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It is currently Tue Mar 31, 2026 6:55 am
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[ 7 posts ] |
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New motor compression test
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estadalis
MMT Member
Joined: Wed Jan 25, 2017 10:00 am
Posts: 39
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 New motor compression test Hey guys. I'm meeting up with a seller this week. Buying a 1748 x series with all stock 36 hp prodrive on the back.
Looking to run a compression test on it. I've done a few before but never on the 36 Briggs. Just making sure I have the right tools here at lsu with me. Will I be able to get away with a 5/8 or 13/16 wrench or is there not enough room for that? If not, I'll need to go buy some deep sockets. Thanks for any input guys. Also, what psi should the gauge be reading for these motors stock? I'd imagine around 120-140.
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| Sun Mar 19, 2017 5:01 pm |
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Russ
MMT 1000 Club
Joined: Mon Dec 31, 2012 11:07 pm
Posts: 4820
Location: West Monroe, LA
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Re: New motor compression test Thin wall deep socket or you may have to pull the heat shields to get to the plugs. Don't remember the size for the champion plugs. It's different than the autolites I run. Make sure you hold the throttle wide open while turning the motor over.
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| Sun Mar 19, 2017 5:32 pm |
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estadalis
MMT Member
Joined: Wed Jan 25, 2017 10:00 am
Posts: 39
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Re: New motor compression test
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| Sun Mar 19, 2017 6:04 pm |
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MaXXis85
MMT Elite Member
Joined: Wed Jan 14, 2009 7:23 am
Posts: 6233
Location: Tarkington, TX
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Re: New motor compression test 5/8 socket, remove plugs, run test with throttle WIDE OPEN. kill switch pulled so there is 0 spark
_________________
Bayou Surface Drive
337-351-0362
Tarkington, TX 77327
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| Mon Mar 20, 2017 6:07 am |
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estadalis
MMT Member
Joined: Wed Jan 25, 2017 10:00 am
Posts: 39
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Re: New motor compression test
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| Mon Mar 20, 2017 3:53 pm |
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jobe
MMT Member
Joined: Sun Feb 12, 2012 10:04 pm
Posts: 23
Location: gueydan
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Re: New motor compression test what was the cmpression ? why hold throttle open?
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| Tue May 30, 2017 6:54 pm |
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MaXXis85
MMT Elite Member
Joined: Wed Jan 14, 2009 7:23 am
Posts: 6233
Location: Tarkington, TX
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Re: New motor compression test
_________________
Bayou Surface Drive
337-351-0362
Tarkington, TX 77327
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| Wed May 31, 2017 6:27 am |
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