Thread: More Holden Trouble

to diagnose if its the valve guides or seals.....just let the engine idle for 5 mins......
then give it a rev......if you see a big puff of smoke......then they are worn......



idling...allows the oil to build up on the valves and guides.....then opening up the throttle sucks this in
and blows it out the exhaust.......

Originally Posted by DEFENDERZOOK

to diagnose if its the valve guides or seals.....just let the engine idle for 5 mins......
then give it a rev......if you see a big puff of smoke......then they are worn......



idling...allows the oil to build up on the valves and guides.....then opening up the throttle sucks this in
and blows it out the exhaust.......

I will do that first thing in the morning as its the quickest & easyest Will let use all know...Fatty just said she is pretty sure thats what is happening...

Going to do the test & get the info now..

OK went & done the tests use said to do.
The plugs are NGK BP6EFS with the number 13 under
I started the car & warmed it up it was blowing a little smoke very little.I let it idle for a bit then we reved it up & no smoke when reved but it did blow smoke at the bottom of the rev when it was coming down from the rev.Haven't had a chance to have it followed down a hill yet..
Took some pics again.
Plugs are all the same so only took the one out this time as i only had them out when i showed use last time..










OIL on the dipstick



Finger after wiping tail pipe..




Ok i found this engine oil resealer at super crap autos

OIL RESEALER BY liqui moly
300ml
Rejuvernates dried out seals
Reduces oil CONSUMPTION
Stops blue exhaust smoke
Suitable for Petrol, Diesel & lpg engines..

That what it does , should i get some & see if it works.
I still think its in the valve train somewhere , But i have been known to be wrong..

aye up Jas,I see your having fun again

It sounds like there is some smoke when you back off after reving - is that right?

I wouldn't bother with any of the potions, I dont like them - but others may disagree

Plugs are correct and look good, I dont think you have a big problem - maybe just valve stem seals. I cant remember if you said its still using oil?

Cheers,

Adam

Hi Adam yep thats it smoke when back off after reving .
It used just under a quarter on the dipstick since the move close to a month.

Jase, I'm not saying this is 100% iron-clad for sure, but it certainly has all the halmarks of dodgy valve stem seals. At least thats what I would be replacing if mine had those symptoms.

For what its worth, the quick way to replace them is to make an airline adaptor that screws into your spark plug thread. Most people use an old spark plug, gut it and braze a fitting for an airline to it. You then screw it in, run your compressor (which keeps the valves from dropping into the cylinder) then remove the valve springs one at a time and replace the seals, putting the springs back on before you move to the next cylinder. Its a bit of a bastard job but it saves replacing a head gasket and its pretty quick once you get the hang of it. To be honest, it is actually a real bastard - especially if you drop a collet into an oil gallery...

You're pretty handy, you would be better off to just pull the head and do it properly. A short term fix is to put a heavier oil in - but be warned, it may go for another 10 years like that!

Hope that all helps and I'm not being too condescending.

Cheers,

Adam