Foxy Green Foxbody Build

What kinda noise do you make when you thumb up a comment?
 
I think the current problem is caused because the short block builder doesn't know the old saying...

"If you set the clearance a little too loose nobody will know. If you set the clearance a little too tight everybody will know."

When dealing with a Dart block an engine builder would measure the lifters and hone the bores appropriately.
A short block builder should either ask the customer for his lifter diameter or hone the bores to the minimum clearance for the largest generally used lifter.
 
Steve439 said:
I think the current problem is caused because the short block builder doesn't know the old saying...

"If you set the clearance a little too loose nobody will know. If you set the clearance a little too tight everybody will know."

When dealing with a Dart block an engine builder would measure the lifters and hone the bores appropriately.
A short block builder should either ask the customer for his lifter diameter or hone the bores to the minimum clearance for the largest generally used lifter.
Click to expand...

I ordered Morel lifters with the shortblock. They came in a sealed package, but the internet says they measure .874"

So, you tell me.. did they do their job? When I call they say we don't have the specs for that on our build sheet
 
Steve439 said:
I think the current problem is caused because the short block builder doesn't know the old saying...

"If you set the clearance a little too loose nobody will know. If you set the clearance a little too tight everybody will know."

When dealing with a Dart block an engine builder would measure the lifters and hone the bores appropriately.
A short block builder should either ask the customer for his lifter diameter or hone the bores to the minimum clearance for the largest generally used lifter.
Click to expand...
Yup, builder called me and said drop off your lifters.

Edit: I told you to bring it here. 🙂
 
Last edited:
As you would have expected.. my dowel arrived out of spec.

.8750 (-0, +.0002)

.8756 is what I received even though the maximum was supposed to be .8752"
 
Based on thermal expansion, I suppose if the cylinder measures .87520" at 65 degrees it could measure .875368 at 85 degrees
 
My refrigerator is set to 33 degrees.

I'll let you know what it measures after it's been in there a while. Have to run it down to the garage and drop it in
 
what are you measuring with a micrometer? might be a mic reading. might be better off checking with gauge blocks and indicator
 
Always be suspicious of your measuring instrument. They change with temp also. AND a mic can be 0.0000 closed and exactly 1.0000 open, and still be way off at places in between, and not off in the same direction at different places. That is an artifact of the accuracy of the pitch of the screw. That's why shops have entire metrology labs to calibrate this stuff.
Having said that, dowel pins are cheap and made as fast as possible, so it's easy to believe it's off.
 
225digger said:
what are you measuring with a micrometer? might be a mic reading. might be better off checking with gauge blocks and indicator
Click to expand...
I'm not understanding your post, forgive me.

I bought a stainless steel 18-8 dowel that's supposed to measure between .8750 and .8752" maximum.

Using a mitutoyo mic on it. I've measured it several times in several locations and it varies from .8756 to .8754.

I've got it in the freezer trying to achieve .8750 to .8752"
 
225digger said:
what are you measuring with a micrometer? might be a mic reading. might be better off checking with gauge blocks and indicator
Click to expand...
He doesn't have any of that available. I quizzed him a little. He's measuring .0001s in a home garage as best he can. Honestly seems to be doing pretty well, but yeah there's no feeling of confidence with minimal equipment.
 
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