Piston ring location and Cometic Gasket

[6mmedic]

I put together my new top end tonight. How can I be 100% sure the rings didnt spin off the end gap dowel when i installed the cylinder? It seems that the little dowel just isnt big enough to make sure the rings dont spin when aligning the cylinder.
Also the Cometic head gasket said to coat it before installation. I used copper coat. Anyone else use anything or did I screw up? How do you guys make sure your cylinder to case nuts are 20ft/lbs, no way a torque wrench will fit in there. Im just hoping for the best. BTW is it just me or do blasters have a lot of engine failures?

 

[stephen12091985]

im about to install my top end mon or tues. so this would help me out also

 

[mr_3_0_5]

id say people have issue's cause they are not jetted properly.

 

[The Ox]

Well you can torque the head bolts, maybe use that as a reference. Some base gaskets come with a sealer in the gasket. Just make sure its all clean before you install. Also, take your time putting the rings into the jug. Hold them into place then slide it in. Tight fit if they are not in the right spot.

 

[Wildcard2]

If the bore is correctly sized you won't be able to slide on the cylinder if the ring is not properly located. Coppercoat is the best to use for coating gaskets. You will need a torque adapter to torque the base nuts(looks like a 3-4" long box end wrench with a square drive on one end, you have to account for the length to get the correct torque). Make sure you have a leak down test done to verify you don't have an air leak when done. Then verify your jetting by doing a series of plug chops. There is a reason for engine failure and it will fail again if you don't diagnose it.

 

[6mmedic]

If the bore is correctly sized you won't be able to slide on the cylinder if the ring is not properly located. Coppercoat is the best to use for coating gaskets. There is a reason for engine failure and it will fail again if you don't diagnose it.

I wondered the same on the piston rings...i guess im good then! Thanks for the coppercoat info. I have no doubt that suckes not leaking now!
Do you feel most engine failures are due to jetting issues and things getting too lean? Seems to me this is the common denominator on most failures! Thanks again bud.