How to pin cam bearings?
How to pin cam bearings? I am going to have my engine block out and changing the cam out, so I figured I'd take a preventative measure and pin the cam bearings as well. However, I for some reason can't seem to find any previous threads that really describe this process.
Any help?
Thanks
Any help?
Thanks
how much spring pressure are you going for? its usually reserved for big power big cam NA guys
anyways you can drill down through the valley for the middle bearings and go at a slight angle for the end bearings. tiny little set screw like an 8-32 or something.
anyways you can drill down through the valley for the middle bearings and go at a slight angle for the end bearings. tiny little set screw like an 8-32 or something.
Why and how would you want to "pin" the cam bearings? Are you concerned about them coming out? If you use the correct set of cam bearings for your block then it shouldn't be an issue, they fit very tight. If you need the added assurance then use Loc-Tite stud and bearing mount (green colored).
This isnt a small block chevy. Just use a good set of durabond bearings to fit your block (there are 2 separate types depending on year) and have no worries. The only real reason an ls bearing would spin is due to severe abuse and a very very bad oiling issue. Ive seen one in 8 years. It was a 5.3l that had oil pressure issues.
http://www.ws6project.com/user_stor/catalog/index.php?cPath=235_87_555&sort=3a&filter_id=296
The P series are the heavier duty ones.
http://www.ws6project.com/user_stor/catalog/index.php?cPath=235_87_555&sort=3a&filter_id=296
The P series are the heavier duty ones.
its not a terrible amount of work to pin them, but it's totally unnecessary with any sort of sane cam that can be street driven.
if you are running cam that needs like 250# seat pressure and 750 on the nose, then i'd pin them.
roller bearings imo are much more trouble than they are worth on most everything. if your application needs it, you arent asking the internet about pinning a stock block.
if you are running cam that needs like 250# seat pressure and 750 on the nose, then i'd pin them.
roller bearings imo are much more trouble than they are worth on most everything. if your application needs it, you arent asking the internet about pinning a stock block.
Trending Topics
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
6 Common C5 Corvette Failures and What's Involved In Repairing Them
Pouria Savadkouei
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph
Verdad Gallardo
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked
Pouria Savadkouei
Top 10 Most Powerful Chevy Trucks Ever Made!
Hennessey's New Supercharged Silverado ZR2 Has 700 HP
Verdad Gallardo
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes
Verdad Gallardo
Awesome K5 Blazer Restomod Comes With C7 Corvette Power
Verdad Gallardo
10 Camaros You Should Never Buy
10 LS Engine Myths That Refuse to Die
Verdad Gallardo Fwiw there are some guys on yellow bullet that still do this type of stuff...maybe ask over there for more guidance
well you want the new bearings in the block
then you check their fit with the cam youre gonna use.
then you drill the holes and tap them and put in a set screw. you want it to be below flush of the bearing surface, just enough above the block bore surface to grab some of the steel backing of the bearing.
then check the fit again, sometimes them distort a little.
but again I gotta say there really isnt much use for it. if you need high spring pressures for a big aggressive hydraulic roller, just get an 8620 core so it doesnt flex and spin the middle bearings.
then you check their fit with the cam youre gonna use.
then you drill the holes and tap them and put in a set screw. you want it to be below flush of the bearing surface, just enough above the block bore surface to grab some of the steel backing of the bearing.
then check the fit again, sometimes them distort a little.
but again I gotta say there really isnt much use for it. if you need high spring pressures for a big aggressive hydraulic roller, just get an 8620 core so it doesnt flex and spin the middle bearings.
Drill holes with them (bearings) in place? I don't think that's possible to get a straight shot onto the area where it would need to be and if you go drilling an angled hole into your bearing surface your going to end up with a cobbled mess, the head of the "set screw" would have to be below the bearing surface. Loc-Tite makes adhesives for this.
Drill holes with them (bearings) in place? I don't think that's possible to get a straight shot onto the area where it would need to be and if you go drilling an angled hole into your bearing surface your going to end up with a cobbled mess, the head of the "set screw" would have to be below the bearing surface. Loc-Tite makes adhesives for this.
Just how thick do you think those cam bearings are that you can run a set screw into it? Can you show an example of this ever being done? By anybody? You know, drilling all the way through the main saddle. Do you know of a sponser on this site that offers that offer this? That's just B.S.
TECH Resident
Joined: Apr 2014
Posts: 985
Likes: 12
Just how thick do you think those cam bearings are that you can run a set screw into it? Can you show an example of this ever being done? By anybody? You know, drilling all the way through the main saddle. Do you know of a sponser on this site that offers that offer this? That's just B.S.
Just because you are not familiar with something does not mean it doesn't
exist.
They never offered any such thing. Please show a link to that service or a link where anybody's build on this site where this proceedure was done and I'll eat crow and take it back, I call B.S. Who is going to drill holes in their main saddles, the holes would counter bored to be bigger than the set set screw, the bearing would have to have a precise depth hole drilled in it and be aligned, this sounds like a great deal of work and, well, B.S. Once again, Loc-tite makes an adhesive for this purpose. Show the link, any link and I'll correct myself.