dave-izzle
Member +
After some poor compression test results, i have opted to take the head off my car. I'm just wondering though how much work is really involved in doing this? How long will it take, the level of skill required etc?
Removing the head
- Thread starter dave-izzle
- Start date
Lucus182
Member +
Ive just replaced the head on my ep82. took me bout 4 days on my drive after plenty ov complications. Its not too difficult to do to be honest. Once you got all the extras out ov the way i.e turbo, cat, inlet manifold etc dares not much to it. Just take care in timing it up making sure u get it spot on and ensure that you use a 10mm bolt to keep the inlet camshaft tensioned. The headbolts r easy to round off aswell so be careful. I learnt the hard way lol
Si_Glanza
Member +
Get hold of a Carolla Haynes manual (Halfords) im not a machanic i did it using that a few years back. i Then fitted a new headgasket to mine last month took me a day to get it off and back build up.
Just Make sure you mark your timing up, have the right torque to remove headbolts and you will be fine.
Just Make sure you mark your timing up, have the right torque to remove headbolts and you will be fine.
starletjake
Fresh Recruit
Pictures
Has anyone got any pictures of this being done?
Has anyone got any pictures of this being done?
dave-izzle
Member +
i'll make plans then to do this at some point. i'll try and document it too
danturbo4311
Member +
What was the compression results mate you might aswell check the pistons (take them out to check them) whilst your heads off its not that hard just take your time and dont loose any bits & be sure to check aswell as clean everything.
dave-izzle
Member +
it was along the lines of :
110
140
145
115
aka: shit
110
140
145
115
aka: shit
danturbo4311
Member +
Did you try putting a little bit of oil down the cylinders then re doing the compression test on the low cylinders to see if they rise, worked for me when i cracked my piston on the ringland.
What you done to your car in form of mods, and is there oil coming from the breathers or exccessive smoke if so what colour smoke
What you done to your car in form of mods, and is there oil coming from the breathers or exccessive smoke if so what colour smoke
Big_Daddy
Member +
Agreed do a wet test if the compression comes up on the cylinders with the low come ie more than cylinders I would consider a new engine over replacing the pistons. It would probably work out cheaper in the long run
Wats a wet test? taught rebuilding would be a better option
TurboDave
Member +
When you are down on compression if you put a few cap fulls of oil down into the cylinder and do another compression test if the compression increases it is often a sign of a cracked piston. Headgasket failure will not cause the comp to increase in the presence of the oil in the cylinders.
Rebuilding is a good option but only if it is done properly, if he just replaces the two pistons with secondhand ones he still runs the risk that they will not settle into the bores properly and maybe wont last very long.
Changing the engine for a good low milage engine wont cost much more in a garage for labour than a rebuild which doesnt garantee will work.
Rebuilding is a good option but only if it is done properly, if he just replaces the two pistons with secondhand ones he still runs the risk that they will not settle into the bores properly and maybe wont last very long.
Changing the engine for a good low milage engine wont cost much more in a garage for labour than a rebuild which doesnt garantee will work.
dave-izzle
Member +
engine wise i've got:
Mines ECU
FSE fuel pump
HKS actuator (1bar)
JR crank breather filter
HKS mushroom filter
Speedvision S/S manifold
Blitz Nür Spec R Exhaust system
Japspeed De-cat pipe
I've also got an apexi AVCR, which came with the car and i've never really touched it, although ive had a couple of friends poke about with it.... dont know if that could contribute?
Just as a matter of interest, how do you conduct a proper compression test. I just attatched the meter, gave the car a few revs and took a reading...
Mines ECU
FSE fuel pump
HKS actuator (1bar)
JR crank breather filter
HKS mushroom filter
Speedvision S/S manifold
Blitz Nür Spec R Exhaust system
Japspeed De-cat pipe
I've also got an apexi AVCR, which came with the car and i've never really touched it, although ive had a couple of friends poke about with it.... dont know if that could contribute?
Just as a matter of interest, how do you conduct a proper compression test. I just attatched the meter, gave the car a few revs and took a reading...
TurboDave
Member +
Take all plugs and leads off.
Screw the comp tester into where the plug goes, open the throttle fully and turn the engine over for say 5 seconds.
Repeat with the other cylinders.
The cylinders which are ~110psi put 2 cap fulls of oil into the cylinder where the plug goes and repeat the test if the compression rises then that will signify a cracked piston 9 times out of 10.
Screw the comp tester into where the plug goes, open the throttle fully and turn the engine over for say 5 seconds.
Repeat with the other cylinders.
The cylinders which are ~110psi put 2 cap fulls of oil into the cylinder where the plug goes and repeat the test if the compression rises then that will signify a cracked piston 9 times out of 10.