Must be a big price point then with the Fitech? Sorry to have missed the
rest of the conversation.
Sully
On Sun, Nov 3, 2019 at 8:44 PM James Hupy via Gmclist <
gmclist@list.gmcnet.org> wrote:
> The Howell system, with the exception of the Holley throttle body, are as
> reliable as a GM vehicle of the same era as the computer. The Holley
> injectors are known to be problematical in that they come loose. Could be
> an assembly problem, or a defect. Don't know. But when the GM throttle body
> is used, they are very reliable. In my personal opinion, yours may vary.
> Jim Hupy
> Salem, Oregon
>
>
> On Sun, Nov 3, 2019, 8:36 PM Todd Sullivan via Gmclist gmclist@list.gmcnet.org> wrote:
>
>> I don’t recall similar issues with the Howell system with ebl. Are those
>> still trouble free as I remember?
>>
>> Sully
>> Bellevue wa
>>
>> On Sun, Nov 3, 2019 at 5:56 PM tonka6cuda6--- via Gmclist > gmclist@list.gmcnet.org> wrote:
>>
>>> Tom Lins wrote on Sun, 03 November 2019 20:40
>>>> Tom Lins wrote on Sun, 03 November 2019 20:37
>>>> > 6cuda6 wrote on Sun, 03 November 2019 17:29
>>>> > > Electric choke would be your easiest bet.
>>>> > >
>>>> > > Question, why are you removing the Fitech?
>>>> >
>>>> > This is the second unit that was on the engine, the first one
> lasted
>>> about 800 miles and then over about 65 miles slowly lost power until I
>>>> > could not go more than 45mph with my foot to the floor.
>>>> > Got it towed to Sirum's and Jeff sent the unit back to have it
>>> repaired (bad left front injector) They sent it back 3.5 weeks later
>> after
>>>> > replacing the computer. Jeff had to get them to send him
>>>> > a couple new injectors and installed them. He was not happy with
> how
>>> it was acting and convinced them to replace the entire unit with a new
>>>> > one. He installed it and road tested it for about 100 miles
>>>> > We drove the 216 miles from our house and started to drive home.
>> About
>>> 16 miles from home as we were passing the last exit on I-95 before our
>>>> > house it started losing power and popping when I stepped on the gas
>>>> > Luckly there was a Flying J at the end of the ramp and I could roll
>>> into there. Had to get it towed to my house since the limit on towing
> for
>>>> > my roadside assistance is 100 miles.
>>>> > Spoke to FI-Tech a bunch of times and replaced the O2 sensor and
> the
>>> fuel pump and I am still having issues.
>>>> >
>>>> > So I am switching back to the Carb. Maybe I will someday try a
>> Sniper
>>> once I see they have proved themselves.
>>>>
>>>>
>>>>
>>>> I should probably add that both units were installed at Sirum's not
> by
>>> me.
>>>
>>> Very interesting.
>>>
>>> --
>>> Rich Mondor,
>>>
>>> Brockville, ON
>>>
>>> 77 Hughes 2600
>>>
>>> _______________________________________________
>>> GMCnet mailing list
>>> Unsubscribe or Change List Options:
>>> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>>>
>> _______________________________________________
>> GMCnet mailing list
>> Unsubscribe or Change List Options:
>> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>>
> _______________________________________________
> GMCnet mailing list
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Sully
77 Royale basket case.
Future motorhome land speed record holder(bucket list)
Seattle, Wa.
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| Re: Removing FI-Tech [message #349860 is a reply to message #349833] |
Mon, 04 November 2019 07:25 |
jhbridges
Messages: 8412
Registered: May 2011
Location: Braselton ga
Karma: -74
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Senior Member |
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The MSD Atomic injection on my coach seems to work well with the new engine... it was prone to bog at low RPM throttle increases. I ascribed this to the rather extreme cam in that engine. As time goes on we'll see. The PO was considering returning to the carb. I hope to have it sorted on the new motor, it did well at test drive the other day. It doesn't have the ignition control add-on MSD sells.
=--johnny
Foolish Carriage, 76 26' Eleganza(?) with beaucoup mods and add - ons.
Braselton, Ga.
I forgive them all, save those who hurt the dogs. They must answer to me in hell
[Updated on: Mon, 04 November 2019 07:27] Report message to a moderator |
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| Re: [GMCnet] Removing FI-Tech [message #349861 is a reply to message #349852] |
Mon, 04 November 2019 07:45 |
rjw
Messages: 697
Registered: September 2005
Karma: 4
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Senior Member |
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James Hupy wrote on Sun, 03 November 2019 23:47The Howell system, with the exception of the Holley throttle body, are as
reliable as a GM vehicle of the same era as the computer. The Holley
injectors are known to be problematical in that they come loose. Could be
an assembly problem, or a defect. Don't know. But when the GM throttle body
is used, they are very reliable. In my personal opinion, yours may vary.
Jim Hupy
Salem, Oregon
I've had my Howell with EBL in for 12 years now and over 65,000 miles. It is hard to believe that its been that long (time keeps going by faster and faster as I get older 
I have the Holly throttle body with Holly injectors which is what was in the kit that I installed. Even though I installed the system myself, I have had no issues. I have had issues with the computer controlled distributor that were caused by a faulty wiring harness, not related to EFI.
It starts up as easily as a new car. I would never go back to a carburetor.
Richard
76 Palm Beach
SE Michigan
www.PalmBeachGMC.com
Roller Cam 455, TBI+EBL, 3.42 FD, 4 Bag, Macerator, Lenzi (brakes, vacuum system, front end stuff), Manny Tranny, vacuum step, Tankless + OEM water heaters.
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| Re: Removing FI-Tech [message #349862 is a reply to message #349833] |
Mon, 04 November 2019 08:11 |
JohnL455
Messages: 4447
Registered: October 2006
Location: Woodstock, IL
Karma: 12
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Senior Member |
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Yes clean air to choke is top center rear Qjet port. I believe both heat pipes are listed for sale at Applied.
John Lebetski
Woodstock, IL
77 Eleganza II
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| Re: [GMCnet] Removing FI-Tech [message #349866 is a reply to message #349863] |
Mon, 04 November 2019 13:45 |
jimk
Messages: 6734
Registered: July 2006
Location: Belmont, CA
Karma: 9
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Senior Member |
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WE sell ALL the throttle body units.
The Howell base unit with the EBL ECM has been the most trouble free unit
of ALL, next to the MSD.
We have warranted numerous Fi Tec units in the last several month.
The Howell Based unit with the EBL is the most trouble free and gets better
fuel economy.
Also there are lot of GMC people that have them and know how to analyze
issues when a Rat eats a wire or a connector falls off. Also 95% or the
parts are available at part stores as they are same as original GM parts .
The EBL ECM out performs ALL the Throttle bodies as they do not have the
full ignition control of the EBL.
On Mon, Nov 4, 2019 at 6:58 AM Larry Davick via Gmclist <
gmclist@list.gmcnet.org> wrote:
> Electric Choke
>
>
> Heat stove tubes
>
>
>
> Jim has what you need.
>
> Larry Davick
> A Mystery Machine
> 1976(ish) Palm Beach
> Fremont, CA
> Howell EFI + EBL + Electronic Distributor
>
>> On Nov 4, 2019, at 6:11 AM, John R. Lebetski via Gmclist gmclist@list.gmcnet.org> wrote:
>>
>> Yes clean air to choke is top center rear Qjet port. I believe both heat
> pipes are listed for sale at Applied.
>> --
>> John Lebetski
>> Woodstock, IL
>> 77 Eleganza II
>>
>>
>> _______________________________________________
>> GMCnet mailing list
>> Unsubscribe or Change List Options:
>> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>
> _______________________________________________
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>
--
Jim Kanomata
Applied/GMC, Newark,CA
jimk@appliedairfilters.com
http://www.appliedgmcrvparts.com
1-800-752-7502
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Jim Kanomata
Applied/GMC
jimk@appliedairfilters.com
www.appliedgmc.com
1-800-752-7502
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| Re: [GMCnet] Removing FI-Tech [message #350005 is a reply to message #350002] |
Sun, 10 November 2019 11:31 |
6cuda6
Messages: 975
Registered: June 2019
Karma: -6
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Senior Member |
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Tom Lins wrote on Sun, 10 November 2019 12:18Ok I have most of the carb connections back in place but I need to reconnect the vacuum advance to the distributor.
The vacuum Christmas tree is no longer there and was replaced by the temp sensor for the FI-Tech.
Since 99% of the time the Christmas tree directs ported vacuum to the distributor which of the two connectors
on the front of the carb did the Christmas tree connect to.
My other question is what are the two vacuum ports on the front of the Carb for?
Picture of the front of the carb here
http://www.gmcmhphotos.com/photos/misc/p66819-carb-ports-sm.html
Without looking at mine i cant tell you exactly....but if no one replies before tomorrow afternoon ill go look at mine and let you know.
Rich Mondor,
Brockville, ON
77 Hughes 2600
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