The Ford Barn

MikeK · 05-23-2015, 01:44 PM

If you are doing this with the engine in place did you use a jack to exert upward pressure at each individual bearing when taking your plastigauge measurements? That crank can flex a few thou and give some strange readings if you do not forcibly push it up against the block babbitt while measuring from 'down under'.

My1930ModelA · 05-23-2015, 08:22 PM

Mike, that makes perfect sense, an no, I didn't do this or even think of this when I adjusted mine. Would have been easy to do too as I have a 2 post lift and tripod in my shop. Thanks for the tip! This is my first Model A.

Mark

norcalal · 05-29-2015, 11:15 PM

I put back some shims after the crankshaft seemed to turn too tight. Was a bit nervous, but ran the engine at a fast idle for 30 minutes, and think I'll be OK. Any thoughts? Thanks for your replies!

Mike V. Florida · 05-30-2015, 12:56 AM

I use the aluminum foil method.

05-23-2015, 01:44 PM	#21
MikeK Senior Member Join Date: May 2010 Location: Windy City Posts: 2,919	Re: shimming engine bearings If you are doing this with the engine in place did you use a jack to exert upward pressure at each individual bearing when taking your plastigauge measurements? That crank can flex a few thou and give some strange readings if you do not forcibly push it up against the block babbitt while measuring from 'down under'.

05-23-2015, 08:22 PM	#22
My1930ModelA Member Join Date: Feb 2015 Location: New Philadelphia, Ohio Posts: 32	Re: shimming engine bearings Mike, that makes perfect sense, an no, I didn't do this or even think of this when I adjusted mine. Would have been easy to do too as I have a 2 post lift and tripod in my shop. Thanks for the tip! This is my first Model A. Mark

05-29-2015, 11:15 PM	#23
norcalal Member Join Date: May 2010 Posts: 79	Re: shimming engine bearings I put back some shims after the crankshaft seemed to turn too tight. Was a bit nervous, but ran the engine at a fast idle for 30 minutes, and think I'll be OK. Any thoughts? Thanks for your replies!

05-30-2015, 12:56 AM	#24
Mike V. Florida Senior Member Join Date: May 2010 Location: South Florida Posts: 14,054	Re: shimming engine bearings I use the aluminum foil method. __________________ What's right about America is that although we have a mess of problems, we have great capacity - intellect and resources - to do some thing about them. - Henry Ford II