8 replies to this topic

[minimad82]

hi there   ive got an anoying oil leak, it looked to be coming from the timming chain cover so i replaced the gasket,, no luck, so i removed the cover again fitted a new gaket and used gasket sealer, no still leaked so repeated again with a new cover and guess what    still leaks.I have been told that behind the timming chain back plate is a rubber gasket ( looks like a gum shield) it cuold be from there. Any one else had this problem and can i change the rubber with the engine in???????????  Thanks

[Bell-nose]

Hi,

 

It sounds to me like the oil seal needs replacing - have you reinstalled the washer correctly also? i will be doing this this week.

 

depending on the year of manufacture i believe you will need one of these...if your car is post '92

 

http://www.minispare...|Back to search

 

or if your car is older than '92 - one of these

 

http://www.minispare...06.aspx|Back to

[cian]

Hi i had your issue and was rebuilding my engine changed the half moon seal ( gum sheild ) and the rear timing cover gasket and no leaks, to change the half moon seal the gearbox needs to be split from the engine and to do the rear timing cover gasket the timing chain etc needs removed so both are a faff to change

[minimad82]

bugger was hoping it was a quicker job lol.  the oil seal has been changed too, it isnt leaking from behind the pulley so i ruled the oil seal out

[Gremlin]

Behind the timing backplate is a normal paper gasket, can be changed with engine in, jut do what you've been doing before, then take off the tensioner if it's got on and the 3 cam retaining bolts, remove the chain and sprockets but make sure the sprockets stay in the same relation to the chain, there will 2 small bolts through the plate just under the crank, remove them and the plate will come off, clean up the faces, new gasket and refit everything, make sure the cam and crank are in the same position once the sprockets and chain have been fitted. It may also be leaking from the pulley oil seal

[minimad82]

ive changed the gasket on the back plate tonight and still no luck lol,  so looks like uts engine out time lol

[Bell-nose]

ive changed the gasket on the back plate tonight and still no luck lol,  so looks like uts engine out time lol

can you feel oil leaking from under the timing area with the timing cover off?

 

Changing the gum shield is a big job and will involve going down to the box - you will need a complete new set of engine and gearbox gaskets and its not an easy fox IMO. Can you not live with it until you need to do a strip down?

[minimad82]

ive got a new gearbox gasket set and a half moon gasket, ive not tried with the just the cover off.  the engine has only just been built, so id rather fix it now and get it right

[cian]

If it was rebuilt by someone else i would ring and explain the situation a fresh built engine shouldnt have leaks if it was done properly, the half moon seal mayb hasnt seated properly