Post #1
hi can any one help,i done a compression text on my s16 and the readings are as follows,
closest to cam belt first- 162 psi, 127 psi, 145 psi, 147 psi.
can anyone tell me is that ok if not what should it be around?
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displaying posts 1 to 11 of 11
| Author | Subject: s16 compression test |
 tarret
Regular  Location: Maidstone Registered: 27 Sep 2009 Posts: 323 Status: Offline |
i done a compression text on my s16 and the readings are as follows, closest to cam belt first- 162 psi, 127 psi, 145 psi, 147 psi. can anyone tell me is that ok if not what should it be around? |
 Posted 22nd Mar 2010 at 02:41
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miles
Seasoned Pro  Location: Ringwood Registered: 28 Dec 2002 Posts: 3,433 Status: Offline |
Post #2
Very low, They should all be ready within 5% of each other not 20________________________________________ 306 Rallye Sptint/Race Car, 205 CTI 1.9 8v to name a fewRoad, Track and Race/Rally car preparation to your personal requirements, Full Workshop & Diagnostic Facilities New and Second parts, from Plugs to Turbo's We now also carry out Routine Servicing www.pugracing.com & FB Page, https://www.facebook.com/PugRacing Ebay; http://stores.ebay.co.uk/Pug-Racing-Shop 2012/2013/2014/2019 Class Winners at Gurston Down Speed Hillclimb & Joint overall, Class record too along the way, |
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Posted 22nd Mar 2010 at 07:36
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tarret
Regular Location: Maidstone Registered: 27 Sep 2009 Posts: 323 Status: Offline |
Post #3
oh dont sound good then =/any ideas what it could be mate? |
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Posted 22nd Mar 2010 at 22:58
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miles
Seasoned Pro Location: Ringwood Registered: 28 Dec 2002 Posts: 3,433 Status: Offline |
Post #4
Could be valves or ring's, Need to carry out a leak down test, this will show you what it is.________________________________________ 306 Rallye Sptint/Race Car, 205 CTI 1.9 8v to name a fewRoad, Track and Race/Rally car preparation to your personal requirements, Full Workshop & Diagnostic Facilities New and Second parts, from Plugs to Turbo's We now also carry out Routine Servicing www.pugracing.com & FB Page, https://www.facebook.com/PugRacing Ebay; http://stores.ebay.co.uk/Pug-Racing-Shop 2012/2013/2014/2019 Class Winners at Gurston Down Speed Hillclimb & Joint overall, Class record too along the way, |
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Posted 23rd Mar 2010 at 00:40
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tarret
Regular Location: Maidstone Registered: 27 Sep 2009 Posts: 323 Status: Offline |
Post #5
ahh not good =/whats a leak down test? |
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Posted 23rd Mar 2010 at 02:23
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mr swampy s16
**BAD SELLER**  Location: out and about Registered: 22 Oct 2003 Posts: 10,550 Status: Offline |
Post #6
Drop a few drops of oil down each bore and re do the testif the result becomes higher and more even then it points to worn bores/pistons |
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Posted 23rd Mar 2010 at 02:31
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tarret
Regular Location: Maidstone Registered: 27 Sep 2009 Posts: 323 Status: Offline |
Post #7
ok i shall do that cheers  if they stay about the same as before should that make it all ok? or valves. |
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Posted 23rd Mar 2010 at 02:41
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mr swampy s16
**BAD SELLER** Location: out and about Registered: 22 Oct 2003 Posts: 10,550 Status: Offline |
Post #8
That would point at valves. |
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Posted 23rd Mar 2010 at 02:46
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tarret
Regular Location: Maidstone Registered: 27 Sep 2009 Posts: 323 Status: Offline |
Post #9
ok then what should happen if there is nothin wrong with the rings/bores and vavles? thanks. |
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Posted 23rd Mar 2010 at 02:49
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adam b
Seasoned Pro  Location: The Nam Registered: 24 Jan 2006 Posts: 12,828 Status: Offline |
Post #10
The throttle is open or closed when you are testing it?What mileage is the engine and what made you want to comp test it? ________________________________________ Nothing to see here |
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Posted 23rd Mar 2010 at 14:45
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tarret
Regular Location: Maidstone Registered: 27 Sep 2009 Posts: 323 Status: Offline |
Post #11
i had the throttle open when i did it, the mileage is 130,000,i just wanted to see what compression my car was at. it does'nt smoke when im driving only smokes a little on cold start, does'nt seem to be drinking oil, done head gasket at 114,000 (head gasket did'nt go just wanted to do it incase it did), when did the head gasket had a dear little bit/if not none of movement in the pistons, was goin to do the drip test this saturday and see what happens then =/ |
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Posted 24th Mar 2010 at 23:02
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