Fordmods Logo

Where would you go to get the compression rate tested? 

 

Page 1 of 1 [ 8 posts ] 

 
 Post subject: Where would you go to get the compression rate tested?
Posted: Mon Nov 28, 2005 1:18 am 
Getting Side Ways
Offline
User avatar

Age: 36

Posts: 1380

Joined: 6th Nov 2004

Gallery: 3 images

Ride: FPV BF MKII F6

Location: Brisbane
QLD, Australia

as above

where would you be able to get this tested?
whats the rate of a standard engine as well?

 

_________________

OBS35N is gooonnnneeee.
Gone for good..... Damn fence posts!!!!!

OBS35N #2 (XXF6XX) just bought, bring it on

Top
 Profile  
 
 
Posted: Mon Nov 28, 2005 2:48 am 
Getting Side Ways
Offline
User avatar

Age: 31

Posts: 2449

Joined: 5th Nov 2004

Ride: Falcon EB-s

Location: Manjimup
WA, Australia

Hmmmm, i cant remember, but i think around 120psi? Might be a bit off there but. Depends on the condition of the engine. The important thing to look out for is if the pressures arent even. If theyre all low itll be wear, but if one is low it may be a damaged valve, piston, rings, or plenty of other things. You can pick one up yourself and do it yourself, or drop down to your local mechanic. May not even charge you if you rip all the plugs out for them, and then replace them when done. Supercheap auto will sell you one of two types. Either a screw in one with metal thread the same as a spark plug, or a push in one with a taper. The tapered ones are a little bit of an annoyance to use. But make sure you get the correct thread if you use a screw in one! Most come with several adaptors

 

_________________

The problem with America is stupidity. I'm not saying there should be a capital punishment for stupidity, but why don't we just take the safety labels off of everything and let the problem solve itself?
Image

Top
 Profile  
 
 
Posted: Mon Nov 28, 2005 7:02 am 
Oompa Loompa
Offline

Posts: 26

Joined: 23rd Nov 2005

Location: Way Out West
NSW, Australia

Next time im up at newie ill bring my tester ok.
Top
 Profile  
 
 
Posted: Mon Nov 28, 2005 9:57 am 
Getting Side Ways
Offline
User avatar

Age: 30

Posts: 812

Joined: 9th Nov 2004

Ride: xr6t

Location: Newcastle
NSW, Australia

If u just wanna find the pressure on each cylender then i got a gauge u can use. If you wanna find out what ratio your compression is then ive got no idea, but i believe it invloves a complex formula. I could be wrong though.

 

_________________

Rides:
-Ba xr6t, wog cooler, K&N pod on custom intake, battery moved to other side, flash, custom cooler piping, presons auto, car pc, 19" lenso speed 6, going for 300rwkw
-FZR 250- run around bike

Top
 Profile  
 
 
Posted: Mon Nov 28, 2005 10:57 am 
Getting Side Ways
Offline

Age: 31

Posts: 3772

Joined: 5th Nov 2004

Gallery: 33 images

Ride: EL Fairmont Ghia

Location: Hobart
TAS, Australia

good pressure is anywhere between 100 and 600 psi i think u will norm find it to be between 100 and 200 though all the ones ive tested have been
Top
 Profile  
 
 
Posted: Tue Nov 29, 2005 6:08 pm 
Getting Side Ways
Offline
User avatar

Age: 54

Posts: 4102

Joined: 18th Nov 2004

Gallery: 10 images

Ride: PX2 Ranger 4x4 XLT Dual CAB

Location: Carrum Downs
VIC, Australia

bogan393 wrote:
If u just wanna find the pressure on each cylender then i got a gauge u can use. If you wanna find out what ratio your compression is then ive got no idea, but i believe it invloves a complex formula. I could be wrong though.


To measure the compression ratio you need to remove the head and measure the capacity of each combustion chamber using a burette. Then measure the capacity of each cylinder using a internal micrometre. Calculate the ratio from the results.

 

_________________

Image
She's meanness put to music and the b**ch is born to run!
Like the sign says, "speed's just a question of money. How fast can you go?"

Top
 Profile  
 
 
Posted: Tue Nov 29, 2005 6:59 pm 
Oompa Loompa
Offline

Posts: 26

Joined: 23rd Nov 2005

Location: Way Out West
NSW, Australia

130 is the aim
Top
 Profile  
 
 
Posted: Wed Nov 30, 2005 9:25 am 
Tyre Shredder
Offline
User avatar

Age: 34

Posts: 374

Joined: 22nd Dec 2004

Ride: EB 5Spd

Location: Brisbane
QLD, Australia

on my old rebuilt 4l motor it read 160 accross each cylinder, ran standard compression but had a reco head, wasnt even bored out or anything

 

_________________

Image

Top
 Profile  
 
Display posts from previous:
Sort by  
 Page 1 of 1  [ 8 posts ] 

Who is online

Users browsing this forum: gf0012-aust, Google [Bot] and 33 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 Sat Dec 16, 2017 11:05 am All times are UTC + 11 hours

 

 

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