Well, we're at a standstill. It seems the machine shop did worse than we expected, and the clearances on the main bearings on journals 4 and 5 are too far off to risk running. I was wanting no more than 0.0015" and we're seeing clearances at 0.0028" and 0.0032" -- way too large.

I would hesitate to put this motor together if it was just gonna be used for stock power... There's no way in hell it's going to stay that way for my project.

I'm taking the crank into a different machine shop on Monday to have them specially fit bearings. The shop I'm taking the crank to has worked on two of Joel's Starion cranks and several of the higher-powered Eclipse/Talon cranks here in the city. They've never screwed up on the six jobs that I know of, so hopefully I'll be the seventh happy customer.

As for the first machine shop, they're also getting a much larger bitch-out tomorrow as well. I've already yelled at them about forgetting to install the freeze plugs in the block, having the cylinder bores wrong by several 10/1000ths and being late by six days.

I think it's time to ask for at least a partial refund, if not more.

Project will continue on into this coming week. Good thing I have a beater POS 84 Rustang 4-banger that runs on three cylinders to borrow smile.gif

-Red-

 

awesome smile.gif

this machine work your doing... reducing the size of the journals on the crank to match new bearings ??

 

No, at least as much as possible, we're leaving the journals alone. There are bearings available (for a price) that are in 0.00025 gradients (1/4 thousandth of an inch) Using these bearings, a machine shop can size it up almost perfect without having to even touch the journals.

Had the original machine shop done their job right, this would have already been taken care of.

The only time you really want to grind a journal is to remove damage -- and since this is a perfectly ok crank, it shouldn't be necessary.

-Red-