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gbrandt
Samba Member
Joined: April 04, 2006
Posts: 590
Location: Calgary
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 Posted: Wed Mar 08, 2017 1:27 pm Post subject: Compression and Leakdown numbers |
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Hi Volks,
I got a compression and leakdown test done, here are my numbers:
cyl 1 160 and 15%
cyl 2 160 and 28%
cyl 3 160 and 10%
cyl 4 170 and 10%
I'm not worried, what do you think.
Not certain if it was a hot or cold test
Gregor
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'Lucky' our 1987 Red Westy, ALH 1.9 TDI
We've driven in 49 countries and 5 continents to date
Canada to Argentina and back, 2015 to 2017.
Canada to Europe and back (including Turkey, Morocco and Iceland), 2017 to 2019
Mexico 2022-2023
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MarkWard
Samba Member
Joined: February 09, 2005
Posts: 18774
Location: Retired South Florida
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| Posted: Wed Mar 08, 2017 3:01 pm Post subject: Re: Compression and Leakdown numbers |
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| Compression looks good and within the allowed margin. Leak down is a little high for cylinder 2. I would continue to run it, but maybe next time, do the leak down test first on a hot engine. Start with cylinder 2. The rings may have washed down from fuel affecting the numbers you were getting. |
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bluebus86
Banned
Joined: September 02, 2010
Posts: 11075
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| Posted: Wed Mar 08, 2017 3:14 pm Post subject: Re: Compression and Leakdown numbers |
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| MarkWard wrote: |
| Compression looks good and within the allowed margin. Leak down is a little high for cylinder 2. I would continue to run it, but maybe next time, do the leak down test first on a hot engine. Start with cylinder 2. The rings may have washed down from fuel affecting the numbers you were getting. |
if it is fuel wash, look for a leaky injector.
I would not worry until I see a repeat fail, test again, see how the tests compare, you dont know now repeatable these results are yet. lets see a second test
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gbrandt
Samba Member
Joined: April 04, 2006
Posts: 590
Location: Calgary
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| Posted: Wed Mar 08, 2017 3:19 pm Post subject: Re: Compression and Leakdown numbers |
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Getting new injectors, so it will be a good test.
Thanks.
_________________
'Lucky' our 1987 Red Westy, ALH 1.9 TDI
We've driven in 49 countries and 5 continents to date
Canada to Argentina and back, 2015 to 2017.
Canada to Europe and back (including Turkey, Morocco and Iceland), 2017 to 2019
Mexico 2022-2023
https://www.instagram.com/live.travel.play/
http://livetravelplay.ca |
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jberger
Samba Member
Joined: November 17, 2003
Posts: 2476
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| Posted: Wed Mar 08, 2017 4:36 pm Post subject: Re: Compression and Leakdown numbers |
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| The compression numbers don't mean anything unless GoWesty told you what range is acceptable. That is a non stock engine. The Leak down is not too good... or bad. Where is the leakage coming from? |
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