Best way to compression test

stephenadams · Mar 3rd, 2011, 19:52

whats the correct way to carry out a compression test. I have a testing kit. Do i have to disable the fuel supply to do it...It is an S60 Bi Fuel.....

stephenadams · Mar 4th, 2011, 08:26

come on someone must know out there ?????

BobS · Mar 4th, 2011, 08:45

Hi,

Quote:

come on someone must know out there ?????

I am sure there is someone who knows. But you have to give your post time for them to see it.

Anyway attached is the VADIS procedure for this test.
Hope it is of use?

Bob

stephenadams · Mar 4th, 2011, 10:44

Looks like i have bought a dog................ARRRGGGGGHHHHHHH

I have just done the compression test.... Cylinders 1,2,3,4 all came up on our just under 4 bar.........Cylinder 5 NOTHING.................As i had feared all along............. Getting quotes at the moment from between £700-£900 to do the work.......

I would be happy removing the head myself but would not feel confident putting it back and setting up the timing...

BobS · Mar 4th, 2011, 11:06

Hi,

Bad luck.

Looks like a burnt valve? From what I have read changing and re-seating the valves require involve checking the valve adjustments and this is done by shims. Not an easy (read cheap!) thing for DIYer to do.

Bob

Mar 3rd, 2011, 19:52	#1
stephenadams New Member Last Online: Oct 10th, 2011 13:14 Join Date: Jan 2011 Location: swansea	Best way to compression test whats the correct way to carry out a compression test. I have a testing kit. Do i have to disable the fuel supply to do it...It is an S60 Bi Fuel.....

Mar 4th, 2011, 11:06	#5
BobS Master Member Last Online: May 29th, 2023 19:30 Join Date: Aug 2006 Location: Warwickshire	Hi, Bad luck. Looks like a burnt valve? From what I have read changing and re-seating the valves require involve checking the valve adjustments and this is done by shims. Not an easy (read cheap!) thing for DIYer to do. Bob __________________ V70, 140BHP 2002 AUTO. XC60 2015 AUTO

Mar 4th, 2011, 08:26	#2
stephenadams New Member Last Online: Oct 10th, 2011 13:14 Join Date: Jan 2011 Location: swansea	come on someone must know out there ?????

Mar 4th, 2011, 10:44	#4
stephenadams New Member Last Online: Oct 10th, 2011 13:14 Join Date: Jan 2011 Location: swansea	Looks like i have bought a dog................ARRRGGGGGHHHHHHH I have just done the compression test.... Cylinders 1,2,3,4 all came up on our just under 4 bar.........Cylinder 5 NOTHING.................As i had feared all along............. Getting quotes at the moment from between £700-£900 to do the work....... I would be happy removing the head myself but would not feel confident putting it back and setting up the timing...

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