Con-Rod, installation

[chunk t]

Question???

Obviously there is a crank end and piston end to the rod. But is there a "front & back" (front meaning facing front plate)? Does it matter. I've got rods from an 8907 (round cross section) and an older 8906 (flat cross section) which I'm working with.

chunk t

 

[Bob Kensill]

There is a chamfer on the side of the lower bushing,that faces the crank.

 

[RodneyPierce]

There is a chamfer on the side of the lower bushing,that faces the crank.

what about on the RPM connecting rod? I thought I saw a chaffer on each side of that rod? Correct me if I am wrong please.

 

[Ivy McNeil]

There is a chamfer on the side of the lower bushing,that faces the crank.

They chamfered both sides so you cant screw up.

Ivy McNeil

 

[chunk t]

There is a chamfer on the side of the lower bushing,that faces the crank.

Yep! that matches my rod from the #8907. The 8906 rod has no chamfer on the bushing, but it does have a lubrication hole which can be alligned to either face the crank or face the back plate. If I was guessing I pick facing the hole toward the crank. Is that correct??

chunk t

 

[RaceCraftBearings]

The oil hole should face the carb.

 

[Bob Kensill]

Don't use a "non-chamfered" rod on a one piece crank, You must chamfer it or it will gall where the crankpin and crank disc meet.

 

[Geraghty]

Don't use a "non-chamfered" rod on a one piece crank, You must chamfer it or it will gall where the crankpin and crank disc meet.

Bob is right,don't put a square edge against a one piece crank that has a crankpin with a radius..........just slightly chamfer both sides of the rod lower bushing with a countersink and you will never be wrong when installing the rod.

 

[chunk t]

Bob/Rod,

Thanks!

chunk t

 

[james irwin]

Don't use a "non-chamfered" rod on a one piece crank, You must chamfer it or it will gall where the crankpin and crank disc meet.

Bob is right,don't put a square edge against a one piece crank that has a crankpin with a radius..........just slightly chamfer both sides of the rod lower bushing with a countersink and you will never be wrong when installing the rod.

HEY ROD , QUESE WHO WAS OVER HERE AT THE SHOP THE OTHER DAY ,

HE SAID TO TELL YOU HELLO . CHARELS DIETRICK , YOU WOULD NOT BELEIVE HOW BIG THAT GUY IS , 19 YRS OLD NOW