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Front Camshaft Bearing Length
Posted: Tue Jan 31, 2023 8:38 am
by johnr
The front camshaft bearing (notched style ) needs to be babbitted and bored.
Also the front camshaft journal and thrust face also needs to be touched up by
grinding.
Can anyone tell me what the original length was so that I can determine what
the new reworked length would be ?
Thank You
John
Re: Front Camshaft Bearing Length
Posted: Tue Jan 31, 2023 10:53 am
by RajoRacer
I have a NOS bearing - I'll measure it up when I hit the shop.
Re: Front Camshaft Bearing Length
Posted: Tue Jan 31, 2023 12:17 pm
by johnr
Thank you Steve
Re: Front Camshaft Bearing Length
Posted: Tue Jan 31, 2023 2:36 pm
by Kerry
By the book specs, the bearing length is, 1.967"
Re: Front Camshaft Bearing Length
Posted: Tue Jan 31, 2023 3:29 pm
by John kuehn
Here’s a run down of ModelT specifications. I looked up T specs for the cam bearing and ran into it.
https://www.macsautoparts.com/modelt_specs
This is something that should be included in the resources section on the MTFCA website.
Yes I know it’s Macs but they did make a handy reference guide. The MTFCA could do their own.
If I remember some suppliers used to include T information in their catalogs but most have quit doing it.
Re: Front Camshaft Bearing Length
Posted: Tue Jan 31, 2023 4:24 pm
by RajoRacer
I have several NOS - un-split, notched fronts - 1.966 - 1.967
Re: Front Camshaft Bearing Length
Posted: Tue Jan 31, 2023 5:00 pm
by Mark Gregush
If your cam has been reground, chances are there is no heel left, check it. If that is the case you will need to install a thrust kit.
https://www.modeltford.com/item/3042TK.aspx
What can happen is the lobe can drop into the notch without the thrust kit that is installed between the cover and timing gear.