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| | | | Joined: Jul 2006 Posts: 584 'Bolter | | 'Bolter Joined: Jul 2006 Posts: 584 | Got the truck up and running on the road...new problem. I traveled about 4 miles from home, when it was warmed up and it died at a stop sign. Started up with a few cranks. I found had to keep the RPMs above maybe 2000 to keep it running. Anything below that and it would die. When it had died, and I started it back up, then it would idle until I brought the RPMs back up then it would die again under 2000 RPMs. When cold, it will now run fine again. Being a COE, it does have the updraft carb, and I believe it has a governor on it (small aluminum little divice between the intake and the carburator)? Anybody experience something simular to this? | | | | | Joined: Nov 2006 Posts: 2,544 Shop Shark | | Shop Shark Joined: Nov 2006 Posts: 2,544 | I'd take a look for a vacuum leak. Use some carb spary or a propane torch (no flame of coarse) and check the intake manifold, carb base gaskets, hose for wipers, hose for vacuum advance.
Good Luck
Don | | | | | Joined: Jul 2006 Posts: 584 'Bolter | | 'Bolter Joined: Jul 2006 Posts: 584 | The older vehicles don't always make complete sense to me, though they are so simple...but it seems like a vacuum leak would effect the running more when it is cold than hot..It almost seems like vapor lock, but it starts too easily when it does dies...or like it is running too rich...which is OK when cold, but not good when hot.
I'll definately look and I appreciate the help for sure, but it seems different than what I would expect.
Thanks! Tom...I'll post if I find it.
Last edited by Tomcoe; 10/14/2009 9:59 PM.
| | | | | Joined: Nov 2006 Posts: 2,544 Shop Shark | | Shop Shark Joined: Nov 2006 Posts: 2,544 | Tom, just another thought. If your truck has a heat riser on it could it be stuck in the closed position? I've heard of this causing the fuel in the carb to percolate. I'm not real familiar with the Deco COE's as far as a heat riser goes. Just another idea.
Don | | | | | Joined: Jul 2009 Posts: 8 New Guy | | New Guy Joined: Jul 2009 Posts: 8 | Another idea. I put new rings and a piston in my '57 6400 grain truck with a 261. It ran fine but would start cutting out and die after it went about 2 miles and got warm. Drove me nuts. I searched on the web for this type problem and at a tractor restoration site, it said this problem could be caused by a faulty condenser. I put new points and a condenser in and it has not done it since. Unusual, but cheap and simple to try. | | | | | Joined: Jul 2006 Posts: 584 'Bolter | | 'Bolter Joined: Jul 2006 Posts: 584 | I know everyone who gets info is always appreciative, but I just wanted to say THANKS for the input. I will probably get to it today, so hopefully one of them will be a winner. | | | | | Joined: Jul 2006 Posts: 584 'Bolter | | 'Bolter Joined: Jul 2006 Posts: 584 | Well, I finally got'er back together. I had to remove the intake/exhaust, and actually replace the exhaust manifold. COEs are different than standard 216 manifolds's as the heat riser is located in a little differnt spot. It was infact stuck. I did re-seal the manifolds securely and torqued everything, but I think Don wins. The heat riser is now working as it should, and she is purrin just fine. I drove it 20 miles today without any dying problems. THANKS again guys for the input. | | |
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