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 Posted: Sun Jun 10, 2012 1:56 pm |
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Joined: Feb 08, 2010
Posts: 901
Trade Rating: +1
Location: Istanbul / Turkey
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Hello Everyone.
Is anybody know what is acceptable values for compression test of 206 GTI180 (EW10J4S). I need brand new engine value and lowest acceptable value. I'm not interesting about difference ratio on cylinders.
Thank you.
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| 2005 206 RC RED
Bilstein B14 Coilover / Brembo 4 Pot Front 330x28 - Rear 325x8 / Quaife ATB Limited Slip Diff / Janspeed Catback
Lot's of CNC machined customs pars.  | |
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Posted: Mon Jun 11, 2012 3:09 am |
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Joined: Feb 07, 2010
Posts: 2949
Trade Rating: +6
Location: Athens, Greece
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Compression ratio = 10.8 for EW10J4S (RFK)
Don't know about min/max though.
P.S. Did you sort-out the whistling in the gearbox?
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| 1.4i, 2001, 3-door, China Blue
Repair safely - Drive safely | |
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Posted: Mon Jun 11, 2012 4:12 am |
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Joined: Feb 08, 2010
Posts: 901
Trade Rating: +1
Location: Istanbul / Turkey
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| V9977 wrote: |
Compression ratio = 10.8 for EW10J4S (RFK)
Don't know about min/max though.
P.S. Did you sort-out the whistling in the gearbox? |
Actually compression ratio for EW10J4S 177 hp RFK engine 11.0:1 and EW10J4 138 hp RFR engine 10.8:1.
But that is compression ratio for volumetric value. I need test value psi or bar showon on gauge. Like 180-210 psi
And I will go service this month (I hope) for whistling crown wheel.
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| 2005 206 RC RED
Bilstein B14 Coilover / Brembo 4 Pot Front 330x28 - Rear 325x8 / Quaife ATB Limited Slip Diff / Janspeed Catback
Lot's of CNC machined customs pars. | |
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Posted: Mon Jun 11, 2012 7:22 pm |
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Joined: Aug 04, 2011
Posts: 1343
Trade Rating: 0
Location: Swindon
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Not that much experience on these engines but lots of experience on others and for an 11:1 compression ratio I would expect a range of 150psi worn engine (any less and it would be getting attention) to 210psi maybe a little higher for a good condition engine.
PSI value is not just dependant on compression ratio but also manufacturers cam timing.
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| Morris 1000, Austin 1100, Escort Mk2, Fiat Mirafiori, Alfa 33, Alfa GT Junior, Alfasud, Alfetta GTV (2x), Alfa 164 3.0 V6, Alfa 164 2.0, Alfa 75 V6, Alfa 156 2.4 (diesel remapped 200bhp), Alfa 147 GTA (3.6 295bhp), Alfa 159 (diesel remapped 245bhp 300ft.lbs @ 2500rpm)
Why isn't my daughter an Alfaholic? | |
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Posted: Thu Jun 14, 2012 11:49 am |
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Joined: Feb 08, 2010
Posts: 901
Trade Rating: +1
Location: Istanbul / Turkey
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Bumpppp
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| 2005 206 RC RED
Bilstein B14 Coilover / Brembo 4 Pot Front 330x28 - Rear 325x8 / Quaife ATB Limited Slip Diff / Janspeed Catback
Lot's of CNC machined customs pars. | |
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Posted: Sat Jun 16, 2012 8:36 am |
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Joined: Aug 04, 2011
Posts: 1343
Trade Rating: 0
Location: Swindon
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Do the compression test and then ask for comments. You will probably get more replies. Also try the tuning section.
Values should be within 10% of each other.
If they are less than about 170 put a small squirt of oil into the cylinder and retest. An increase in pressure suggests worn rings and / or bores. No increase suggests valve seats or cylinder head gasket.
The values I have given already are a very good guide
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| Morris 1000, Austin 1100, Escort Mk2, Fiat Mirafiori, Alfa 33, Alfa GT Junior, Alfasud, Alfetta GTV (2x), Alfa 164 3.0 V6, Alfa 164 2.0, Alfa 75 V6, Alfa 156 2.4 (diesel remapped 200bhp), Alfa 147 GTA (3.6 295bhp), Alfa 159 (diesel remapped 245bhp 300ft.lbs @ 2500rpm)
Why isn't my daughter an Alfaholic? | |
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Posted: Sat Jun 16, 2012 8:43 am |
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Joined: Feb 08, 2010
Posts: 10151
Trade Rating: +12
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i think there is just too much variables.
different camshaft, different gasket (even oem gasket got a few different thickness); and other bits and bobs will also affect compression value.
Not to mention using different pressure gauge will also give different reading....
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Posted: Sun Jun 17, 2012 12:24 pm |
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Joined: Feb 08, 2010
Posts: 901
Trade Rating: +1
Location: Istanbul / Turkey
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| kandlbarrett wrote: |
Do the compression test and then ask for comments. You will probably get more replies. Also try the tuning section.
Values should be within 10% of each other.
If they are less than about 170 put a small squirt of oil into the cylinder and retest. An increase in pressure suggests worn rings and / or bores. No increase suggests valve seats or cylinder head gasket.
The values I have given already are a very good guide |
Thank you but I know how can i interpret results of wet and dry compression test. We already made test over an engine on scrapyard for buying. We will put that engine on 205. But we need average values for starting reference.
@Seabook.
That gti180 engine complete bone stock and 105.000 km on odometer. And its giving nearly 9.5 bar (140 psi) on all cylinders. But I seems to low. I think If the cambelt didnt change on dealer maybe non peugeot guys made a bad timing especially on exhaust cam pulley.
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| 2005 206 RC RED
Bilstein B14 Coilover / Brembo 4 Pot Front 330x28 - Rear 325x8 / Quaife ATB Limited Slip Diff / Janspeed Catback
Lot's of CNC machined customs pars. | |
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Posted: Sun Jun 17, 2012 12:30 pm |
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Joined: Feb 08, 2010
Posts: 10151
Trade Rating: +12
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| Schumi wrote: |
| kandlbarrett wrote: |
Do the compression test and then ask for comments. You will probably get more replies. Also try the tuning section.
Values should be within 10% of each other.
If they are less than about 170 put a small squirt of oil into the cylinder and retest. An increase in pressure suggests worn rings and / or bores. No increase suggests valve seats or cylinder head gasket.
The values I have given already are a very good guide |
Thank you but I know how can i interpret results of wet and dry compression test. We already made test over an engine on scrapyard for buying. We will put that engine on 205. But we need average values for starting reference.
@Seabook.
That gti180 engine complete bone stock and 105.000 km on odometer. And its giving nearly 9.5 bar (140 psi) on all cylinders. But I seems to low. I think If the cambelt didnt change on dealer maybe non peugeot guys made a bad timing especially on exhaust cam pulley. |
really have no idea; you would expect to be a bit higher than that.
But again, 180gti has a longer duration cam than normal car so it would give a lower reading too....
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Posted: Mon Jun 18, 2012 4:18 pm |
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Joined: Aug 04, 2011
Posts: 1343
Trade Rating: 0
Location: Swindon
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I would not be handing over any cash for an engine that only has 140psi.
Did you spin it over with a good battery - a poor battery will give lower results.
Was the throttle wide open - closed throttle will significantly reduce readings.
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| Morris 1000, Austin 1100, Escort Mk2, Fiat Mirafiori, Alfa 33, Alfa GT Junior, Alfasud, Alfetta GTV (2x), Alfa 164 3.0 V6, Alfa 164 2.0, Alfa 75 V6, Alfa 156 2.4 (diesel remapped 200bhp), Alfa 147 GTA (3.6 295bhp), Alfa 159 (diesel remapped 245bhp 300ft.lbs @ 2500rpm)
Why isn't my daughter an Alfaholic? | |
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Posted: Fri Jun 22, 2012 4:39 am |
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Joined: Jun 22, 2012
Posts: 126
Trade Rating: +1
Location: United Kingdom
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I know im only new to the forum but have you tried a wet test and if all 4 cylinders are within 10% of each other the engine is fine even if the compression is low, this can be a number of things such as weak cranking faulty tester when was it last calibrated has it ever been dropped? was the throttle open.
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| If your offended by my posts call\r\n0800 I dont care  | |
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Posted: Fri Mar 25, 2016 1:53 pm |
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Joined: Mar 25, 2013
Posts: 12
Trade Rating: 0
Location: Athens, Greece
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I'm looking for the same info for my 206RC since I'm burning quite a bit of oil and I'm planning to do a compression test to get an idea of what's going on...
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| Peugeot 206RC(GTi180) + Quaife ATB | |
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