Author Topic: compression test results  (Read 2017 times)

Offline DarnPB

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Re: compression test results
« Reply #10 on: 15 September 2007, 10:12 »
see what I mean - its a ballache :grin: :grin:

Even more of a ball ache when the exhaust studs snap!! :wink:


THE FORUMS NUMBER ONE ANTI-FOOTBALL FAN!!!

Offline mk28vpb91

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Re: compression test results
« Reply #11 on: 15 September 2007, 10:15 »
opps slight typo methinks, it was bar!!! what a dumbass

 tested it out today and it smokes a little under hard acceleration but if i floor it then back off i get a nice little explosion of oil!!! 

 I'm gonna phone machine mart tommorrow and order the bits, will try and do it with the head in place!!!! Doesnt look to bad but will i need to take the cam out???


I used one of these: http://www.tooled-up.com/Product.asp?PID=18043&MAN=Draper-Universal-Valve-Spring-Compressor. The photo below shows part of it installed ready to use. You need an air compressor to pressurise the cylinder and hold the valves up. The stem seals can be very reluctant to move. Have not done the job by taking the head off so can't compare - it wasn't easy doing it the way I did it though and as the tool doesn't lock the valve spring in the compressed position it is useful to get some help when fishing out the collets.

I thought that readings going up after putting oil down the spark plug hole usually indicated ring wear. I used to get smoke during acceleration after running at idle (high vacuum in the cylinders draws in oil) for a while - new valve stem seals fixed that.

Offline benji mk2

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Re: compression test results
« Reply #12 on: 15 September 2007, 13:13 »
well i've managed to get some new seals, the air adpater and a valve removal tool. However the tool that was recommended to me isnt available at my local machine mart so they sold me another one. It clearly says on the front of the box "tool removes valve springs without removal of the head from the engine". This is however is not the case, the heads gotta come off for this one to work!! Muppets. Gonna see what they can do when i ring em back.

 Back to the job tho, what will i need to do to ensure the timing is right when i put it all back on??????


 Cheers to everyone for the help, i'd be lost with out ya!!!!!