Hello...

I have a very anoying problem...my PK is equiped with 130cc DR tuning kit and its always leaking oil between cylinder and cylinder head...i tried with about 5 different high temperature silicone jointing pastes but it doesnt help...so i was thinking if someome has a 130 POLINI cylinder head to sell(that sure has better finishing touch than DR cylinder head) or if someone can recomend a good mechanic who can flat out my head?

You can easily flat it our yourself with a glass plate and abrasive paper.

 

You can also mill a notch with a Dremel in your cylinder head by using a can with the right diameter to run it along. It only has to be a few 1/10mm deep. Then put on a little Uhu high temperatute silicone and wait till it's dry. Now mount the head again, it will stay dry. It works like an o-ring.

I tried with glass and sandpaper but it didnt work...

But thanks for advice

I had the same problem. I fixed it by changing to Polini 133 Race.

Did you change the head only?

And if you did is that the head with copper gasket?

The whole kit including the copper gasket. Works fine, best decision after all...

Have you tried Loctite 5920? That is the best sealing I've had so far...

 Otherwise I would change the whole cylinder kit