| New GMC Owner [message #334276] |
Sat, 30 June 2018 18:43  |
BoboBob13
Messages: 49
Registered: June 2018
Location: Las Vegas
Karma: -3
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Well we went and did it a few weeks ago and bought a 1976 Eleganza II from a shop in New Mexico and drove in home to
Las Vegas. Had a bit of trouble with the fuel system but we did get it home in the end.
My background is that I am retired and a former Master & L1 ASE Tech but that was 15 years in the past. Have worked
on a many MH in the past including a couple of GMC's. Always loved the GMC's for their look and the engineering
behind them. I started out in the '70 as a mechanic so the systems are not foreign to me.
The PO had bought the coach in Colorado and driving it back home blew up the engine in New Mexico. He got it into a
shop the works on MHs and they pulled the engine. Upon getting the engine out it was determined the it needed a trans
and a front end also. The PO could not afford the repairs so he gave the shop the coach. Over the next year or so they
used the coach as fill in work and built an mild performance engine for it, replace the trans with a unit for Manny and
did the 1-ton upgrade from Manny on the front end. Along with that they replace air bags and shocks in the rear, pulled
and cleaned the fuel tanks and replumbed the fuel lines and added an electric pump. Along with the engine they installed
all new ignition parts, alt & starter, AC comp, rebuilt carb, water pump, belts and hoses. Also a new air compressor and
tank for the air ride system. After another year or so they decided to sell for lack of use.
This is where we come in. After getting it back to Las Vegas and finding a place to park it some work has begun. Working with
the distributor to get the advance more inline for what DP uses I put in a new weight and spring kit for mechanical advance and
vacuum advance with new vacuum cut-in and cut-out points more suited for a MH with an RV cam in it. That was the easy part and
helped a lot in the was the engine runs.
Next in line was the carb. Knowing after many years of experience that most rebuilt carbs from parts houses are junk I pulled
the carb off and went to work. NO CARB NUMBER  I could tell it was a newer carb because of the idle mixture screws and
the torx screws used on the body but I had never seen a carb like this one. Turns out it is from a 85-86 chevy truck and has a
dual capacity accelerator pump built into the carb body. New one on me. Waiting for some more parts from the carb shop so I
can get into the jet and rods and set it up the best I can without knowing what came in this carb originally and with the help
of an AEM air/fuel gauge I am installing. I know the specs of the original carb so I will use that as a starting point along
with the help of some good books on the Q-Jet. Having not touched anything like this for over 15 years I'm having a bit of fun.
My next step and what I would like some help with is the wheels. Right now it has 16.5 stock wheels(don't know if the are radial
rated or not) with a new set of Firestone HT tires and a 4 year old date code on the. Switching over to 16 inch tires and rims
I have already bought my tires. 7 Toyo Open Country H/T LT225/75R-16. They are E rated 115/112 S rateed tires. Paid $110 ea
delivered to the condo here. Goodyear here said they would mount and balance for $30 a tire with lifetime on the rotation and
balance.
I am looking at using a Ion Alloy Dually 167 Polished Wheel (16x6/8x165.1mm) all they way around. My question is has anyone used
these wheels on a GMC? What lug nuts did you use if you did? I know about the hub centered vx lug centered debate and I know
that going with lug centered will be OK. From What I've seen not much out there for us to pick from without spending $1500 on up
for a set of 7. These run just a touch over $900 for a set of 7. The load rating is 32oo lbs.
Bob Broadwell
75 Eleganza II-Rebuilt performance engine, Manny trans, Manny 1-ton front end, 73 23ft with a side bath getting some updates-both living in Las Vegas
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| Re: New GMC Owner [message #334278 is a reply to message #334276] |
Sat, 30 June 2018 19:39  |
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Matt Colie
Messages: 8547
Registered: March 2007
Location: S.E. Michigan
Karma: 7
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Senior Member |
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BoboBob13,
Welcome to the group, family, cult, asylum.....
You definitely have an effective background for this.
Do you have all the documentation? It is all (and I do mean all) available for download. There are some special tools that might be required, and many of those are available on loan from owners here. (You do get to pay shipping.)
You found your way here, and that is great. What you have to get settled with now is that you have just collected a couple thousand new old friends.
I am going to ask you to do both yourself and us a favor (why will be clear soon), and that is that you build a sigfile. You are working the forum, so this is easy. Go up to <Control Panel/Account Settings> and scroll down until you find the sigfile box. Fill in a name (real name is preferred here so that when you meet other GMC owners, and you will, they will know you from a bar of soap), and it is friendlier. A short bit about the coach and you should include anything that might change how it is treated (like Manny Trans, 1 ton, and worked up engine). An a geographic reference. The half of the people here that read this as E-mail don't get to see the header that says Las Vegas. Then remember to scroll down to and click <Update>.
I too am interested to see if someone is running with those wheels. Several are running lug centered already.
Now, one of the things you have to realize about this community is that it is like few others. Just about everybody here has an agenda (there is nothing hidden about it) and that is to see to it that you get to enjoy your coach and what it can do for you as much as we all enjoy ours. The only way to really annoy them is to not take advice given here to heart. There are millions of miles and decades of experience here. These are very helping and supportive people. The only other community that I know of that is like this is that of the watermen that are my world. For that reason, I have taken to welcoming new owners that arrive here much as any new owner or vessel is welcomed there. So,
May the Good Lord bless this coach and all those that set forth within her.
Welcome BoboBob
Matt
Matt & Mary Colie - Chaumière -'73 Glacier 23 - Members GMCMI, GMCGL, GMCES
Electronically Controlled Quiet Engine Cooling Fan with OE Rear Drum Brakes with Applied Control Arms
SE Michigan - Near DTW - Twixt A2 and Detroit
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| Re: New GMC Owner [message #334280 is a reply to message #334276] |
Sat, 30 June 2018 21:03 |
SpookyEng
Messages: 208
Registered: June 2016
Location: Navarre, FL
Karma: -5
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Senior Member |
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Welcome to the madness! I have been running lug centered American Eagles with no issues.
JD Lisenby- USAF Ret
1978 Royale-455
MacDash, Manny Tranny, FI-tech, 3.70 etc etc
Navarre, FL
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| Re: New GMC Owner [message #334285 is a reply to message #334280] |
Sat, 30 June 2018 21:20 |
BoboBob13
Messages: 49
Registered: June 2018
Location: Las Vegas
Karma: -3
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Member |
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Thanks for the welcome JD.
Do you use a shouldered lug nut or tapered seat lug nut?
Bob Broadwell
75 Eleganza II-Rebuilt performance engine, Manny trans, Manny 1-ton front end, 73 23ft with a side bath getting some updates-both living in Las Vegas
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| Re: New GMC Owner [message #334291 is a reply to message #334286] |
Sat, 30 June 2018 21:55 |
BoboBob13
Messages: 49
Registered: June 2018
Location: Las Vegas
Karma: -3
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Member |
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I got one of those carbs-they call it a dual capacity accelerator pump that the shop I bought my 76 GMC from
put on when they built the engine. The builder left out the solenoid and has a pug in the top where the wiring
would go. These carbs had no (MC) mixture control solenoid or (TPS) throttle position sensor. From what
I have been able to find out so far is they were on 85-86 non computer controlled trucks 305 on up. I am looking
for the jets and rods that were used on this carb to have some place to start tuning. Not sure on the CFM as I
not checked for the bumps in it. I think with some time I cam make this carb work well. It came with 75 jets,
44 primary rods and CH (.0567-S) secondary rods-way too big.
Bob Broadwell
75 Eleganza II-Rebuilt performance engine, Manny trans, Manny 1-ton front end, 73 23ft with a side bath getting some updates-both living in Las Vegas
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| Re: New GMC Owner [message #334304 is a reply to message #334276] |
Sun, 01 July 2018 07:38 |
jhbridges
Messages: 8412
Registered: May 2011
Location: Braselton ga
Karma: -74
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Senior Member |
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Welcome. My coach has Eagle Alloy copies of the Hot Shot wheels, lug centered with shoulder lugs. Works great, after you get the first two lugs started.
--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
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| Re: New GMC Owner [message #334332 is a reply to message #334285] |
Sun, 01 July 2018 13:54 |
SpookyEng
Messages: 208
Registered: June 2016
Location: Navarre, FL
Karma: -5
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Senior Member |
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BoboBob13 wrote on Sat, 30 June 2018 21:20Thanks for the welcome JD.
Do you use a shouldered lug nut or tapered seat lug nut?
They are shouldered lug nuts.
JD Lisenby- USAF Ret
1978 Royale-455
MacDash, Manny Tranny, FI-tech, 3.70 etc etc
Navarre, FL
[Updated on: Sun, 01 July 2018 13:55] Report message to a moderator |
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| Re: New GMC Owner [message #334451 is a reply to message #334431] |
Mon, 02 July 2018 15:48 |
BoboBob13
Messages: 49
Registered: June 2018
Location: Las Vegas
Karma: -3
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Member |
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Thanks for the photos and the invite.
Regards,
Bob
Bob Broadwell
75 Eleganza II-Rebuilt performance engine, Manny trans, Manny 1-ton front end, 73 23ft with a side bath getting some updates-both living in Las Vegas
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