Roush wants my Alum. FE 511 motor

Spoooky · #1 (**permalink**) 12-12-2008, 01:21 PM

"It took it's first breath" according to Todd Andrews at Roush. My motor has been on the Dyno and it getting it self wrapped up to ship back to Phoenix. It will be back in Phoenix next week and in it's resting place by the weekend, thanks to John at Anthem Motors. It will be good to get my Cobra back just in time for Christmas. Nice to see a little chrome and polished aluminum under the tree.

csx4910 · #2 (**permalink**) 12-12-2008, 03:31 PM

Congrats!! That will be one of the best christmas presents I can think of
Ron

csx4910 · #3 (**permalink**) 12-19-2008, 09:02 PM

Tim,
Any word on your motor from Roush? Will it make it here by Christmas?

Spoooky · #4 (**permalink**) 12-19-2008, 09:29 PM

Ron,
My motor has shipped and will be here Monday or Tuesday. Todd has been great. I hope the car is put together by Christmas but realistic with the Holiday probable right after. Good to go so far. One of John's mechanics, Rob Varetoni is going to do the install. With Anthem closed up, he has a shop off of 26th and Bell rd. Just 5 minutes from my home. Roush, according to Todd is going to set him up as an authorized Roush dealer I believe since Anthem is closed. He is a great mechanic and knows the Roush motors and Cobras. Hated to see Anthem close but John has been great with the care of my Cobra and motor the whole way. Rob's shop is going called No Limit Auto.

csx4910 · #5 (**permalink**) 12-20-2008, 07:42 PM

Let me know how he is to work with and how it goes. Hope you get back on the road soon

Woodz428 · #6 (**permalink**) 12-21-2008, 10:18 AM

there was a 2 post exchange on the first page and after reading all the posts it was never revisted, I am interested. Do rings rotate on the piston or not?. I have always worked under the impression that if they do it is minimal, for 2 reasons 1) it would create more wear in the piston/cylinder wall and after pulling hundreds of engines down the wear is usually relgated to the top groove/cylinder and attributed to the heat/ring tension 2) the crosshatch used to seat the rings would act to prevent/restrict rotation. So which is it?? Usually the sticking is the ring sticking in the groove and not expanding on to the wall correctly.

Dominik · #7 (**permalink**) 12-21-2008, 01:18 PM

According to my knowledge, the rings do rotate. But if, or not seems to be secondary. If they stick, they can't rotate - correct. But why did they stick? Was the ring gap to small? Were the rings not plane? Out of round? Or the ring gap out of round?

Has the engine been run too cold? If Roush revvs it high at the dyno and you only cruise at 55 we are looking at vastly different operating conditions, even though the thermostat should balance that out.
However, an aluminium block dissipates heat so much better that you may experience all sorts of heat differentials in the block.

I also agree with Stentor, you should have gotten a new engine right away. Or at least an interim engine to enjoy your car over thanksgiving and christmas.

Dom

DAVID GAGNARD · #8 (**permalink**) 12-21-2008, 07:20 PM

Quote:

Originally Posted by Woodz428

there was a 2 post exchange on the first page and after reading all the posts it was never revisted, I am interested. Do rings rotate on the piston or not?. I have always worked under the impression that if they do it is minimal, for 2 reasons 1) it would create more wear in the piston/cylinder wall and after pulling hundreds of engines down the wear is usually relgated to the top groove/cylinder and attributed to the heat/ring tension 2) the crosshatch used to seat the rings would act to prevent/restrict rotation. So which is it?? Usually the sticking is the ring sticking in the groove and not expanding on to the wall correctly.

Yes, rings do rotate on the piston.......how much, I'm not sure, but I've seen it in a few motors I've built and later gone thru to freshen them up. some motors more than others, I have no idea why, they were all built by me the same way........

I've often wondered why automotive pistons are not made similar to outboard motor pistons, with a "pin" in the ring groove so the rings can't rotate.........

David