K-181 Overhaul

[pfrederi 19,017]

Been awhile since my last overhaul...I am fortunate to have a quality machine shop to do the machining.  He has also did one of my big tractors and 230ci engine in my M37.

 

But like everything else it is getting costlier....Bore and hone .010 over $100 Grind crank $75 Insert and size valve guide $50 valve job $20

 

 

[squonk 44,684]

Well worth it. My last 2 K181's. I had my local shop hit the seats and set the lash on the new valves. $20 cash for the coffee fund. $40 if I wanted to pay by check with a receipt. 

[ri702bill 10,129]

Time is money in that business. You are paying both for a service and the experience with the proper tools to get it done right.

[ebinmaine 74,698]

2 hours ago, pfrederi said:

costlier....Bore and hone .010 over $100 Grind crank $75 Insert and size valve guide $50 valve job $20

 

Bore and hone is about that here. 

Guides.... I dunno IF that can be done. 

Valve grind around here is more of a hand lapping sequence on small engines. 

There's a more concise shop further away. 

They definitely do good automotive work. Small engines.....???

[Ed Kennell 43,161]

6 hours ago, ri702bill said:

and the experience

Knowing how to do it is worth more than doing it.

[Retired Wrencher 6,078]

8 hours ago, Ed Kennell said:

Knowing how to do it is worth more than doing it.

I should have paid more attention in shop class. That would’ve been valuable. 

[squonk 44,684]

Pretty much most of the work can be done DIY with economical tools. The machine shop comes into play when the cylinder needs boring, valve guides need replacing and the crank needs to be ground. 

 

I ran into a situation on one of my last rebuilds. I bought new valves From I Save and the intake valve face must not have been cut right. Inserting it into the engine it was too short. I had a huge gap where usually you have to trim the stem for clearance. So I call the local shop about getting the face cut and he said he could do it right away. So I had him set the lash while he was at it. And for $20 cash it was worth it to me to have him just do the lash on the  next engine I did.

[richmondred01 2,314]

Those are reasonable prices.

[Retired Wrencher 6,078]

23 hours ago, squonk said:

Pretty much most of the work can be done DIY with economical tools. The machine shop comes into play when the cylinder needs boring, valve guides need replacing and the crank needs to be ground. 

 

I ran into a situation on one of my last rebuilds. I bought new valves From I Save and the intake valve face must not have been cut right. Inserting it into the engine it was too short. I had a huge gap where usually you have to trim the stem for clearance. So I call the local shop about getting the face cut and he said he could do it right away. So I had him set the lash while he was at it. And for $20 cash it was worth it to me to have him just do the lash on the  next engine I did.

Mike thanks for that info. I bought valves for them early this year I hope they turn out to be good.