1984 280SL, Probably asked before, but

[Malc]

Occasionally the poor old thing lets out an embarassing "blue fart" from the exhaust
There seems no particular instance for it to occur, like a trailing throttle or long idle times.
Its not eating oil either I have hear that the 6 cylinder was prone to valve guide and guide seal wear, but it has had a recon cylinder head by the PO only 25k miles ago
THe only thing I have noticed is there is a lot of "Plumbing" on the intake side, I asume this is crankcase breather /flame trap et al with vacuum controlled diaphram valves - does this need cleaning out on a regular basis
Appreciate your comments
Malc

 

[television]

Occasionally the poor old thing lets out an embarassing "blue fart" from the exhaust
There seems no particular instance for it to occur, like a trailing throttle or long idle times.
Its not eating oil either I have hear that the 6 cylinder was prone to valve guide and guide seal wear, but it has had a recon cylinder head by the PO only 25k miles ago
THe only thing I have noticed is there is a lot of "Plumbing" on the intake side, I asume this is crankcase breather /flame trap et al with vacuum controlled diaphram valves - does this need cleaning out on a regular basis
Appreciate your comments
Malc

I think its quite a simple job to unbolt the breather to clean it, they do fill up, I had to do mine to get it through the test on that engine. If it has never been cleaned it will be full of the old type oil crud.


Malcolm

 

[sprout]

Occasionally the poor old thing lets out an embarassing "blue fart" from the exhaust

Do you do few high speed/long runs? The only comparison I can offer is that our '95 4 litre cherokee, when the old gal is taken on a long run >1.5hrs where the ave speed is > say 50mph, lets go a similar 'fart'; this leaves an oily residue all over the back of the truck. I have been reliably informed that this is nothing untoward and is as a result of her having a 'good blow through' after slow/shorter runs