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Old 12-10-2009, 05:25 PM
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looked in haynes manual for answer and didn't find it

what is the normal pressure range one should expect to see when doing a compression check on a 84 yr model 300tdt engine.

what would be the minimal excepted pressure?

what would be the max deviation between highest and lowest cylinder pressures that would be acceptable?

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Old 12-10-2009, 05:29 PM
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Anything over 300 is good, you're looking for less than 15% difference between cylinders. Do a valve adjustment first.
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Old 12-10-2009, 06:14 PM
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Quote:
Originally Posted by bro frank View Post
what is the normal pressure range one should expect to see when doing a compression check on a 84 yr model 300tdt engine.

what would be the minimal excepted pressure?

what would be the max deviation between highest and lowest cylinder pressures that would be acceptable?
The below chart pressure is in bar.
1 bar = 14.5 psi
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looked in haynes manual for answer and didn't find it-compression-chart.jpg  
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Old 12-11-2009, 02:11 AM
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You can get the Factory Service Manual on CD for $19.99 + $7 shipping. Way more info than in the Haynes Manual. Also way more correct info.

http://www.classictechlit.mbusa.com/MB/product.asp?catalog%5Fname=Retail&category%5Fname=1009%28ClassicTechLit%29&product%5Fid=QL%2D6516%2D5610%2D02%28ClassicTechLit%29
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Old 12-14-2009, 04:08 PM
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got cd. currently no access to working pc where i can install it and use it. but the disc has a nice looking cd jacket.
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Old 12-14-2009, 04:30 PM
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They crash my computer (pc), but I was able to load 'em on the mac, works fine.
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Old 12-17-2009, 11:16 AM
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hey! my b-day in a few days buy me a mac
with fries

just cheese'n ya.

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