Pat - the Gelscoe bracket puts the centerline of the alternator belt at approximately 5.5" outward from the face of the head. That aligns perfectly with the Ford shorty water pump and CVF pulley. I guess you could put spacers behind it but there is no point to doing that since the entire reason for using it is to provide a compact, low, closely mounted alternator. Also, the lower tensioner bracket has to mount to the lower timing chain cover bolt and I am not sure I see a way to put spacers there. I think your entire conflict is the balancer which establishes all other dimensions for the front of the motor. I studied this in great length before selecting the parts I did for this very reason.
Engine in…..new problems.
- Thread starter Pmccooey
- Start date
I would -
Remove the harmonic balancer bolt and see how far down the balancer hub the crank snout is. It’s likely pretty deep.
Pull that balancer and mic the distance from the crank’s timing chain sprocket to the end of the crank snout.
Mic the hub of the balancer.
Do the math..
That balancer needs to be tight up against that crank sprocket or you’re going to have more problems than belt alignment.
Remove the harmonic balancer bolt and see how far down the balancer hub the crank snout is. It’s likely pretty deep.
Pull that balancer and mic the distance from the crank’s timing chain sprocket to the end of the crank snout.
Mic the hub of the balancer.
Do the math..
That balancer needs to be tight up against that crank sprocket or you’re going to have more problems than belt alignment.
Bill Kearley
Supporter
Short water pump, yes !
Ford made a million different pully offsets for the crank and the water pump.
The bottom pully is way to far out, I'm a little surprised Prestige did this !!
Ford made a million different pully offsets for the crank and the water pump.
The bottom pully is way to far out, I'm a little surprised Prestige did this !!
Howard Jones
Supporter
Is this what you have? Did it come with the engine, and is the flywheel also a neutral-balanced flywheel? Did the engine builder supply the damper and flywheel and balance the rotating assembly together?
innovatorswest.com
6.5" Small Block Ford Internally Balanced 4 Bolt Damper #204 - Innovators West
The #204 Balancer is designed for use in internally balanced SBF engines. The Balancer utilizes the stock late model 4 bolt pulley pattern and the spacing matches the 86-93 Mustang accessory system.
innovatorswest.com
Yes, all built and supplied by Prestige.Is this what you have? Did it come with the engine, and is the flywheel also a neutral-balanced flywheel? Did the engine builder supply the damper and flywheel and balance the rotating assembly together?
6.5" Small Block Ford Internally Balanced 4 Bolt Damper #204 - Innovators West
The #204 Balancer is designed for use in internally balanced SBF engines. The Balancer utilizes the stock late model 4 bolt pulley pattern and the spacing matches the 86-93 Mustang accessory system.
The worst part is they knew it was for an RCR gt40 and after calling them they still said it’s the shortest damper I could put on it. It just confuses me more.
Okay pulled the engine back out today and will get to pulling the harmonic balancer off and see why it’s so far out. I see others that responded to this are using shorty water pumps. I thought shorty water pumps wouldn’t fit in the 40? If they fit I would rather use one than the electrical water pump. Is there a certain model that works? Has to be tight between the pulley stick out and the hose hookup so I’d like to try this now that I have everything out. Appreciate the help again!!!
Pat - here is the water pump. Ford Motorsports. https://performanceparts.ford.com/part/M-8501-E351S. The pump inlet clears the crank pulley assuming you use the correct part and it is spaced to align with the correct crank pulley. I know you have read the ERA assembly manual. Read the entire section they devote to the use of the shorty WP. You will have to solve the crank balancer in order for this to align. Hope it helps.
finally got the damper pulled. It’s an Innovators West # 204 for internally balanced. Here are mic’d measurements -
sprocket to end of crank snout - 1.95”
Balancer hub 2.80”
Randy we have the same engines basically from Prestige I believe (Dart 302 stroked to 363). What balancer are you running?
Pat
I think you might mean @Randy Folsom ….
So from your measurements, you should have .850 from the end of the crank to the face of the balancer hub as installed..
Got my Randy’s confused! I sent him a message. Still trying to get a low alternator bracket which will decide if I need anything. Right now I’m just buying parts when what I really need is that alternator bracket but I can’t get a hold of one.
Ian Anderson
Lifetime Supporter
David Garton
Supporter
Pat, I found an interesting build thread that shows steps to making the alternator bracket and he also made the AC bracket. See ( Franks KVA Build. Page 14 and post number 266 ). Not sure what you abilities are but very good description and pictures. Hope this helps. David
Thanks! I was looking at the diagrams for the original GT40 alternator bracket and have been considering fabbing my own if i can’t get a hold of one. I picked up some aluminum plate the other day in case!! I’ll go through that thread and see what other tips I can gather.
Pat
Realize the bracket (casting) holds the alternator and there is a second fabricated multi-piece lower bracket that is the tensioner. You will have to make both parts. What happened to buying one from Gelscoe? it's a hell of a lot easier.....trust me.
They have gotten back to me but have informed me they are traveling for racing and haven't gotten back further. I may have a line on one hopefully.
Similar threads
