8 replies to this topic

[H.M.M.]

Just need a bit of reassurance to be honest.
Haven't started her for 5-7 days, she ran very lumpy to start with, found the dash pot piston in the carb had seized, managed to free and restart. Sounded a lot better and ticked over better. Just had a huge amount of blue smoke from the exhaust. Let her warm up and took her for a short spin to see if this would clear it. She still smokes but no where as bad. Should I see what happens after a better ( longer ) run out before I assume the worse. I know if the valve stem seals are on their way out this may have caused oil to enter the chambers. Just some thoughts really.

Thanks

[Spud_133]

What did you use to unsieze the carb piston? The smoke could be the oil?

[KernowCooper]

Excess oil in the damper can find its way into the inlet and cause a bit of smoking, was it ok before you laid it up 5-7days? give it a good run and see if it clears and runs as before the layup

[ChopperHarris]

and can take a surprisingly long time to clear...ie a 30 mile blast

[Carlos W]

It could also be valve stem oil seals or worn guides

[H.M.M.]

Thanks for the replies.
She was running fine before she was laid up. Didn't use any oil or lubricant to free the carb, jus a v.good clean internally.
I'm back to work today, so the run out should help. :)

Edited by H.M.M., 04 January 2013 - 06:26 AM.

[Bungle]

valve stem oil seals or worn guides both let a little old down into the cylinders while parked up

once driven for a few miles this is burnt off and clears

[H.M.M.]

After a good 50 mile blast she cleared.
Looks like I'll have to change the valve stem seals.

Thanks for all the advice

Edited by H.M.M., 06 January 2013 - 10:14 AM.

[mattdc2r]

Just out of interest, are you using the recommended 20/50 oil?
Matt