07-10-2011, 09:56 PM | #1 |
Not Yet Wild
Join Date: Jul 2011
Posts: 6
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Compression test
Hey all,
What should the compression be on a 91 DS? Upper and lower limits. Thanks, Sean |
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07-10-2011, 10:31 PM | #2 |
Gone Wild
Join Date: Apr 2010
Location: West Tennessee
Posts: 1,269
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Re: Compression test
I like to see 100 on the lower side and most of them come in our shop at around 140-155?
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07-11-2011, 02:22 PM | #3 |
Not Yet Wild
Join Date: Jul 2011
Posts: 6
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Re: Compression test
Thanks for the info,
Sean |
07-13-2011, 10:49 AM | #4 |
Gone Wild
Join Date: Dec 2009
Location: Corpus Christi, TX
Posts: 1,644
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Re: Compression test
Does a flat head really get that high compression? I think mine is on the low side of 100 but thats a big difference from 150 - 100 psi
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07-13-2011, 11:28 AM | #5 |
Gone Wild
Join Date: Jul 2011
Location: SE KS
Posts: 269
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Re: Compression test
The service manual only says should be 100 p.s.i.
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07-13-2011, 11:38 AM | #6 |
Gone Wild
Join Date: Apr 2010
Location: West Tennessee
Posts: 1,269
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Re: Compression test
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07-13-2011, 05:05 PM | #7 |
Gone Wild
Join Date: Dec 2009
Location: Corpus Christi, TX
Posts: 1,644
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Re: Compression test
Its ok, hope wrench71 seees this.
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07-13-2011, 06:32 PM | #8 |
Not Yet Wild
Join Date: Mar 2011
Location: Concord NC
Posts: 51
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Re: Compression test
How about on a 2001 carry all turf 2?
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07-13-2011, 11:05 PM | #9 |
Not Yet Wild
Join Date: Jul 2011
Posts: 6
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Re: Compression test
I did see it. Thanks again for the info. It's kinda a moot point now though. This engine has bigger problems. I've since torn it down and the crank and rod is trashed. Also, the plate on the cam gear was laying in pieces at the bottom of the crankcase. It should all work out ok in the end. I've repaired the loose gear on the cam and the crank & rod are on the way. The top end looks like a million bucks so it should be up and running for a couple hundred. Anyway, thanks again all.
Later, Sean |
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