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08-29-2021, 08:40 AM | #1 |
Member
Join Date: May 2021
Posts: 36
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Where did my compression go
I have a motor that ran very good, we have let it sit for several years now there is no compression in any of the cylinders. Is there any thing I can add to the cylinders I assume it has to be the rings. Thanks
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08-29-2021, 08:44 AM | #2 |
Senior Member
Join Date: Dec 2014
Location: Shawnee, Ok
Posts: 3,471
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Re: Where did my compression go
Put some MMO into the cylinders and let it soak for a day...try again
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Keith Shawnee OK '31 SW 160-B |
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08-29-2021, 09:36 AM | #3 |
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Join Date: May 2010
Location: on the Littlefield
Posts: 6,159
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Re: Where did my compression go
Take plugs out and look to see if valves are all moving
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08-29-2021, 09:38 AM | #4 |
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Join Date: May 2016
Location: Glide, Oregon
Posts: 1,339
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Re: Where did my compression go
I agree with Kurt, stuck valves. We had one with two dead cylinders just the other day. Exhaust valves stuck open.
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Ruth "Sometimes you really DO need to read the whole thread" |
08-29-2021, 10:53 AM | #5 |
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Join Date: May 2010
Location: Largo Florida
Posts: 7,225
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Re: Where did my compression go
There is recent thread regarding this that wa started by Grampy.
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08-29-2021, 12:39 PM | #6 |
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Join Date: Apr 2021
Location: St. Augustine, Fl.
Posts: 437
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Re: Where did my compression go
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IN GOD WE TRUST - SEMPER FIDELIS John Last edited by jayvee34; 08-29-2021 at 12:47 PM. |
08-29-2021, 11:22 PM | #7 |
Senior Member
Join Date: May 2010
Location: Mpls, MN
Posts: 27,582
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Re: Where did my compression go
When I bought my 31 Town Sedan it had no compression also. It sat in a garage for several years, and I found the teeth were stripped off part of the cam gear, so it didn't rotate.
Watch the distributor rotor to make sure the cam is turning. |
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