Craftshaft shortening

[KE4AVB]

I will doing a crankshaft shortening project this weekend. Just wondering if anyone else had to do this for the PTO end. The 130000 series L-head the customer has is on a log splitter and the shortening is needed for proper Lovejoy alignment in its safety housing so I don't need to make the 9/16-5/8 custom spacers. I will be using the keyway slot so I don't need the threaded end. The replacement is a 130G32-0011 OHV Promo engine with a metal gas tank. This the only modification that is needed to replace and upgrade the engine. Of course I need to put chamfer on the end to make it easier to start the coupler.

Of I got to get a new L075 Lovejoy coupler since they don't sell that I know of the rubber spider separately.

[bgsengine]

Lots of them. Actually Briggs has training video on that (or they did) basically just a hacksaw , drill, tap & die set all is needed. What I do to make sure I get a square cut is to run the lovejoy on the shaft backwards and use the flat end as a guide (lock down with the allen set screw) to make the cut just a teeny bit longer than needed, and polish off the cut with a hand grinder to flush with the lovejoy's flat face after adjusting it to the final length dimension.

[bgsengine]

Of I got to get a new L075 Lovejoy coupler since they don't sell that I know of the rubber spider separately.

Tried Grainger? https://www.grainger.com/product/TB-WOO ... ling-3KX92

[KE4AVB]

Yes that what I planning to with the coupler. And thanks for link as that is the piece I need. Funny usually Google finds stuff like this.

[KE4AVB]

Well the patient is in the recovery room. The transplant operation went well, now I just got to get the rubber part of the coupler. Sure save a lot work when the replacement engine is cheaper than the rebuild of the old engine which may not even cleaned up at .020 over; some pretty heavy scoring of the cylinder walls.

Well I learn something new today so I must be still alive and kicking.

BGS I just set my length, triple checked my measurements, and use my cutoff grinder. The crankshaft cut fairly easy. I actually expected it to harder metal. Just like building furniture except working with metal instead of wood.

[bobodu]

LOL....I don;t think I even owned an angle grinder until I did about three of those....the times -they are a changing...