Home » Public Forums » GMCnet » Is There Anything Better Than Hearing It Run For The First Time? (Started and ran the GMC engine for a bit today.)
| Is There Anything Better Than Hearing It Run For The First Time? [message #160558] |
Thu, 16 February 2012 17:47  |
A Hamilto
Messages: 4508
Registered: April 2011
Karma: 39
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With some help from my mechanic sister, we started the engine today for the first time since I have owned it. It seems to be firing on all 8, but there is a sporadic knocking noise in the top passenger side. Hard to isolate it any more than that as there is an intermittent squeal in the front (by intermittent, I mean it may be periodic, but it is not continuous). Couldn't tell if the front squeal was a belt, an alternator or water pump bearing or power steering pump, or fan clutch, or the fan scrubbing on the shroud. Also need to disconnect power to the air compressor until I get the knock figured out because the air compressor was contributing to the all the other noise that is making it hard to tell what is knocking on the passenger side of the engine (noises echoing all over the engine compartment).
I started it the first couple of times with the ancient chassis battery that came in it. It would fire from the gas we primed it with, but wouldn't run and we pretty quickly ran the battery down. Switched to jumper cables and had to figure out if the needle valve was stuck shut or the fuel pump was bad. It turned out that the fuel pump was bad. Got a gravity feed system jury rigged and all was better. Once the oil got everything lubed up, it smoothed right out.
Getting it started may not seem like much of an accomplishment to those that yank an engine in 8 - 10 hours by themselves, but it made my day.
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| Re: [GMCnet] Is There Anything Better Than Hearing It Run For The First Time? [message #160561 is a reply to message #160558] |
Thu, 16 February 2012 18:02  |
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ljdavick
Messages: 3548
Registered: March 2007
Location: Fremont, CA
Karma: -3
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You've just given me a reason to have a nice drink tonight in celebration of your accomplishment!
Bless you.
Larry Davick
The Mystery Machine
Fremont, CA
On Feb 16, 2012, at 3:47 PM, A. <markbb1@netzero.com> wrote:
>
>
> With some help from my mechanic sister, we started the engine today for the first time since I have owned it. It seems to be firing on all 8, but there is a sporadic knocking noise in the top passenger side. Hard to isolate it any more than that as there is an intermittent squeal in the front (by intermittent, I mean it may be periodic, but it is not continuous). Couldn't tell if the front squeal was a belt, an alternator or water pump bearing or power steering pump, or fan clutch, or the fan scrubbing on the shroud. Also need to disconnect power to the air compressor until I get the knock figured out because the air compressor was contributing to the all the other noise that is making it hard to tell what is knocking on the passenger side of the engine (noises echoing all over the engine compartment).
> I started it the first couple of times with the ancient chassis battery that came in it. It would fire from the gas we primed it with, but wouldn't run and we pretty quickly ran the battery down. Switched to jumper cables and had to figure out if the needle valve was stuck shut or the fuel pump was bad. It turned out that the fuel pump was bad. Got a gravity feed system jury rigged and all was better. Once the oil got everything lubed up, it smoothed right out.
> Getting it started may not seem like much of an accomplishment to those that yank an engine in 8 - 10 hours by themselves, but it made my day.
> --
> '73 23' CanyonLands
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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: Is There Anything Better Than Hearing It Run For The First Time? [message #160563 is a reply to message #160558] |
Thu, 16 February 2012 18:23 |
Dennis S
Messages: 3046
Registered: November 2005
Karma: 2
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Senior Member |
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Congratulations -- big step forward.
look forward to hearing more as you diagnose.
Dennis
| ahamilto wrote on Thu, 16 February 2012 17:47 |
With some help from my mechanic sister, we started the engine today for the first time since I have owned it. It seems to be firing on all 8, but there is a sporadic knocking noise in the top passenger side. Hard to isolate it any more than that as there is an intermittent squeal in the front (by intermittent, I mean it may be periodic, but it is not continuous). Couldn't tell if the front squeal was a belt, an alternator or water pump bearing or power steering pump, or fan clutch, or the fan scrubbing on the shroud. Also need to disconnect power to the air compressor until I get the knock figured out because the air compressor was contributing to the all the other noise that is making it hard to tell what is knocking on the passenger side of the engine (noises echoing all over the engine compartment).
I started it the first couple of times with the ancient chassis battery that came in it. It would fire from the gas we primed it with, but wouldn't run and we pretty quickly ran the battery down. Switched to jumper cables and had to figure out if the needle valve was stuck shut or the fuel pump was bad. It turned out that the fuel pump was bad. Got a gravity feed system jury rigged and all was better. Once the oil got everything lubed up, it smoothed right out.
Getting it started may not seem like much of an accomplishment to those that yank an engine in 8 - 10 hours by themselves, but it made my day.
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Dennis S
73 Painted Desert 230
Memphis TN Metro
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| Re: Is There Anything Better Than Hearing It Run For The First Time? [message #160571 is a reply to message #160558] |
Thu, 16 February 2012 19:04 |
Bob de Kruyff
Messages: 4260
Registered: January 2004
Location: Chandler, AZ
Karma: 1
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| ahamilto wrote on Thu, 16 February 2012 16:47 |
With some help from my mechanic sister, we started the engine today for the first time since I have owned it. It seems to be firing on all 8, but there is a sporadic knocking noise in the top passenger side. Hard to isolate it any more than that as there is an intermittent squeal in the front (by intermittent, I mean it may be periodic, but it is not continuous). Couldn't tell if the front squeal was a belt, an alternator or water pump bearing or power steering pump, or fan clutch, or the fan scrubbing on the shroud. Also need to disconnect power to the air compressor until I get the knock figured out because the air compressor was contributing to the all the other noise that is making it hard to tell what is knocking on the passenger side of the engine (noises echoing all over the engine compartment).
I started it the first couple of times with the ancient chassis battery that came in it. It would fire from the gas we primed it with, but wouldn't run and we pretty quickly ran the battery down. Switched to jumper cables and had to figure out if the needle valve was stuck shut or the fuel pump was bad. It turned out that the fuel pump was bad. Got a gravity feed system jury rigged and all was better. Once the oil got everything lubed up, it smoothed right out.
Getting it started may not seem like much of an accomplishment to those that yank an engine in 8 - 10 hours by themselves, but it made my day.
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Sometimes that knocking can be the fuel pump itself, but it's hard to judge remotely. You may want to try a stethescope.
Bob de Kruyff
78 Eleganza
Chandler, AZ
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| Re: [GMCnet] Is There Anything Better Than Hearing It Run For The First Time? [message #160580 is a reply to message #160561] |
Thu, 16 February 2012 19:54 |
Bruce Hart
Messages: 1501
Registered: October 2011
Location: La Grange, Wyoming
Karma: 5
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Senior Member |
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I'LL DRINK TO THAT:-)
On Thu, Feb 16, 2012 at 5:02 PM, Larry Davick <ljdavick@comcast.net> wrote:
> You've just given me a reason to have a nice drink tonight in celebration
> of your accomplishment!
>
> Bless you.
>
> Larry Davick
> The Mystery Machine
> Fremont, CA
>
> On Feb 16, 2012, at 3:47 PM, A. <markbb1@netzero.com> wrote:
>
> >
> >
> > With some help from my mechanic sister, we started the engine today for
> the first time since I have owned it. It seems to be firing on all 8, but
> there is a sporadic knocking noise in the top passenger side. Hard to
> isolate it any more than that as there is an intermittent squeal in the
> front (by intermittent, I mean it may be periodic, but it is not
> continuous). Couldn't tell if the front squeal was a belt, an alternator
> or water pump bearing or power steering pump, or fan clutch, or the fan
> scrubbing on the shroud. Also need to disconnect power to the air
> compressor until I get the knock figured out because the air compressor was
> contributing to the all the other noise that is making it hard to tell what
> is knocking on the passenger side of the engine (noises echoing all over
> the engine compartment).
> > I started it the first couple of times with the ancient chassis battery
> that came in it. It would fire from the gas we primed it with, but
> wouldn't run and we pretty quickly ran the battery down. Switched to
> jumper cables and had to figure out if the needle valve was stuck shut or
> the fuel pump was bad. It turned out that the fuel pump was bad. Got a
> gravity feed system jury rigged and all was better. Once the oil got
> everything lubed up, it smoothed right out.
> > Getting it started may not seem like much of an accomplishment to those
> that yank an engine in 8 - 10 hours by themselves, but it made my day.
> > --
> > '73 23' CanyonLands
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
>
--
Bruce Hart
GMC Wannabe
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Bruce Hart
1976 Palm Beach
1977 28' Kingsley
La Grange, Wyoming
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| Re: [GMCnet] Is There Anything Better Than Hearing It Run For The First Time? [message #160652 is a reply to message #160580] |
Fri, 17 February 2012 09:42 |
Don A
Messages: 895
Registered: October 2008
Location: Dallas, TX
Karma: 0
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Senior Member |
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<<< knocking noise in the top passenger side. Hard to isolate >>>
Congrats !!
just stick 2 or 3 ft of 1/4 or 3/8 hose in your ear. run along rocker cover, ck each device on front, don't get caught in the belts. Will give you a good idea where to go.
Don Adams Dallas, TX
'76 26' Glenbrook, '90 Sidekick
rebuilt by R Archer, powered by J Bounds, Koba
[IMG]http://www.gmcmhphotos.com/photos/data/6109/G2.jpg[/IMG]
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| Re: [GMCnet] Is There Anything Better Than Hearing It Run For The First Time? [message #160659 is a reply to message #160558] |
Fri, 17 February 2012 10:39 |
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Tangerine
Messages: 192
Registered: February 2004
Location: Livonia, MI
Karma: 0
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Senior Member |
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You my have a hole in the fuel line. Your fuel pump may be drawing
air. I would hook up a fuel line to the input of the fuel pump and put
the other end in a can of gas. I had to drive my coach home from storage
with a gas can strapped to the front bumper. My fuel lines where hard
and cracked. When I used my priming pump, gas would squirt out all
along the fuel line. Not a good thing.
Gary W. Mills (Livonia MI)
. ___________
./_][__][] []| 1974 GMC M/H
.*O-------OO-* Painted Desert
"Tangerine Dream" W/New Frame
On 2/16/2012 6:47 PM, A. wrote:
>
> With some help from my mechanic sister, we started the engine today for the first time since I have owned it. It seems to be firing on all 8, but there is a sporadic knocking noise in the top passenger side. Hard to isolate it any more than that as there is an intermittent squeal in the front (by intermittent, I mean it may be periodic, but it is not continuous). Couldn't tell if the front squeal was a belt, an alternator or water pump bearing or power steering pump, or fan clutch, or the fan scrubbing on the shroud. Also need to disconnect power to the air compressor until I get the knock figured out because the air compressor was contributing to the all the other noise that is making it hard to tell what is knocking on the passenger side of the engine (noises echoing all over the engine compartment).
> I started it the first couple of times with the ancient chassis battery that came in it. It would fire from the gas we primed it with, but wouldn't run and we pretty quickly ran the battery down. Switched to jumper cables and had to figure out if the needle valve was stuck shut or the fuel pump was bad. It turned out that the fuel pump was bad. Got a gravity feed system jury rigged and all was better. Once the oil got everything lubed up, it smoothed right out.
> Getting it started may not seem like much of an accomplishment to those that yank an engine in 8 - 10 hours by themselves, but it made my day.
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1974 GMC 260
Tangerine Dream
Livonia Michigan
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| Re: Is There Anything Better Than Hearing It Run For The First Time? [message #160695 is a reply to message #160558] |
Fri, 17 February 2012 14:37 |
PettyVTX
Messages: 363
Registered: April 2011
Location: Winder Ga.
Karma: 1
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Senior Member |
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Check and see if you have an exhaust leak between the center cyls. I had the same thing happen to me and it sounded like a knock but was a small leak there. If it is replace with good gaskets and torque all but the center bolt lightly tighten it. I used anti-seize on my bolts.
Ted
Ex Avion now looking for a 23'
Jeep Wrangler Towd
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| Re: Is There Anything Better Than Hearing It Run For The First Time? [message #160698 is a reply to message #160695] |
Fri, 17 February 2012 14:56 |
Harry
Messages: 1888
Registered: October 2007
Location: Victoria, BC CANADA
Karma: 3
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Senior Member |
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Anything better than hearing it run for the first time?
Yes, hearing it run for the last time, as it goes down the driveway with the new owner.
"The happiest day for a boat owner?"
"The he gets it and the day he gets rid of it".
But...I think I'll keep all three of mine.....
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