[deegee]

So...

My GQ is just shy of 400,000 still pulls well though, uses a tad more oil that it probably should (but only a tad)

Power is probably down a little but it could use some injectors...

My Q is its about to go off the road for a bit of a chop and while its off I want to pull the motor out because it needs another clutch (yes again) and a rear main seal.
While the motor was out I thought it would be a good idea to get the block lightly honed and throw some new rings on to keep the bus strong for a few more years. Will most likely get a turbo as well but nothing crazy, just to help me get it bus up some of those hills.

Can this light rebuild be done? Or is it a big no no...

I will be doing this myself.

 

[A4B]

As you are going to keep the car (and maybe turbo it), i can't understand why you would consider to have the engine that far apart, and then NOT doing the bearings ?

 

[deegee]

I guess im just unsure when i can stop but still have achieved something...

I can pull it down and throw some rings on and bearings and slap it back together, but then while its apart I could do new rods/pistons as well... then go on to a hardened crank... do some head work while its off...

I could do a lot... But i don't want to spend the cash in short... (i'm about to start building a track car which will take up a lot of my time/cash
But i don't want to just do the top end and not really achieve anything...

I guess my question is, can these be top end rebuilt and it be worth doing or do they really need a full rebuild?

 

[sutto]

i look at this way you will need to undo the rods from the crank anyway to change the rings so you may aswell change the big ends, main bearings would be good but not a big deal.
however you will get away with doing just the rings and a hone but you would be be pretty pissed off if you turboed it and in six months your big end bearings drop there guts. not to mention gudgen pins. im not to sure with the TD42's wether or not they have a fiber seal or a rubber seal(rear main) but if fiber you may have to pull the crank out to replace that aswell.

 

[deegee]

rear main is rubber, you can nearly get away with just pulling it out, have to take off the sump...

I think the go might be to exchange my motor for a rebuilt unit...

I think thats the go...

I think around $4k and i know its all been done...

 

[Troyyyy]

measure everything to make sure u get the right bearings, rings etc. get it honed? do it your self mate it aint hard at all, hone kits go straight on your electric drill. its really not that much to it once you get all the jewelry of the front of the motor. i rebuilt my last hilux after hydraulic lock which was a diesel. and if the motor is goin to be completly removed that would be so much easier. the hilux only cost me 500 to rebuild and that was valve regrind kit, rings,bearings andnew no.3 rod but im guessin it may be a little bit more for a trol. still alot cheaper then a reco