Hi all

Following on from aurick's suggestion that i check my sparks to narrow down my loss of performance, they are the right type but two were only hand tight.

I stripped and cleaned them which has restored a lot of the power, but i found a not insignificant amount of oil in the wells that they sit in. Has anyone suffered with this before?

I plan on fitting new sparks as they are showing age, but need to stop the oil leak. My initial thought is rocker cover gasket, but the head assembly seems to be of a design i've not seen before.

Craig

Have a look here:
https://www.fiatforum.com/punto/168442-mk1-1-2-16v-cam-cover-removal-help.html

It's probably the gasket between the 2 halfs of the head.

I had a similar problem with my previsous punto. There was a lot of oil in one of the spark plug because it wasn´t totally tightned but after I tightned it completly the oil never came back.
If you had a gasket problem there would be coming out from the metal of the half head cover. Don't you think?

In order to replace that gasket, the timing needs to come out, so might as well do that.

I'd start by cleaning, adding new plugs then monitor for oil for 1-6 months... oil won't harm the spark plug, but it might harm the coil boots.... so only change that gasket if really necessary.. it's a bigger job that usually.

Sorry for taking a few days to reply.

Thanks for all the advice, I will buy a set of sockets to reach the bolt heads and Check that the carrier head boots are forward correctly before in do any further remedial work.

Does anybody know what they should be torqued to?

Craig

No real point in tightening it... you might just strip the threads.
Leave it do it's thing or replace the gasket.
Get eLearn for the procedures/torques specs! I think this is the one :
Engine cylinder head extension plugs M16 1.3 ÷ 1.6 daNm

This is the problem you're having:

Cheers aurick, looks like exactly the same problem