Thread: 300Tdi rear main - Again!

Just a thought but have you checked your crankcase breather is not blocked, its usually the biggest seal that lets go if pressure builds up in the crankcase. Check for blowback when the oil filler cap is removed when motor running.

BTW, I've had my T-seal replaced twice in 145k.

Cheers

Mark

Seal face should not be touched or have oil/grease come in contact with it, they have a film/coating applied during manufacture that helps them bed in and seal. That will most likely be why it is leaking. Also heard that some of the non-genuine seals are rubbish.

apparently you need one of these? so i have been told on here. the boys there have made it better than OEM

Turner Engineering LUF100430 Rear Oil Seal

Originally Posted by Vanderz

apparently you need one of these? so i have been told on here. the boys there have made it better than OEM

Turner Engineering LUF100430 Rear Oil Seal

This is the way to go since the Dowty[OE] are no longer available, i use ultra blue and nothing on the seal face, if you ar buying a vrs kit with this from turners DO NOT USE the backing plate included behind this seal, Turners used to use/supply the dowty rear main seal but they are no longer available and now supply the 2.8 seal above

Had the problem a few years ago and was crank case pressure from worn rings.

Make sure you check this. I did not have any other signs other than three rear main seals nackered. There was no normal smoke from the rear of the car.

Quick little check. Start the car and take out the oil dipstick and give it a little rev. If oil sprays out of the dip stick tube you have too much crank case pressure.

Originally Posted by redrovertdi

This is the way to go since the Dowty[OE] are no longer available, i use ultra blue and nothing on the seal face, if you ar buying a vrs kit with this from turners DO NOT USE the backing plate included behind this seal, Turners used to use/supply the dowty rear main seal but they are no longer available and now supply the 2.8 seal above

do you have to buy another backing plate? or use the current one that is on there with the new seal?

Originally Posted by Vanderz

do you have to buy another backing plate? or use the current one that is on there with the new seal?

Just to clarify the backing plate i refer to is a tin gasket that goes behind the rear main seal[i shouldnt have reffered to it as a backing plate], i was told not to use it in the past by MR automotive and didnt, at a much later date a friend doing a rebuild with all turners supplied parts had the new rear main leak immediately and after contacting turners they said he shouldnt have used the tin gasket with the new tgv2.8 rear main that was supplied in the kit, it was also supplied in my kit from them[why include it if its not needed?]

so does nothing go in the place of that said tin gasket or do you need to find a rubber land rover equivalant ?