View Full Version : What's the safest place to head but a 2l engine?
mfc
10th March 2014, 06:22 AM
With out perminant damage to head ?
If I let my car idle for any length of time ,when the throttle is touched there's more smoke than at a spinal tap concert.. Seems that the oil isn't draining from the head fast enough then being drawn into the valves on acceleration ...if I remove the rocker cover there'd be a cup + of oil sitting around the valve spring seats and ozing out of the lower side of the head.
harry
10th March 2014, 06:31 AM
check that the little drain pipe at the rear of the head isn't blocked, or the hole in the head under the rocker cover that goes to the little pipe
oops, I just realised this is s1, not sure if your engine has that pipe.
slug_burner
10th March 2014, 06:59 AM
I suspect that your valve guides are sloppy and the valve seals are shot and on opening the throttle the oil is being sucked down into the combustion chambers.
wrinklearthur
10th March 2014, 07:32 AM
These old engines do need their o-rings around the inlet valve stems replacing regularly, as you have noticed the oil pools around those valve stems and when the o-rings go hard they allow the oil to be drawn down past the inlet valve stems when there is high inlet manifold vacuum.
Good chance to give the exhaust valves a lap in and to replace those seals.
Don't forget to get a new o-ring that goes between the waterpump and thermostat housing if you decide to lift the head.
I haven't tried this yet but you could try it, dry all the oil away from around the inlet valve stems then pour neat engine stop leak around those stems and let the stop leak sit for a couple of weeks. The engine stop leak works by softening seal surfaces so if you have got the time it maybe worth a try.
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mfc
10th March 2014, 09:33 AM
Hmm valves within spec( near new). Lapped , new o rings in guides, oil line metering valve replaced( was absent)....would it be worth using o rings( as in the older style valve stem seals......fit on valve shaft rather than in guide.......is replacing the guides a backyard job or of to an engineer ?
wrinklearthur
10th March 2014, 07:43 PM
Hmm valves within spec( near new). Lapped , new o rings in guides, oil line metering valve replaced( was absent)....would it be worth using o rings( as in the older style valve stem seals......fit on valve shaft rather than in guide.......is replacing the guides a backyard job or of to an engineer ?
Hi mfc 
You would really need to have a read of the workshop manual to answer that one, if you have the gear to do the job, I suppose you could tackle the job yourself. 
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