Alternatives to elec. water pump for 4k rpms?

G

getblown5.9

Ceritified Kleenex Dealer
Joined
Aug 3, 2006
Messages
7,259
I will be running a redline this season hopefully, and I am prepping for the 4k runs on the pulling track.

Right now I need an alternative tot he electric water pump to prevent blown freeze plugs. Can you take out the thermostat? drill through it so pressure can bypass it, do I need to replace the rear freeze plug with that recirculating kit/return line??

I've heard of clipping the pump fins, but my pump is weird, it has a flat cone like piece welded to the end of the fins.
 
You can trim the water pump down. I would drill a few small holes in the thermostat also though. Unless your turning 4000+ you shoudn't need to do much though. I have seen 4500 and the freeze plugs I have blown are in the head. I don't think mine is an RPM issue, it is a heat issue. Only happens on a long spool, or during a pull off. The first hook the tranny is cool, taking heat out of the engine, the second the tranny is sitting around 200, so it is putting heat in the engine. With the drilled thermostat, the truck doesn't heat up idling though. Even when it gets warm, probably back to 140 in like 3 mintues of idling. Which is good. I have an electric fan cooler to put on the tranny to help that out.

All of the pumps are like that. It is one of the reasons at the high RPM the pressure rises. The cone makes it more effecient of a pump. I ground the tips off above the cone, I think. Post a pic of your pump, or if I find my pump at home, I am sure when I see it It will come back to me.
 
Clip the fins and put the kit in the back of the block. I did my kit with the tranny in but my exhaust was off so it was easy for me to reach around to tighten the bolts up. I you want too I got my stock water pump if you wanted to pay shipping you can have it to test the waters mine isnt cut but you could give it a shot.
Brandon
 
ok well since its easy to do, i will keep a spare t-stat that is drilled for pulling season in the summer, as long as the engine is at least 140* when I pull, its warm enough for me to not worry about the HG. and I will clip the fins back some.

whenever I have to pull the tranny this year to rebuild my clutch, I will do the water circulation kit.
 
You might play with the holes. I let my truck idle in gear to build some heat in it. I like it to just start to move the temp gage. I think I had (3) 3/16 holes. You might just do (2) 3/16". Being you don't have a good way to sit and build head in the engine with a manual. I guess using the A/C could work.
 
So what are these "kits" you guys are talking about and where can I find them. I got a few friends with CR's having the same problems about blowing either freeze plugs or radiator caps off going down the track. Just wondering what we could do to prevent that from happening agian, and on my truck when I start pulling this year. Thanks
 
Check this out:
http://www.turbodieselregister.com/forums/5-9l-engine-transmissions-2003-2007/193797-blown-freeze-plug-replace-use-plate-use-enterprise-pressure-system.html

Here is the kit I got from EEP for the 12 valve:
Ad_174_14.jpg


and I did the water pump with a dremel tool:
Ad_202_13.jpg
 
hey getblown5.9, I believe if ya get a cummins water pump it does not have the cone. reason I say this is when we get a water pump from the parts store it has the cone and the oem(cimmins) does not...But I could be wrong.
 
now that i think of it, my OEM didn't have the cone, and my napa replacement does have it
 
I made a new pulley for the water pump to slow it down. So at 4500rpm the pump thinks it spinning 3200rpm. I have had it done for over a year now and no blowen plugs. I will take some pics tonight and post them later.
 
BigDodge said:
I made a new pulley for the water pump to slow it down. So at 4500rpm the pump thinks it spinning 3200rpm. I have had it done for over a year now and no blowen plugs. I will take some pics tonight and post them later.
Click to expand...

How does it do for cooling spinning at a slower speed?
 
I had to put card board in front rad to get heat. And in the summer it will get to 190* all day long here in AL.
 
I was looking at making a innerference fit ring of a larger diameter to slow the pump down or get a complete pulley made.If you do the pulley you would have to press the pulley on & off the shaft which would be more of a task than a ring you could heat & slip on with some loctite race retainer on it.
 
i am in the process of clipping my water pump and I have removed the cone like piece on top which should help make it less efficient, and i was gonna clip 2 fins when I noticed that instead of 4, I have 5 and by clipping 2 it will be out of balance...is this an issue?

can anyone tell me if something as small and light as the water pump will have an issue with being out of balance?

or should I just grind all 5 fins down to make them pump less water?
 
Any one got a pic of a larger pulley or possibly a collar that fits over the factory pulley to make it bigger?
 
Good thread TJ, I never heard of this issue. I have a Dozer with a Cummins & the pulley on the waterpump is bigger than the one on my truck. This would slow the water pump down.
 
You must log in or register to reply here.
Back
Top