Help! Need pic of alternator/pulley on Eaton swap

[65DOHCStang]

I've put the Eaton on my motor using Gorsuch's brackets but my alternator doesn't line up right. The alternator is an 01 Cobra, which looks like the same dimensions as the MM alternator. I used the F5OY-10344-F alternator pulley. But my belt is about 3/16" out farther from the timing cover than it should be.

I need to determine whether I have the wrong pulley, the alternators really are different size, or if I have something else wrong.


Thanks.

[Zack]

It would be a lot more helpful if you posted pics of whats going on.

If it makes you fell better, my belt is further away from the timing cover on the drivers side than the passenger side.

[65DOHCStang]

What is happening is when the belt comes off the alternator, around the idler, it has to come back in to hit the power steering pump. Since it has to come in so far, it is hitting the power steering pulley on the outer edge and squeaking like crazy. It looks like the alternator pulley should be about 1/16" from the timing cover (Terry Gorsuch says his is .060 from the timing cover).

You can see in this picture that the pulley is .285" (over 1/4") from the timing cover. (This is the picture I'm looking for on the Marauder alternator).

http://carphotos.cardomain.com/ride_images/3/1885/3501/29711750253_large.jpg

Here you can see the misalignment (looking down on the water pump).

http://carphotos.cardomain.com/ride_images/3/1885/3501/29711750252_large.jpg

[Zack]

I know Terry made a revision to the alternator brcaket since i bought the first ones produced.
Do you have the bracket with 'legs' on the right hand side, or does yours slide over the studs in the timing cover and bolt on with nuts?

[65DOHCStang]

My bracket has legs that bolt to the timing cover with long bolts (110 mm I believe).

[Zack]

My suggestion is to call Terry and verify the correct measurements of the legs.... or just take the bracket off and make the necessary adjustments to the legs.

Either way report back.

...you dont have spacers between the legs and the timing cover, do you?

[65DOHCStang]

I don't have any spacers on the legs. If I trim the legs down, the idler will hit the timing cover. It is about 1/16" from the timing cover now, so I think the bracket is correct. Does the alternator pulley look like it fits the same as with the Marauder alternator? If it does, I'll try to get a Marauder alternator. Maybe the Marauder is deeper than the Cobra alternator by 1/4" (though they look the same from pictures).

[Zack]

Are you sure you installed the alternator pulley the correct way?

[65DOHCStang]

Are you sure you installed the alternator pulley the correct way?

It will only go on one way.

[Zack]

Good luck in the fix, im dying to know what the problem is.

[Zack]

Try to see if you can get a Marauder owner to get a dimension of the thickness of the alternator bottom, where it slides over the bolts.
Then compare it to yours.

Id help but my MM's are not accessible right now.

[tjl006]

1 3/16 is the thicknes of the alternator were it goes over the bolts

[FordNut]

The lip of my pulley is about 1/8" from the timing cover, the edge of the belt is about 1/4" away.

[65DOHCStang]

I had the parts store get me a rebuilt alternator for a Marauder to measure. Assuming it is actually a Marauder alternator case, the critical dimensions are identical to my Cobra alternator. The only possible difference is the shaft may be longer on the Marauder, thus moving the replacement pulley away from the face of the alternator and closer to the timing cover.

Does anyone have a picture of that (as shown in my first picture) or a measurement? (Even a guess.) The pulley on mine fits pretty flush with the face of the alternator.

The critical dimension is the distance from the tab that faces the bracket to the end of the pulley. On mine it is 1.63" (as shown in the picture).

Thanks for all your help. I'm about 99% done with this thing and ready to roll!

http://carphotos.cardomain.com/ride_images/3/1885/3501/29711750254_large.jpg

[tjl006]

1 11/16 is about the distance

[65DOHCStang]

1 11/16 is about the distance

That's very close to what I measured, and the lip of the pulley might be a little different.

Does your pulley sit flush against the face of the alternator?

[tjl006]

Yup pretty much flush

[Zack]

Lets rule the bracket out....


Take a measurement from the top of the bracket to the timing cover.
Then take a measurement from the bottom of the bracket to the timing cover.
The 2 should be identical.

[65DOHCStang]

I measured the bracket from the face that meets the alternator to the timing cover. It is 1.92" all the way around. I am using an 03 Marauder timing cover.

[65DOHCStang]

Terry said he used a pulley from an 04 F150 on his. I got one from the Ford dealer and it looks like that's the ticket. It moves the belt out about 1/4" farther from the alternator (closer to the timing cover). I'll put it on in the morning but I think it will do the trick. The PN for the pulley with Gorsuch's brackets is NOT F5OY-10344-F. The correct PN is F5AZ-10344-A (Motorcraft GP-712). At least that's what works on my setup (and his).

Thanks for the responses. This forum has been a big help with my install, especially all the pictures.

[tjl006]

looks great man!! Its an 01 cobra motor?

[bawazir]

http://carphotos.cardomain.com/ride_images/3/1885/3501/29711750249_large.jpg

Plain Jane: http://www.cardomain.com/ride/2971175[/quote]



sweeeeeeeeeeet ride :2thumbs::trophy1::trophy1::tr ophy1:

[swordfish]

good looking car. hope the new pulley works. keep us posted.

[65DOHCStang]

looks great man!! Its an 01 cobra motor?

Thanks. Actually it's a 'Frankenmotor' - Teksid block, 01 Cobra crank, Manley rods, Mahle pistons (10.5:1 compression), 01 Cobra heads and cams, polished intake bowls, Comp Cams valve springs & retainers, decked, line honed, balanced, bored .020, MMR oil pump, Canton windage tray and pan, ARP head and main studs, 60 lb injectors, dual Walbro 255s, 04 Cobra aluminum flywheel, 2 1/2 X pipe (no cats) - the usual stuff. It will burn E85 due to the high compression and Eaton.

[FordNut]

Looks nice. Mustang II rack & pinion conversion with shaved shock towers?

[65DOHCStang]

Looks nice. Mustang II rack & pinion conversion with shaved shock towers?

Yes, it's a Heidts Mustang 2 kit.

[DTUB]

Can you space the pulley out to make up the difference and whats going on with your IAC valve?

[65DOHCStang]

Can you space the pulley out to make up the difference and whats going on with your IAC valve?

The pulley for the 04 F150 should take care of the belt alignment. I'll know later today for sure but comparing the 2 pulleys, it looks good.

I had to make a remote mount for the IAC to shut the hood. Everything fits under the stock flat hood except for that, so I moved it behind the plenum. At first, the 90 deg fittings were restricting airflow and it made a huge sucking sound through the air filter (acting like a whistle). I cut back the threads on the barbed fittings and drilled out the 90s a little larger and it works okay now.

[Zack]

First off, the car is amazing!

Thats really all I got. AWESOME!

[65DOHCStang]

Great news! The F150 pulley (F5AZ-10344-A, Motorcraft GP-712) put the belt right where it needs to be - no more squeaking belts. By the way, if you ever put a new pulley on your alternator, don't use the high-temp red thread locker - it really works! I had to cut the nut off with a cutoff wheel. I went blue this time.

Thanks for your help, and comments about Plain Jane. Thanks to Zack. Between his pictures and posts, and Terry's help, I didn't have much trouble with this project (except that the 96-01 Cobra balancer won't work - need a Marauder balancer, and the right alternator pulley).

[Zack]

I have to ask... when using the other idler, did you make sure to install it backwards?
That could have been your trouble.

[65DOHCStang]

I have to ask... when using the other idler, did you make sure to install it backwards?
That could have been your trouble.

By other idler, I assume you mean the one on the alternator bracket. I installed it like the picture in this post - round side out.

http://www.mercurymarauder.net/forums/showthread.php?t=58092&page=2

All is working well now. The F150 alternator pulley moves the belt away from the alternator. That's the pulley Terry said he used when he designed the brackets. I found the other pulley PN on a thread on this site but that must have been for the Trilogy brackets.

[gortch]

I think this has all been resolved but for others who may view this is important. When I origionally made my brackets for my car I made the brackets so you don't have to grind the Alt. to clear the Alt. and to get the belts to line up using a laser pointer I used a Ford 04 F150 pulley that's sets Approx. 3/16" from the Alt and approx. .060 away from the front cover. Since I hadn't received any questions indiciating any problems I had forgot about the pulley differance.

The part number for the pulley is (F5AZ-10344-A, Motorcraft GP-712).

[Zack]

I still dont get it.

On the 2 swaps I did on my cars, I just relocated the smooth idler on the timing cover to the alternator bracket.
Never had a problem.

Im assuming the brackets I have are identical to yours Terry, correct?

[65DOHCStang]

The pulley he's talking about (and I was talking about) is the grooved pulley you replace on the alternator.

[gortch]

I don't know if the brackets that you are using are the same as mine unless they are the ones you bought from me. When I made mine I didn't have anything to go by except pic's so I made brackets and made everything to line up. As far as the idler on the alt. bracket that should be the same. But the pulley on the Alt. is 04 F150 and it sets out about 3/16th" I did this when I lined everything up with a laser pointer and that is what it took to line everything up.

[Zack]

It makes sense now.
The pulley you used is the one Ive been using all along... the exact part # I sent you in the beginning straight from the Trilogy Manual.

[ImpalaSlayer]

It makes sense now.
The pulley you used is the one Ive been using all along... the exact part # I sent you in the beginning straight from the Trilogy Manual.

im still confused lol. i too used the one in the trilogy manual

[Zack]

im still confused lol. i too used the one in the trilogy manual

I wish I could post the manual here but its too big.

[ImpalaSlayer]

I wish I could post the manual here but its too big.
bananas..........

[jdenning002]

Is that a custom crossover tube in the pic? It looks very simialr to the 03/04 cobra tube...