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Caterpillar 3208 Solutions This sub-forum is hosted by Mike Hohnstein who has been at this kind of thing for 50+ years now, guess I'm addicted. The saga has been all about progressively larger shop space since then. Honestly, never wanted to get into the CAT 3208's that were originally considered to be a throwaway engine but that's all that works in a FC in my world. Same thing with my Ford toter, that came with a NA, too much effort to hang in a 6, so been at it with the CAT V-8 for 20 years now. In reality you can get excellent life out of a CAT 3208 if it's built correctly. Post your questions about the CAT 3208 engines here and Mike will try to help you out.

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  #31  
Old 09-28-2019
Bryce_wes Bryce_wes is offline
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I will go ahead and replace the flexible lines while I am in there. I don’t really have a place to do any work on it as it is far away from my house and it is limiting my part in troubleshooting. I am definitely getting about a cup of fuel every time I start it. I’m not sure how far I trust to go with it to get it to a place where I would be able to work on it. I may have to let the shop it is sitting at do any further troubleshooting as they told me that any troubleshooting I could do without starting to remove parts, and I was having a hard time getting to the actual pump.
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  #32  
Old 11-07-2019
Bryce_wes Bryce_wes is offline
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Well, I wanted to give an update and ask for a little more help. Found that it was definitely the throttle shaft seal and replaced it. The leak is now gone. Now I am having another issue. The fuel vacuum gauge is climbing very quickly up to 15-20 inches. I think this is accurate since somewhere about there the generator stalls. I shut the engine down and the vacuum stays high. I have changed the filter twice now with the same result. I get maybe a mile and the vacuum starts increasing. By about 10 miles the generator shuts off and the engine starts struggling. Do I need to get a case of racors or is there something I am missing.
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  #33  
Old 11-07-2019
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how long was this bird sitting in storage?? probably a bad case of algae.
get a case of filters, or find a fuel polishing service.
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  #34  
Old 11-07-2019
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Quote:
Originally Posted by Bryce_wes View Post
Well, I wanted to give an update and ask for a little more help. Found that it was definitely the throttle shaft seal and replaced it. The leak is now gone. Now I am having another issue. The fuel vacuum gauge is climbing very quickly up to 15-20 inches. I think this is accurate since somewhere about there the generator stalls. I shut the engine down and the vacuum stays high. I have changed the filter twice now with the same result. I get maybe a mile and the vacuum starts increasing. By about 10 miles the generator shuts off and the engine starts struggling. Do I need to get a case of racors or is there something I am missing.
Fuel tank vent(s)/hose(s) clogged?
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  #35  
Old 11-07-2019
Bryce_wes Bryce_wes is offline
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The filters are coming out looking pretty clean but the bird was sitting for several years. I pulled the fuel fill cap and the vacuum stayed. Working on finding filters now.
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1990 SP 36 w/ slide
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  #36  
Old 11-07-2019
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The filters are coming out looking pretty clean but the bird was sitting for several years. I pulled the fuel fill cap and the vacuum stayed. Working on finding filters now.
Maybe the racor fuel hose(s) are sucking closed?
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1991 40' WB ...From 2008 - Present
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  #37  
Old 11-07-2019
Orvie6574 Orvie6574 is offline
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Where are you?
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  #38  
Old 11-07-2019
Bryce_wes Bryce_wes is offline
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In Nashville at a loves truck stop. I don’t think I would make it another couple miles if I hadn’t stopped.
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  #39  
Old 11-07-2019
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someone may have put an electric fuel pump on that is NOT a flow through style,if so and the fuel pump is bad it will cause the issues you have.
It will act as a fuel line plug,no fuel will pass through.
Of course we all all guessing.
Is there a fuel pump switch added to the dash anywhere?
Or an unmarked switch?
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  #40  
Old 11-07-2019
Bryce_wes Bryce_wes is offline
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There is a key on pump. It seems to be flowing. I have another pump I can install. I am trying to figure out why changing the filter corrects the problem for a while.
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