I have no idea, but I will say this I could move the piston on the pin , the pin in the rod was a good fit.
I have to put things on hold for a few day until gaskets get here on Monday, got the valves lapped in and head cleaned up.
New guy here, 13 1/2 hp B&S no compression
- Thread starter Dryan
- Start date
I have no idea, but I will say this I could move the piston on the pin , the pin in the rod was a good fit.
I have to put things on hold for a few day until gaskets get here on Monday, got the valves lapped in and head cleaned up.
I have a question: The piston i got came with a piston pin and a package containing 2 pin clips. The piston pin only pass's through the piston from 1 direction, My question is do both clips have to be installed? There is a note in the box that says" Piston pin installation, all parts in this kit must be installed as a set. Do not re-use existing parts"
No clip existing, if I look closely I can only see 1 side that has a set for the clip. The original piston and pin pass's through either side and has seats for the clips, like you were saying.
there might be 2 different piston types requiring 2 clips for one type
i am curious about broken rings and no damage to the cylinder wall, did you reinstall the rings and check the piston land to ring gap
Not quite sure what you mean, I did install 1 of the new rings and squared it up in the bore using a piston, measured the the gap, it was .010, thought that was good.
I have the piston and rod together now using 1 clip, there is no way it could go together using 2.
The rod cap has 2 torq #40 bolts the same size, a #40 bit not not fit like it should, hope this does not become a problem when tightening up. To test the condition of the fit I stuck the bit into the fan to flywheel bolts that were also T-40 and it was excellent fit.
ILENGINE
Lawn Royalty
Could be a running change in part design or manufactured by different company. Maybe they had issues with the clip coming out, so redesigned the piston to eliminate the circlip. I am assuming the side without the circlip faces the bottom of the cylinder when assembled correct.
yes, the clip is on flywheel side . I got the rings on tonight. tommoro will install.
i will get back to
bertsmobile1
Lawn Royalty
Did that piston come from an authorised B & S dealer of from a online retailer on evilbay / amazon etc.
While there is some logic in that shoulder it would make accurate machining of the pin hole almost impossible as you can not hone all the way to a shoulder.
I have a sneaky feeling that piston have have it's origins elsewhere.
It is the sort of thing I would expect to see in a counterfit engine.
If it is genyine then one side of the piston pin should be square on the end to do against the clip while the other end would need a substantial chamfer at the end to compensate for the zone where you can not hone.