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tggrounds 01-13-2006 11:58 AM

water pump pulley hits harmonic balancer
 
Has any one had to pull the hub on the water pump forward that the water pump pulley bolts up to about 3/8 " to clear the harmonic balance on a 454? This is my first boat and I have been restoring for almost two years It is a 1980 24' pantera. I would like to send a pic and see if some one can fined something wrong with it. I am trying to get it in the water this June put have a lot of other snags.

Thanks Todd

88Fount33 01-13-2006 12:04 PM

Re: water pump pulley hits harmonic balancer
 
Once on a small block, I found that the balancer was not pushed back onto the crank all the way to the seat. If felt as if it were bottomed but it really wasn't, removed it and checked and found that it was hanging up a little bit. When it bottomed it was fine.

tggrounds 01-13-2006 12:12 PM

Re: water pump pulley hits harmonic balancer
 
Did that twice. all the parts are new and was told they should work.

offshoredrillin 01-13-2006 12:17 PM

Re: water pump pulley hits harmonic balancer
 
GM has long and short snout water pumps, you may have the wrong water pump, or the wp pully may not be the right one.

bobbarker 01-13-2006 12:20 PM

Re: water pump pulley hits harmonic balancer
 
88fount33,
Make sure you have the correct harmonic balancer for that engine.

ratman 01-14-2006 04:42 AM

Re: water pump pulley hits harmonic balancer
 
do you have a grinder? jes kidn, are you sure you have the correct balancer? there are several different od balancers avail.

cuda 01-14-2006 06:36 AM

Re: water pump pulley hits harmonic balancer
 
It happened to me one time. Luckily, I had a smaller pulley that cleared it fine. Later, I found the original pulley was warped.

88Fount33 01-14-2006 07:17 AM

Re: water pump pulley hits harmonic balancer
 

Originally Posted by tggrounds
Has any one had to pull the hub on the water pump forward that the water pump pulley bolts up to about 3/8 " to clear the harmonic balance on a 454? This is my first boat and I have been restoring for almost two years It is a 1980 24' pantera. I would like to send a pic and see if some one can fined something wrong with it. I am trying to get it in the water this June put have a lot of other snags.

Thanks Todd

Also, if the balancer is in the correct location, it will be extreme close to the timing cover, like less than 1/8 " away.

FloridianSon 01-14-2006 02:48 PM

Re: water pump pulley hits harmonic balancer
 
Yes I did .checked everything that the group has said.talked to marc at bam then used a puller and moved the pully out.No problems.

tggrounds 01-15-2006 08:22 AM

Re: water pump pulley hits harmonic balancer
 
Was the tit on the center of the hub still going threw the center of the water pump pulley?

Tried to send a pic but picture size was to big.

FloridianSon 01-15-2006 03:57 PM

Re: water pump pulley hits harmonic balancer
 
Yes on mine there is still some shaft left.My thought is the person at the factory that builds the things had a good lunch and had to much vitamin M for desert which can cause any thing from a slite mishap to a full blown FUBAR.I don't know. :drink: I do know that one monkey don't stop no show.James

tggrounds 01-22-2006 11:31 PM

Re: water pump pulley hits harmonic balancer
 
1 Attachment(s)
Do these pulleys and brackets look like they could be right ? For a 454 and what pulley runs the sea pump.

1BIGJIM 01-23-2006 06:55 AM

Re: water pump pulley hits harmonic balancer
 
Mine looks exactly like the setup above. I will tell you from experience that you must take the water pump pulley off if you pull the balancer. I did not realize until I bent the pulley and the shaft on the water pump. :(
The clearence is real close, like mentioned 1/8 of an inch.

tggrounds 01-23-2006 10:06 AM

Re: water pump pulley hits harmonic balancer
 
On yours what pulley runs the sea pump?

1BIGJIM 01-23-2006 12:33 PM

Re: water pump pulley hits harmonic balancer
 
Harmonic balancer.

tggrounds 01-23-2006 12:59 PM

Re: water pump pulley hits harmonic balancer
 
Is it the middle one on the balancer.

Dangerous Dave 01-23-2006 01:21 PM

Re: water pump pulley hits harmonic balancer
 
Is there a specific reason you are not using a crossover instead of the recirc. pump?

tggrounds 01-23-2006 04:40 PM

Re: water pump pulley hits harmonic balancer
 
I was told by the machine shop that it would be more reliable and keep an even temp through out the block. The guy I'm talking about built motor's for Outerlimits. What do you think ?

FloridianSon 01-23-2006 05:19 PM

Re: water pump pulley hits harmonic balancer
 
My .02 double check everything again,if all else fails pull the hub out just enough to get your clearence.Stay away from the Xover in till you put on the blower.Buy you friend at Outerlimits a beer :drink:

Dangerous Dave 01-23-2006 06:01 PM

Re: water pump pulley hits harmonic balancer
 
I see your point about the recirc pump, just don't run too high of a thermostat temp in salt water. Looks like you're putting together a nice piece. I hope you post some pictures when it's done. My good friend has a 24 Pantera he keeps at my place for the winter. I think it's a much more fun ride than my 28 Cigarette. Good luck.

mopower 01-23-2006 09:11 PM

Re: water pump pulley hits harmonic balancer
 
Your bottom pulley looks different than mine. My balancer pulley has three grooves with the center on being the smaller one that drive the seawater pump. The inside one does the alt. and circ pump the outer does the p/s and circ. pump.
The center groove of the circ. pump pulley remains empty.

tggrounds 01-23-2006 10:39 PM

Re: water pump pulley hits harmonic balancer
 
Yea that makes sense I'm going to get that 3 grove crank pulley.


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