Thread: Rear Main Seal Questions with exciting photos

Originally Posted by RRC 4bd1t

Hey Pete,

Do you have the size or part number of the speedi sleeve you used?

Cheers Brian

From memory, when I fitted a sleeve to mine I measured the crank at exactly 100mm. I asked for a 100mm Speedy Sleeve at my bearing supplier and I think it ended up being an SKF one he gave me.

Cheers, Murray

This info from when i did mine might be useful if you haven't already seen it:
http://www.aulro.com/afvb/isuzu-land...ml#post1352548

Genuine Isuzu wear sleeve (thicker than speedi-sleeve) and larger seal (standard from 6bd1).

Steve

Brian & Dougal,
The Redi Sleeve was part number N99393 from Statewide Bearings and cost $27. I'm pretty sure it was a 100mm.

The rear main seal was part # 5096250520 from Don Kyatt at $36.

This is the old ISUZU part number.
Supposedly the new ISUZU part that supercedes this is 10966254020 and this may be the double lipped variety - but I couldn't confirm this. ISUZU said they had one in stock but when I arrived after a gazillion km drive they found they didn't have one (and the quoted price was $133+gst).

The seal has held up ok for 15k - but then you'd be pretty disappointed if it didn't.

Cheers
Pete

Originally Posted by steveG

This info from when i did mine might be useful if you haven't already seen it:
http://www.aulro.com/afvb/isuzu-land...ml#post1352548

Genuine Isuzu wear sleeve (thicker than speedi-sleeve) and larger seal (standard from 6bd1).

Steve

That's some good information, my crank has a good groove in it but was not leaking with the seal I removed so just put a new one in place.

Half tempted to get those parts and do it now before I install the engine just to be safe. Isuzu wanted $60 for the seal though and $98 for the sleeve Canadian Dollars, bit rich for me. But "pay once, hurt once" right?

It looks like the right way to fix the issue.

Originally Posted by DT80series

That's some good information, my crank has a good groove in it but was not leaking with the seal I removed so just put a new one in place.

Half tempted to get those parts and do it now before I install the engine just to be safe. Isuzu wanted $60 for the seal though and $98 for the sleeve Canadian Dollars, bit rich for me. But "pay once, hurt once" right?

It looks like the right way to fix the issue.

To me its a job I don't want to take a chance on as its a lot of work to redo if it leaks again. Not sure how much people have been paying for speedi-sleeves, but the last sleeve I bought in a much smaller size was about $40 anyway so while the Isuzu one is dearer its not over the top.

FWIW, mine has done 40K km's since I fitted it and no sign of any leaks (I'd be very unhappy if there was! ).

Steve

Thanks for the helpful info fellas, much appreciated.

Cheers Brian

Originally Posted by steveG

To me its a job I don't want to take a chance on as its a lot of work to redo if it leaks again. Not sure how much people have been paying for speedi-sleeves, but the last sleeve I bought in a much smaller size was about $40 anyway so while the Isuzu one is dearer its not over the top.

FWIW, mine has done 40K km's since I fitted it and no sign of any leaks (I'd be very unhappy if there was! ).

Steve

Speedi Sleve is $80 my cost so yeah the Isuzu is the way to go.

Mine has been speedisleeved for at least the last 100,000km. The sleeve seems to hold up better than the original crank material.

The NOK seal (Isuzu part) in mine is a NOK BH1295E
135mm OD
100mm ID
10mm thick.

It's a dribbler. I have battled trying to get it leak free for ever. Sometimes it'll stay good for a few months at a time. I suspect these seals just can't handle much at all crankcase pressure.
I've replaced about 3 of these seals and decided they only seal if everything is perfect.

That's the one one right in Cammacs photo from earlier in this thread: