Advice please - Engine breather passing oil to air filter?

Sorry, loosing the plot, it's a 1988 defender (really a 90), not 1998 (I wish)

This is indicative of worn piston rings allowing compression past the pistons. Blocking off the breather will result in oil being forced past seals. JD

Sorry...Bad piston rings. You can do a compression test to narrow it down to a particular cylinder...but that would be a waste of time because you will ultimately have to replace the rings and hone out the bores.

Good luck!

Hi Andy,

I wouldn't block the pipe off as the pressure in the crankcase will just find another outlet, ie a seal or someting, you can do as I did and just pull it off and put a little plastic bottle on the end to see how much oil is being chucked out. I think the proper term is "piston blow-by". Which means, as the other guys correctly said is knackered rings meaning the crankcase is being pressurised by the combustion process.

Its an easy enough, although time consuming job to fix though if you can budget for a set of rings and the labour to have the bores rehoned. Only gets complicated if the pistons need renewing. Change the shells while you're in there (seeing as you have to take the pistons out anyway) and you'll have an engine that will last you many many years.

These are good little engines, very torquey and much maligned. If it's any consolation I ran my TD with the same problem for about two years with the breather off and would have gone the piston ring/rehone route if I hadn't come by a Tdi.

Hope this helps

Dave

On or around 19 Sep 2004 09:09:44 -0700, snipped-for-privacy@yahoo.com (Dave Reynolds) enlightened us thusly:

for good reason, as they tended to self-destruct. Mind, often due to missing or inadequate maintenance, but the fact remains that few got to 100K miles, from what I hear.

...cue about 27 people with TDs at astronomical mileage.

From what i've heard alot of the early ones have either been blown up/replaced but the later ones were much better comparitively. I took mine out at 128000 miles and is due to go into another 90 very soon once its had a bit of a "tickle"!

Dave,

Thanks for your reply, yes I was thinking along the lines of a bottle, I will give that a go. When running and warm, its fine, and as you said, great torque, plods along fine when of road, so I think I will try and get away with it as long as possible. I am currently having fun chasing fuel leaks, so I have plenty to keep me busy :-)

Cheers again,

Andy

No worries, and if it does go bang i've got the old 2.5TD in the shed if you need it!

Dave

Dave,

cheers, but lets hope it doesnt come to that........ heh, heh, time will tell.

Andy