Big end bearing & Reground crank

[Carlv8415]

As far as I am aware my 182 engine has spun a big end shell. Getting a new engine put in next week so all good.

I have decided to keep the old engine and rebuild it as a spare (Might make a forged build), Getting to the point as far as the crank is concerned is it worth buying a new one or getting the originals reground? If I get it reground where about's can I buy oversized shell bearings or just standard shells? I see they do some on KTEC but I was just after a standard set, I have looked on a couple of sites quickly but could find some for every engine bar the F4R.

Thanks

 

[1uk3m4n]

If you send me a pm I can price this for you I have all the machines to grind the cranks in house and can supply bearings I'm in thanet so would need the crank either sending down or you could deliver them

Cheers Luke

 

[1uk3m4n]

Just looked can grind the crank for £120 and bearings go up to. 25 so would need to see the crank to make sire it can be saved

Luke

 

[Andyman]

Strip the engine down and take the crank and pistons to a machine shop to be measured. They will tell you what size of shells you need with in factory tolerance or if the crack etc is too far gone

 

[Carlv8415]

£120 to be reground, how much are they new or can't you buy a second has one but I suppose the crank wouldn't marry up to the new shells ?

 

[1uk3m4n]

You can buy new if you want or even a good second hand one. I can get prices for you but it is normally best to grind your own

 

[Carlv8415]

You can buy new if you want or even a good second hand one. I can get prices for you but it is normally best to grind your own

How much for a new one with shells? Also could you use a second hand crank with new shells ?

 

[Andyman]

Guessing you didnt read my post mate?

 

[1uk3m4n]

I'll grab a price for New crank and New shells. Yes you can but need to measure the second hand crank and buy shells to suit it might have been ground in the past

 

[Carlv8415]

Guessing you didnt read my post mate?

Oh yeah sorry mate must not have registered will consider taking mine to get reground then, hopefully it isn't to far gone

 

[1uk3m4n]

If your not to far pop it to us if not could always send it along would be able to yell you pretty quick if it's no good

 

[Carlv8415]

If your not to far pop it to us if not could always send it along would be able to yell you pretty quick if it's no good

Where about's are you based ?

 

[1uk3m4n]

We are in ramsgate Kent

 

[Fred@BTM]

don't do it, it'll never last, trust me

 

[1uk3m4n]

If they have not lasted for you something must be done wrong if machined properly and built well then they will last longer than the car

 

[Fred@BTM]

You would think but I know these F4R's better than my own willy, F4R with reground crank will go pop

 

[Dan519]

I think that's going to be more down to not replacing oil pump after a big end failure. There's no good reason for a regrounbd crank not to work absolutely perfectly

 

[1uk3m4n]

That's weird cos we have done loads and all been perfect if done properly and machined well they will be fine.

F4r inside is the same as any other engine there is no reason it should knock out a crank after grinding. How do you think New ones are made?

 

[Carlv8415]

Might just buy another bottom end and bolt it to the head I got. sounds a lot cheaper and easier

 

[1uk3m4n]

If you do have it stripped and re built as you can never tell what your buying if it's second hand