Profile Picture

Cross drilled camshaft

Posted By RayCarter18 5 Years Ago
You don't have permission to rate!
Author
Message
RayCarter18
Posted 5 Years Ago
View Quick Profile
Supercharged

Supercharged (564 reputation)Supercharged (564 reputation)Supercharged (564 reputation)Supercharged (564 reputation)Supercharged (564 reputation)Supercharged (564 reputation)Supercharged (564 reputation)Supercharged (564 reputation)Supercharged (564 reputation)

Group: Forum Members
Last Active: 6 Months Ago
Posts: 174, Visits: 1.7K
I have a cross drilled cam shaft on my 63 292 which means it must have been changed out for the original. Are there any issues with the cross drilled verses groves does one oil better? I am wondering if this is something to worry about.
2721955meteor
Posted 5 Years Ago
View Quick Profile
Supercharged

Supercharged (1.5K reputation)Supercharged (1.5K reputation)Supercharged (1.5K reputation)Supercharged (1.5K reputation)Supercharged (1.5K reputation)Supercharged (1.5K reputation)Supercharged (1.5K reputation)Supercharged (1.5K reputation)Supercharged (1.5K reputation)

Group: Forum Members
Last Active: Yesterday
Posts: 677, Visits: 77.4K
not as good as groved re oil to rockers,my under standing it was the early type,sure  some 1 will correct us if not dcorect,the advantage of this site
Duck
Posted 5 Years Ago
View Quick Profile
Supercharged

Supercharged (393 reputation)Supercharged (393 reputation)Supercharged (393 reputation)Supercharged (393 reputation)Supercharged (393 reputation)Supercharged (393 reputation)Supercharged (393 reputation)Supercharged (393 reputation)Supercharged (393 reputation)

Group: Forum Members
Last Active: 4 Years Ago
Posts: 349, Visits: 1.3K
The groove can wear away flat after many miles, whereas the X drilled can't. That was the logic behind my going with a drilled one vs grooved. I'm by no means the "go to" guy for info on here, though...


BOO- YA!!! http://www.y-blocksforever.com/forums/Uploads/Images/0f6c8c70-4f39-42e0-a021-bc5e.jpg
Ted
Posted 5 Years Ago
View Quick Profile
Co-Administrator

Co-Administrator (9.2K reputation)Co-Administrator (9.2K reputation)Co-Administrator (9.2K reputation)Co-Administrator (9.2K reputation)Co-Administrator (9.2K reputation)Co-Administrator (9.2K reputation)Co-Administrator (9.2K reputation)Co-Administrator (9.2K reputation)Co-Administrator (9.2K reputation)

Group: Administrators
Last Active: Last Week
Posts: 6.0K, Visits: 105.5K
RayCarter18 (6/12/2014)
I have a cross drilled cam shaft on my 63 292 which means it must have been changed out for the original. Are there any issues with the cross drilled verses groves does one oil better? I am wondering if this is something to worry about.

I have pulled apart several 1963/1964 292’s that had the cross drilled camshafts.  I vaguely remember a technical service bulletin mentioning this but don’t remember the details.  While the oil flow to the top end of the engine with the cross drilled camshaft design is less than with the grooved design, failure of oil flow stopping as a result of camshaft bearing wear is greatly minimized.



Lorena, Texas (South of Waco)


RayCarter18
Posted 5 Years Ago
View Quick Profile
Supercharged

Supercharged (564 reputation)Supercharged (564 reputation)Supercharged (564 reputation)Supercharged (564 reputation)Supercharged (564 reputation)Supercharged (564 reputation)Supercharged (564 reputation)Supercharged (564 reputation)Supercharged (564 reputation)

Group: Forum Members
Last Active: 6 Months Ago
Posts: 174, Visits: 1.7K
Let me see if I understand
Are you saying the the risk of the cam not getting oiled is minimized withe cross drilled or am I reading that wrong. Should I try to find a groved cam and if I do don't I have to replace the lifters ?
RayCarter18
Posted 5 Years Ago
View Quick Profile
Supercharged

Supercharged (564 reputation)Supercharged (564 reputation)Supercharged (564 reputation)Supercharged (564 reputation)Supercharged (564 reputation)Supercharged (564 reputation)Supercharged (564 reputation)Supercharged (564 reputation)Supercharged (564 reputation)

Group: Forum Members
Last Active: 6 Months Ago
Posts: 174, Visits: 1.7K
Let me see if I understand
Are you saying the the risk of the cam not getting oiled is minimized withe cross drilled or am I reading that wrong. Should I try to find a groved cam and if I do don't I have to replace the lifters ?
2721955meteor
Posted 5 Years Ago
View Quick Profile
Supercharged

Supercharged (1.5K reputation)Supercharged (1.5K reputation)Supercharged (1.5K reputation)Supercharged (1.5K reputation)Supercharged (1.5K reputation)Supercharged (1.5K reputation)Supercharged (1.5K reputation)Supercharged (1.5K reputation)Supercharged (1.5K reputation)

Group: Forum Members
Last Active: Yesterday
Posts: 677, Visits: 77.4K
grooved cam would get a constant oil flow,makeing for beter lub to that cam bearing-versus cros drill with stop and start type flow.have had 3 ys apart in the last 6 months non had exseaive wear on the groved bearing of the cam. non had real bad cam bearings,last 1 a truck versiom i would not replace cam bearings. the cam grinder i use tells me the groved cores are hard to get so folks out hear must of read mufets article which sead he would not use a cross drilled cam
pegleg
Posted 5 Years Ago
View Quick Profile
Supercharged

Supercharged (4.2K reputation)Supercharged (4.2K reputation)Supercharged (4.2K reputation)Supercharged (4.2K reputation)Supercharged (4.2K reputation)Supercharged (4.2K reputation)Supercharged (4.2K reputation)Supercharged (4.2K reputation)Supercharged (4.2K reputation)

Group: Forum Members
Last Active: 2 days ago
Posts: 3.0K, Visits: 7.8K
Note, some of the guys are cutting a groove behind the bearing which effectively bypasses the cam altogether. this eliminated the wear issue.

Frank/Rebop

Bristol, In ( by Elkhart) 


2721955meteor
Posted 5 Years Ago
View Quick Profile
Supercharged

Supercharged (1.5K reputation)Supercharged (1.5K reputation)Supercharged (1.5K reputation)Supercharged (1.5K reputation)Supercharged (1.5K reputation)Supercharged (1.5K reputation)Supercharged (1.5K reputation)Supercharged (1.5K reputation)Supercharged (1.5K reputation)

Group: Forum Members
Last Active: Yesterday
Posts: 677, Visits: 77.4K
can't see how that would decrease the cambearing wear,you still have the gruve in the bearing ,but with less oil flow to the bearing., the grove out side the cam bering would asure rocker lube  if a cam bearing turned. heard about cam bearings coming loose but have not witnes it, possibly hapens more often on the crosdrilled cam.
PF Arcand
Posted 5 Years Ago
View Quick Profile
Supercharged

Supercharged (4.4K reputation)Supercharged (4.4K reputation)Supercharged (4.4K reputation)Supercharged (4.4K reputation)Supercharged (4.4K reputation)Supercharged (4.4K reputation)Supercharged (4.4K reputation)Supercharged (4.4K reputation)Supercharged (4.4K reputation)

Group: Forum Members
Last Active: Yesterday
Posts: 3.0K, Visits: 129.1K
I don't have the details in front of me, but apparently Ford went back to the cross drilled cam for a period in 1963 or 64. Probably because they knew they were phasing out the engines effective at end of 1964, & wanted to use up old stock. John Mummert (Machine) discouvered a few years ago, that somehow the specs for replacement cam blanks, for the oil groove, were incorrect & too shallow. In his advertising specs he states that his cams have the oil groove spec depth corrected.   


Paul


Reading This Topic


Site Meter