M block clearancing

[johninmn]

So I started assembling the m engine tonight.well the crank clears the block just fine but the rods hit on the bottom of the bores. It was to be expected but I never really thought about what to do about it until now. Does a guy just take a die grinder to it and guess or is there a better way? Any help is appreciated thanks in advance.
John

 

[IHSMOKE]

yep u got the right idea ... i used a 4 inch grinder with a wore out disc on it too be easy and take your time ...dont be afraid to use soap and hott water to wash out either when ya get done ......clean clean clean.......do you have a face book acct? if so look me up IHSMOKE

 

[johninmn]

I do not have a facebook account. Thanks for the help though.
John

 

[unknownm]

If it was me I would grind it and then take it to a shop and have them wash the whole block I know you don't want to hear that but for 150 dollars its a good insurance that its all clean and no grindings

 

[johninmn]

I plan on washing the whole works thoroughly before final assembly. Right now im working on getting everything clearanced and test fitted.

 

[baldwin racing]

can notch them with a mill or you can get billet rods that will clear with no milling or grinding.......but are not cheep....you should try to keep them the same weight....
kelly

 

[H-66]

Just like they said John, 4" grinder and notch it a little at a time till you're about .060"
clearance. Clean it real good. Been there, it ain't fun but it will be when she runs.

 

[450 Farmall Hooker]

Do you clearence the cylinders before or after boring and honeing? If after, do you do any chamfer/radius to the edge of the clearenced section? Do you run the hone through again after finished? Does the piston skirt run at the clearenced section of the cylinder?

 

[wi50]

Try to have your boreing and honeing done first. Clearancing notches will cause an interupted cut for the boreing operation. It shouldn't matter but your machine shop will appreciate the planning on your part.

I typically set the block in the mill and cut things and then clean up and radius with a die grinder.

 

[wi50]

Try to have your boreing and honeing done first. Clearancing notches will cause an interupted cut for the boreing operation. It shouldn't matter but your machine shop will appreciate the planning on your part.

I typically set the block in the mill and cut things and then clean up and radius with a die grinder.