DFASTEST951

Get in touch with Evil944t, Dave McGrath. He can make what you need.

Geneqco

LR have just released a delete kit... that would be one option:

http://www.lindseyracing.com/mm5/mer...=BALANCEDELETE

ehall

DAMMIT Joe! Get a transmission already!

Oh, and yeah, Dave can probably help you out nize.

brad-cam

Just a wild shot - I reassembled one of these motors (the covers did match the block) and couldn't turn the balance shaft. When I checked it carefully, I realized that the balance shaft had been tweaked during shipping of the block to me. The shafts stick out so they must have dropped it or pushed it up against something. Not sure about the history of your engine, but be sure the shafts are absolutely true.

nize

the shafts are coming out of my original engine (and going into this donor engine), so i know they are true.

if the matching covers can't be located, it looks like i have two options;

1) re-bore the block's balance shaft tunnels with these mis-matched covers installed so they'll match (would probably require oversized bearings? how does this work?)

2) run without balance shafts, which is not advised on a street car, especially one with a bored motor.

pulling my hair out here now. blah.

cruise98

Nize:

There are oversized bearings/bushings available, but they are for shafts that have been turned down to an undersized diameter, not for a thicker bearing bore diameter.

You will have to re-surface the covers and rebore the bearing locations. Also, the bore at the block/cover mating area where the front b.s. housing fits will have to be dealt with to be sure it is centered with the rear bearing so the shaft will run straight.

It is not really that complicated, but the machinist must know what he is doing, and have the correct boring equipment.

fortysixandtwo

The machine shop you used should be able to machine the covers to match the block. It's a shame that you have to pull it appart again to do the machining.

evil 944t

+1

As I said in my pm,

"The covers would need to be decked, possibly the block, and then you would have to line bore them. I'm assuming the block is assembled so, that would mean you would need to take it back down and then it would have to be re cleaned etc..

I'm sure the machine shop that did your work, could do this for you. "

You don't use oversize bearings as your changing the block and BS covers line bore/dimension not the BS diameter.

nize

i figured out how to get them to fit better. re-assembly is progressing again. more info on fitting here;
https://rennlist.com/forums/944-turbo-and-turbo-s-forum/396772-balance-shaft-torque-confirm.html

thanks for everyone's suggestions!

nize

assembled !

nize

nize

333pg333

That's quick work!

blown 944

very nice

nize

car runs and sounds great! will post dynos as soon as it's broken in.