txh0tb0i972

iTrader: (63)

Can you have these turned? I had a bad experience with a builder and he didnt tighten 2 rod bolts and one we caught and the other was broke off! Any who, it put a knick about the size of a ball point pen and some light scuffings. I just want to know what your guys opinions on turning one of these 10 over or possibly welding it and have it cleaned up. I know some people don't recommend turning it and just looking for options!

KCS

iTrader: (20)

It's fine, go for it.

TA6spdRDC

iTrader: (2)

ive heard its not a good idea.

Gray86hatch

iTrader: (83)

If they are telling you they can't turn it find a new machine shop. I would not even let them think about welding it if they cant turn it.

Tim

txh0tb0i972

iTrader: (63)

of course its going to get check out at the machine shop... the shop its getting built at said its fine but some people i talk to said no dont do it! just trying to get some opinions !

KCS

iTrader: (20)

Some people keep regurgitating what they read on the Internet about the nitriding being taken off, thinking that the crank will somehow come apart without it. In the real world, it's been done over and over again on cranks that have seen over 1000hp. Turning the crank .010" is no big deal.

txh0tb0i972

iTrader: (63)

I did a bit of research on here but didnt really get a real answer, so thats why i made a new post... but i appreciate the info ive been getting so far.... Also im sure you have seen my post in the texas section

Callies Performance

PM Sent

txh0tb0i972

iTrader: (63)

txh0tb0i972

iTrader: (63)

Shop told me they fixed it but have to turn mains 20? is this fine? where can i find main bearings turned 20 over?

Gray86hatch

iTrader: (83)

ALC. Has .020 bearings for it.

Tim

txh0tb0i972

iTrader: (63)

on the acl bearings i can use those with this crank correct?

I know its suppose to use a ceramic coated bearing or whatever...please correct me if im wrong

Gray86hatch

iTrader: (83)

http://www.aclperformance.com.au/us/...Bearingsus.htm

You could send them out and have them coated

Mine are not it is not something you have to do with any crank. It provides a little protection but it is not going to save you if you have issues.

Tim

txh0tb0i972

iTrader: (63)

I wonder why people state that you have to use the coated bearing(ex. clevite H) if you want to run a forged crank/rod

Gray86hatch

iTrader: (83)

I have no idea. They like to spend your $$

Texas speed uses acl in their crate 418 with callies cranks. I have a eagle in mine.

txh0tb0i972

iTrader: (63)

Nice to know! I will more then likely go with those then! thanks for your help...


Also do you see any issue with the crank being turned over 20 on the main journal side?

Gray86hatch

iTrader: (83)

Mine is .010 on the rods and .020 on the mains

Tim

ausls1

mines possibly getting turned and getting .010 as a lot of machine shops here have found some problems with the cheaper chinese made cranks and matching bearings even if they state finished in America, most are like Scat cranks but there having that many like this they recommended it. It also takes them longer matching up x-amount of different bearing sizes compared to just turning them to suit a set of bearings from the start.

There going to check them first and make sure there all ok then give me the option of turning them if one or more are off or if ok then not having to turn them.
And there not the only machine shop here that have mentioned this too me as well as shops selling the bearings.

txh0tb0i972

iTrader: (63)

got it fixed!
here are some pics of it damaged and repaired

txh0tb0i972

iTrader: (63)

Here is the journal that was damaged