Fordmods Logo

My cylinder compression numbers. Are they good? 

 

Page 1 of 1 [ 7 posts ] 

 
 Post subject: My cylinder compression numbers. Are they good?
Posted: Sat Jun 02, 2007 8:37 pm 
Getting Side Ways
Offline

Posts: 597

Joined: 4th May 2007

Ride: 1992 EBII Fairmont

Location: Aga
VIC, Australia

Ok these are my ratings in PSI for all 6 cylinders.

1. 200psi
2.203psi
3.203psi
4.198psi
5.200psi
6.201psi

Are these good figures?
Top
 Profile  
 
 
Posted: Sat Jun 02, 2007 8:43 pm 
Getting Side Ways
Offline

Posts: 1302

Joined: 10th Nov 2006

Location: Allmods suck so do viruses
WA, Australia

sounds alright 4 sounds abit wrong try doing 4 again

 

_________________

Your all a bunch of f**k Heads delete this f**k account stupid useless C*** who run this site cant even sell something useless wankers

Top
 Profile  
 
 
Posted: Sat Jun 02, 2007 8:47 pm 
Getting Side Ways
Offline
User avatar

Age: 45

Posts: 520

Joined: 23rd Dec 2005

Ride: EF Futura Wagon

Location: Toowoomba
QLD, Australia

They are all fine. All are above 144PSI and are all within 10%. That engine is well within specs. The numbers are actually very good, so your engine is either quite 'fresh' or you have a 'generous' compression gauge.

cheers
Scott

 

_________________

If it doesn't fit, jam it. If that doesn't work use a hammer. - Engineers Motto

Top
 Profile  
 
 
Posted: Sat Jun 02, 2007 8:51 pm 
Getting Side Ways
Offline

Posts: 597

Joined: 4th May 2007

Ride: 1992 EBII Fairmont

Location: Aga
VIC, Australia

It's been serviced almost every 5000k's.

good to see it's far above 144psi.
Top
 Profile  
 
 
Posted: Sat Jun 02, 2007 9:48 pm 
Getting Side Ways
Offline

Posts: 6449

Joined: 11th Nov 2004

i wouldn't expect to see a stocker read that high.
Top
 Profile  
 
 
Posted: Sun Jun 03, 2007 10:36 am 
Getting Side Ways
Offline
User avatar

Age: 56

Posts: 480

Joined: 10th Feb 2005

Gallery: 28 images

Ride: EF Fairmont Station Wagon.

Power: 150 rwkw

Location: Mandurah
WA, Australia

Very good numbers, I got similar with an old guage, bought a new one and got 180 psi across all cylinders. Possibly a dodgy or as MacGyver said a generous guage.

 

_________________

4.0L EF Fairmont Station Wagon. EL GT Snorkel. K&N Pod in air box. 3" Intake piping.
Home port job. 1636 Wade cam. Wildcat Extractors, 2 1/2" cat and exhaust.
2200/2400rpm Dominator More Stall. Stage two mechanical shift kit. 3.73 4 pinion LSD. 15.078 @ 92mph.

Top
 Profile  
 
 
Posted: Sun Jun 03, 2007 10:40 am 
Getting Side Ways
Offline
User avatar

Age: 45

Posts: 520

Joined: 23rd Dec 2005

Ride: EF Futura Wagon

Location: Toowoomba
QLD, Australia

Yeah, as I said they seem pretty high. Have you had the head off to fix a head gasket leak and they shaved the head? This may add a few PSI.

185PSI is a more realistic number.

cheers
Scott

 

_________________

If it doesn't fit, jam it. If that doesn't work use a hammer. - Engineers Motto

Top
 Profile  
 
Display posts from previous:
Sort by  
 Page 1 of 1  [ 7 posts ] 

Who is online

Users browsing this forum: Google Adsense [Bot] and 70 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

 

 

It is currently Thu Apr 25, 2024 11:30 pm All times are UTC + 11 hours

 

 

(c)2014 Total Web Solutions Australia - Australian Web Hosting and Domain Names