building an evo motor and need help

[dirtyray]

I got to the compression rings on the motor and was wondering about the dot that I have on one of my rings. Does that indicate direction?


I have flat top pistons on my motor and was wondering what the ingap should be on the rings. Any help is appreciated

 

[ultrat]

Been told dot up......

 

[stefdustin]

That is what I was always told: DOT UP

 

[Jack Klarich]

Typically dot goes up and dont forget to stagger the rings and check the end gap

 

[Breeze3at]

Hi Dirtyray; I just consulted my '92 service manual. Here's a few specifics you might want to know.
Compression ring end gap = .007 - .020
oil ring gap = .009 -.052
the dot goes up, on the 2nd ring, because it is a reverse twist to aid oil control.
ring eng gap positions are - 2 o'clock - oil ring
4 o'clock - top ring & oil expander
8 o'clock - oil ring
10 o'clock- second ring- dot up

 

[nwbikerid]

Yep, dot up, should say that in some of the paperwork that came with the rings.

 

[FishHunter]

Rule of thumb is .004"-.005" per inch of bore, for ring end gaps.
Scott