Replacing all engine gaskets
Discussion
Hello all,
First of all my best wishes to all for 2016 !
Since I have several oil leaks on the engine of my TVR S1 I am planning to take the engine out and replacing the gaskets. I suspect the leaks are coming from the rocker covers and the oil sump gasket, but since the engine has to be removed to replace the oil sump gasket I would like to replace all gaskets.
This is the set I would buy:
http://www.ebay.co.uk/itm/FULL-ENGINE-HEAD-GASKET-...
My question is what to inspect and replace while I'm there ?
thanks !
Robin
First of all my best wishes to all for 2016 !
Since I have several oil leaks on the engine of my TVR S1 I am planning to take the engine out and replacing the gaskets. I suspect the leaks are coming from the rocker covers and the oil sump gasket, but since the engine has to be removed to replace the oil sump gasket I would like to replace all gaskets.
This is the set I would buy:
http://www.ebay.co.uk/itm/FULL-ENGINE-HEAD-GASKET-...
My question is what to inspect and replace while I'm there ?
thanks !
Robin
Edited by RoLS on Wednesday 6th January 20:52
Hi Robin,
The sump can be removed with the engine in situ by cutting out the chassis cross-member and fabricating a bolt-in replacement. You also need to remove the anti-roll bar. Phillpot has done it successfully and I had my S1 done by Ivor, my friendly local TVR guy.
Another likely source of engine oil leakage is the front crankshaft oil seal.
Also make sure that your engine mount rubbers haven't sagged and allowed the sump to chafe against the anti-roll bar. There should be enough clearance to get your finger between them.
The sump can be removed with the engine in situ by cutting out the chassis cross-member and fabricating a bolt-in replacement. You also need to remove the anti-roll bar. Phillpot has done it successfully and I had my S1 done by Ivor, my friendly local TVR guy.
Another likely source of engine oil leakage is the front crankshaft oil seal.
Also make sure that your engine mount rubbers haven't sagged and allowed the sump to chafe against the anti-roll bar. There should be enough clearance to get your finger between them.
Yours must be an early car, 2.8 engine?
On the 2.9 (2.8 may well be the same) there is an O ring on the distributor shaft that is prone to leaking. Oil runs down and can look as if it's coming from rear of rocker covers or the sump. Difficult to tell if there is one included in that set.
Your solution for a small leak or two seems perhaps a little radical? Unless you are careful you may (imho) create more problems than you cure
On the 2.9 (2.8 may well be the same) there is an O ring on the distributor shaft that is prone to leaking. Oil runs down and can look as if it's coming from rear of rocker covers or the sump. Difficult to tell if there is one included in that set.
Your solution for a small leak or two seems perhaps a little radical? Unless you are careful you may (imho) create more problems than you cure
Edited by phillpot on Wednesday 6th January 23:30
Hi,
There is no space between the cross member and the oil sump
.
I have read about cutting it in Steve Heath's book, altough he doesn't recommand it ( weakens chassis or even distorts it).
That and the fact I was thinking if that gasket has come to the end of his lifespan the other might be as well made me consider removing the engine.
My biggist oil leak comes from the oil sump gasket, when parked on a hill nose down oil runs out at the front part of the sump. May also be the crankshaft oil seal.
Breaking gives the same result, ...
There is no space between the cross member and the oil sump
.I have read about cutting it in Steve Heath's book, altough he doesn't recommand it ( weakens chassis or even distorts it).
That and the fact I was thinking if that gasket has come to the end of his lifespan the other might be as well made me consider removing the engine.
My biggist oil leak comes from the oil sump gasket, when parked on a hill nose down oil runs out at the front part of the sump. May also be the crankshaft oil seal.
Breaking gives the same result, ...
No detectable issues, a few have done (or had done for them) this cross member modification, no negative feedback so far!
If oil is literally running out I would strongly suspect the front oil seal, as has been suggested. Sump gasket just "sits there", doing nothing, going nowhere why should it suddenly decide to fail? With age and deterioration it could perhaps "weep" a bit but unlikely to pour out (imho), maybe could put a socket on all the bolts and see if they pinch up a touch?
If there are big lumps of gasket goo everywhere it could be that someone has had it off in the past and done a cr*p job of re-fitting it?
Oil seal on the other hand can wear, perish, generally deteriorate with age and in extreme cases a groove forms in the pulley shaft it seals (or not) onto.
My plan would be a jolly good clean up and some careful monitoring
Edited by phillpot on Friday 8th January 08:28
As Barry says, you want the thick ones (FP292) and it's worth getting the support cups , imho
... and a decent 17mm ratchet spanner.
Been many discussions and advice in the past, here's one to start you off.
... and a decent 17mm ratchet spanner.
Been many discussions and advice in the past, here's one to start you off.
Edited by phillpot on Thursday 14th January 21:15
I bought the mounts and thinking of making the support cups myselfn from some inox tube. Could someone help me with the measurements ? The rubber is 52mm thick, the cups are ?? deep. (40mm ?) I suppose the diameter has to be a close fit so i will measure this when the supports are in.
Hi
Been a while, but i replaced the engine mounts last weekend. Since i sprayed the bolts with WD40 2 months before en repeated it a few times the mounts came loose quite quickly.
Still had to do it by one click at a time with the ratched spanner tough
I also replaced the oil sump gasket and the leak seems solved!
Now started on my doors, and the list doesnt stop there
Thanks for al the advice !
Been a while, but i replaced the engine mounts last weekend. Since i sprayed the bolts with WD40 2 months before en repeated it a few times the mounts came loose quite quickly.
Still had to do it by one click at a time with the ratched spanner tough
I also replaced the oil sump gasket and the leak seems solved!
Now started on my doors, and the list doesnt stop there
Thanks for al the advice !
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