Go Back   The Ford Barn > General Discussion > Early V8 (1932-53)

Sponsored Links (Register now to hide all advertisements)

Reply
 
Thread Tools Display Modes
Old 10-27-2019, 07:11 AM   #1
chuck stevens
Senior Member
 
chuck stevens's Avatar
 
Join Date: May 2010
Location: upstate new york
Posts: 723
Default in the car cam change

I have 8BA in a 40 deluxe and would like to change cams in the car. I would love to hear all your tricks. Oh I don't want to take the heads off, thanks Chuck
chuck stevens is offline   Reply With Quote
Old 10-27-2019, 08:49 AM   #2
marko39
Senior Member
 
Join Date: Oct 2016
Location: harpursville ny
Posts: 623
Default Re: in the car cam change

I believe this was in a thread last week. Most agree it is easier to pull the engine.
marko39 is offline   Reply With Quote
Sponsored Links (Register now to hide all advertisements)
Old 10-27-2019, 02:07 PM   #3
JSeery
Senior Member
 
JSeery's Avatar
 
Join Date: Nov 2012
Location: Wichita KS
Posts: 15,967
Default Re: in the car cam change

Not easy to do and lots can go wrong! But, it can be done (even if it is doing it the hard way!).
JSeery is offline   Reply With Quote
Old 10-27-2019, 02:19 PM   #4
Brian
Senior Member
 
Brian's Avatar
 
Join Date: May 2010
Location: Masterton, New Zealand
Posts: 3,070
Default Re: in the car cam change

Chuck, I told you how to do this last week when you asked....
__________________
Unfortunately, two half wits don't make a whole wit!
Brian is offline   Reply With Quote
Old 10-28-2019, 07:26 AM   #5
chuck stevens
Senior Member
 
chuck stevens's Avatar
 
Join Date: May 2010
Location: upstate new york
Posts: 723
Default Re: in the car cam change

Brian, thanks for the come back, I have more than one flathead so I completely forgot about the 49 cam question. Both of these cars have freshly rebuilt 8BA's and they both have low oil pressure, 5lbs., at idle when warm, sometimes 0. The cams were reground and I think they may have turned the journals. The machine shop replaced the bearings with standard bearings so there could be extra clearance there. It is my fault, for not checking the cam. The engine is totally quiet , no unusual sounds, i have two oil gauges on each of them. I have about 5k on both of them with no changes, thanks for your help, Chuck.
chuck stevens is offline   Reply With Quote
Old 10-28-2019, 01:59 PM   #6
Ronnieroadster
Senior Member
 
Ronnieroadster's Avatar
 
Join Date: Dec 2010
Location: East Coast in CT
Posts: 984
Default Re: in the car cam change

Sponsored Links (Register now to hide all advertisements)
Usually when a cam is reground a polishing of the cam bearing journals is done once the lobes are finished. Prior to the decision to use a cam for grinding the cam bearing journal dimension prior to the work should be measured. Fords minimum cam bearing journal dimension is 1.7955 usually a worn cam will measure below this dimension especially on the rear and center bearing location. The proper way to save a cam that measures under the Ford dimension is to grind the bearing surfaces to .010 undersize and of course install the new undersize cam bearings in the block.
Ronnieroadster
__________________
I use the F word a lot no not that word these words Flathead , Focus and Finish.
"Life Member of the Bonneville 200 MPH Club using a Ford Flathead block"
Owner , Builder and Driver of the First Ford Flathead bodied roadster to run 200 MPH Record run July 13, 2018 LTA timing association 200.921 from a standing start in one and a half miles burning gasoline.
Ronnieroadster is offline   Reply With Quote
Old 10-28-2019, 02:26 PM   #7
Brian
Senior Member
 
Brian's Avatar
 
Join Date: May 2010
Location: Masterton, New Zealand
Posts: 3,070
Default Re: in the car cam change

When I get a camshaft reground, because the grinding operation takes place between centres, I then get the journals ground undersized to fit the measured dia of the newly installed undersized bearings. This ensures perfect concentricity of the cam lobes.
__________________
Unfortunately, two half wits don't make a whole wit!
Brian is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Sponsored Links (Register now to hide all advertisements)


All times are GMT -5. The time now is 09:42 AM.