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First time - Valve seat reamer


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#16 bbuckler ONLINE  

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Posted March 15, 2017 - 06:31 PM

Leakdown test shows 30% now. Someone said there will be some leaking in the leakdown test and until they are ran. I don't feel the air on the intake side.



#17 DH1 ONLINE  

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Posted March 15, 2017 - 06:50 PM

When you do your leak down test.

 

What position is the piston in?



#18 bbuckler ONLINE  

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Posted March 15, 2017 - 07:06 PM

When you do your leak down test.

 

What position is the piston in?

TDC. Someone told me to try with some oil in the cylinder since the rings are new and it was down pass 20%.



#19 DH1 ONLINE  

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Posted March 15, 2017 - 07:16 PM

TDC. Someone told me to try with some oil in the cylinder since the rings are new and it was down pass 20%.

 

NEEDS   to be TDC  in between compression and power strokes.

 

NOT   at TDC in between intake and exhaust strokes.



#20 bbuckler ONLINE  

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Posted March 15, 2017 - 07:17 PM

NEEDS   to be TDC  in between compression and power strokes.

 

NOT   at TDC in between intake and exhaust strokes.

It is. I don't have the crank breather on right not which makes it easier to tell.



#21 DH1 ONLINE  

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Posted March 15, 2017 - 07:21 PM

When you do your leak down test do both values has some lifter clearance? 



#22 bbuckler ONLINE  

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Posted March 15, 2017 - 07:26 PM

When you do your leak down test do both values has some lifter clearance? 

yep. the intake could get grinded 0.01 off the stem



#23 DH1 ONLINE  

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Posted March 15, 2017 - 07:41 PM

If you have clearance then there closed and should not leak.



#24 bbuckler ONLINE  

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Posted March 15, 2017 - 08:27 PM

If you have clearance then there closed and should not leak.

it leaking around the new rings

#25 Dave in NY OFFLINE  

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Posted March 16, 2017 - 11:24 AM

You have done whats called a "3 angle valve job". Looks OK. Ought to work just fine.



#26 Bruce Dorsi OFFLINE  

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Posted March 16, 2017 - 02:36 PM

it leaking around the new rings

 

Hopefully, the rings were installed properly on the piston and the ring gaps were staggered when installed in the cylinder.






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