 compression numbers, how bad are these |
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| mobymutt |
 Oct 8 2017, 06:46 AM
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Senior Member  Group: Members Posts: 553 Joined: 16-December 13 From: Kingston, Ontario, Canada Member No.: 16,770 Region Association: Canada  |
Just did a compression check, here's what I measured:
108, 120, 96, 85 I've got a stock 1.8L, but would like to build a 1911 or 2056 in the relatively near future. Hopefully I'll be ok for another year or so with the current setup. |
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| rgalla9146 |
Oct 8 2017, 07:48 AM
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#2
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Advanced Member Group: Members Posts: 4,671 Joined: 23-November 05 From: Paramus NJ Member No.: 5,176 Region Association: None 
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A leakdown test should be done as well. It will give more specific info.
The compression test should be done after a proper valve adjustment on a cold engine. For the compression test the engine should be at operating temp, battery fully charged, fuel pump disabled, wide open throttle and uniform number of compression strokes on each cylinder. Your engine may be healthier than you think |
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Posts in this topic
mobymutt compression numbers Oct 8 2017, 06:46 AM
914Sixer Looks like time to rebuild. Go for the 2056. Oct 8 2017, 07:02 AM DM_2000 Do a leak down test, that wil let you know where t... Oct 8 2017, 07:13 AM
malcolm2
The compression test should be done after a p... Oct 8 2017, 04:14 PM mobymutt Full disclosure: I did just have the engine apart,... Oct 8 2017, 08:31 AM rgalla9146
Full disclosure: I did just have the engine apart... Oct 8 2017, 09:11 AM Morrie
Full disclosure: I did just have the engine apar... Oct 8 2017, 10:56 AM porschetub
Full disclosure: I did just have the engine apart... Oct 8 2017, 01:53 PM cuddyk If you separated the pistons and jugs and didn... Oct 8 2017, 02:27 PM DM_2000 I don't do the often repeated "add oil to... Oct 8 2017, 04:05 PM mobymutt Thanks to all for the responses (and patience, as ... Oct 8 2017, 04:17 PM Mark Henry Start saving some coin Matt, likely there's go... Oct 8 2017, 05:17 PM mobymutt
Start saving some coin Matt, likely there's g... Oct 8 2017, 06:42 PM injunmort consider the tangine racing cable set up rather th... Oct 8 2017, 05:23 PM mobymutt
consider the tangine racing cable set up rather t... Oct 8 2017, 06:39 PM |
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