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displaying posts 1 to 4 of 4
| Author | Subject: Compression tester results |
 heliosphan
Senior User  Location: UK Registered: 14 Sep 2007 Posts: 950 Status: Offline |
Post #1
What is considered good or bad in the pressure differences? Today I measured the in laws' Berlingo 1.8 petrol (XU7JP) from cambelt end to gearbox end (is that cylinders 1-4 or 4-1?) as:15.5 13.8 14.2 14.5 Haynes suggests that a difference of more than two bar indicates a fault. The compression tester instructions suggest that anything more than 1 bar is a fault. Who wins? If you see anything of note in those readings, speak up. |
 Posted 25th Dec 2014 at 18:38
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craig903
Regular  Location: whitstable Registered: 08 Jul 2013 Posts: 273 Status: Offline |
Post #2
Well generally french like to label their cyclinders backwards. gearbox end would be cyclinder 1. I would go with 2bar as per the hynes manual. try blowing out around the sparkplug hole with a compressor. You may have had s**t there stopping the compression tester from sealing properly.________________________________________ 208 GTI OwnerTurbo'd '6 project - work in progress |
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Posted 25th Dec 2014 at 19:54
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adam b
Seasoned Pro  Location: The Nam Registered: 24 Jan 2006 Posts: 12,828 Status: Offline |
Post #3
It's not that bad tbh________________________________________ Nothing to see here |
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Posted 25th Dec 2014 at 20:25
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heliosphan
Senior User Location: UK Registered: 14 Sep 2007 Posts: 950 Status: Offline |
Post #4
The test was run on a warm engine so I must admit I could have made sure the tester was a little tighter I think: I was getting slightly burned by the cylinder head as it was.  I also forgot to put some oil through the hole and do a wet test; this might have been illuminating. I may try to do that in the coming days. |
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Posted 25th Dec 2014 at 20:51
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