rebuilding KA have some questions
rebuilding KA have some questions
hey everyone...first time posting..have a couple of questions.First looking at rebuilding a KA motor. I have read some much info from everywhere my head is about to expode.. I was wondering if having the stock crank polished would be good enough or should a new one be put into order. Second... will having the stock crank and rods polished/reconditioned will require a different size bearings or will factory new bearings be fine..THird what is Cryo-treated stock Rods... will stock rods be fine (looking at around 250 to 300 HP)Should the head be reworked??? like 3 angle valve job stuff like that...well I will start off with these questions then move on to more once these are answered. thanks again to everybody in advance.Chris
Re: rebuilding KA have some questions (memole)
I may be no expert but I'll try...
1. I think the stock crank will be ok
2. With your power goals you should(might) be ok w/stock rods but that is the limit
3. You may need different sized bearings, talk to Fiznat about it I remember reading a post that he went inot detail about bearing sizes
4. Welcome to Nico!
1. I think the stock crank will be ok
2. With your power goals you should(might) be ok w/stock rods but that is the limit
3. You may need different sized bearings, talk to Fiznat about it I remember reading a post that he went inot detail about bearing sizes
4. Welcome to Nico!
Re: rebuilding KA have some questions (dft24ds)
Cryogenics is a pretty interesting subject. When metal is cooled from a liquid to a solid, the molecules inside slow down (and contact) and thus the liquid turns into a solid. By further cooling the metal the molecules slow down even further and releave a lot of the internal stress/motion caused during the cooling down stage. A lot of orchestrial brass players have their instruments cyrogenically frozen for this reason. There's a lot of places that cyro stuff as the materials are more readily available.
I've wondered about applying this to automotive parts for some time now but never came to the conclusion as rods, transmission parts, etc.. are all super heated within the engine. So I'm not sure the cryo would actually be that beneficial as you're kinda doing the opposite of the cryo process.
like dft24ds said, you should be ok..... but you never know
I've wondered about applying this to automotive parts for some time now but never came to the conclusion as rods, transmission parts, etc.. are all super heated within the engine. So I'm not sure the cryo would actually be that beneficial as you're kinda doing the opposite of the cryo process.
like dft24ds said, you should be ok..... but you never know
Re: rebuilding KA have some questions (grimple1)
OK then that answers a few questions. will the stock head be ok??? or do I have to get all new retainers and valves???? I know I have to have it cleaned up and probably decked to straighten it up if there is anything wrong with it. but other than that is there anything else I should have ]done to it will its at the machine shop???? thanks again for the help.Chris