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03-19-2015, 09:03 AM
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#21 |
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It ain't gonna be easy.
Join Date: Apr 2008
Location: St. George, SC
Posts: 1,480
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Re: Need help with a Marathon issue
I'm running out of suggestions. Double check compression?
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03-19-2015, 09:07 AM
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#22 |
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Not Yet Wild
Join Date: Nov 2014
Posts: 53
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Re: Need help with a Marathon issue
You mean quadruple check compression? Timing belt tensioner allowing slack during load?
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03-19-2015, 11:38 AM
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#23 |
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It ain't gonna be easy.
Join Date: Apr 2008
Location: St. George, SC
Posts: 1,480
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Re: Need help with a Marathon issue
Haha, no not if your sure. The belt has teeth so not sure that's it. Have you gone through and studied both the service guide and the engine rebuild manual?
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03-19-2015, 11:39 AM
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#24 |
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It ain't gonna be easy.
Join Date: Apr 2008
Location: St. George, SC
Posts: 1,480
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Re: Need help with a Marathon issue
Understand that if we were in your back yard drinking a few beers this would be much easier
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03-19-2015, 12:06 PM
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#25 |
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Not Yet Wild
Join Date: Nov 2014
Posts: 53
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Re: Need help with a Marathon issue
Crap. I hadn't even thought about a bum cam lobe until just now... This has been an ongoing head scratcher for about 6 months. I'm just waiting for someone that'll pop up that's had the exact same problem that'll come through with the old " hey stupid, did you check the..."
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03-19-2015, 12:09 PM
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#26 |
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Not Yet Wild
Join Date: Nov 2014
Posts: 53
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Re: Need help with a Marathon issue
I did observe a significantly lower exhaust temp on one cylinder
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03-19-2015, 06:55 PM
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#27 |
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It ain't gonna be easy.
Join Date: Apr 2008
Location: St. George, SC
Posts: 1,480
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Re: Need help with a Marathon issue
Ok, so let's go back to the valve adjustment then.
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03-19-2015, 07:42 PM
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#28 |
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Not Yet Wild
Join Date: Nov 2014
Posts: 53
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Re: Need help with a Marathon issue
Adjustment is fine. I would be much more interested in measuring cam lift at this point.
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03-19-2015, 09:20 PM
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#29 |
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It ain't gonna be easy.
Join Date: Apr 2008
Location: St. George, SC
Posts: 1,480
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Re: Need help with a Marathon issue
That's what I meant. Get back into the top of the engine and rule all that out. Have you studied over both manuals thoroughly?
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