MECCANO Posted December 15, 2010 Share Posted December 15, 2010 The crank seal seems to have let go last night on my 2.25 pet engine, after working my nuts off to get it back on the road. I only replaced the seal 4 years ago, so being p%$$#d off with it is a slight under statement. I heard you can use a 200tdi crank seal, which is a proper rubber style, and not a poxy dowty type instead. So really i'm wondering if anyone can clarify this, as i don't really want to use another dowty? Thanks in advance Chris Quote Link to comment Share on other sites More sharing options...
MECCANO Posted December 15, 2010 Author Share Posted December 15, 2010 After some searching around, it looks liek the issue is using non genuine parts Quote Link to comment Share on other sites More sharing options...
Rich_P Posted December 15, 2010 Share Posted December 15, 2010 And not only that, I don't think it's possible to use the later crank seals if it is a 3-bearing engine. Quote Link to comment Share on other sites More sharing options...
Phil Hancock Posted December 16, 2010 Share Posted December 16, 2010 As the OP refers to having a Dowty seal i would guess that he is running a 5Brg. Quote Link to comment Share on other sites More sharing options...
MECCANO Posted December 16, 2010 Author Share Posted December 16, 2010 As the OP refers to having a Dowty seal i would guess that he is running a 5Brg. Sorry, yeah it is a 5mb. It also seems to have healed its self. Magic i tells ya Quote Link to comment Share on other sites More sharing options...
Rich_P Posted December 17, 2010 Share Posted December 17, 2010 As the OP refers to having a Dowty seal i would guess that he is running a 5Brg. Good point. Quote Link to comment Share on other sites More sharing options...
Ruuman Posted December 17, 2010 Share Posted December 17, 2010 I've had no end of trouble with 200tdi crank seals. We have seen a few leak for a little bit and then bed in. Only use the OEM seal (should have a plastic applicator), I LM greased all surfaces and also RTV'd round the metal mating area of the seal on the last one we did. Seemed to work ok. Most important thing is that it goes in straight, we cut the rubber from the old seal and the use that as a drift for the new. I have wondered if you could put a second seal in, but I don't think there's enough space. Quote Link to comment Share on other sites More sharing options...
MECCANO Posted December 19, 2010 Author Share Posted December 19, 2010 Well as a follow up, i decided to pull the lump in this delightful weather and replace the seal. On inspection it seemed that there was nothing wrong with the lip itsself... except that it could rotate withing the aluminium body/ sleeve. Which would probably explain why it seemed to gush out when you turned the engine off, and not when it was ticking over. so it looks iike i will eb puttign it back in today... in 6 inches of snow, could be worse, could be raining Quote Link to comment Share on other sites More sharing options...
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