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Updates on my cp3 rebuild

7K views 27 replies 10 participants last post by  ThinkBio 
#1 ·
Seals are on their way but could take up to a week to get,this is from a local bearing and seal shop which happens to be a friend of mine,I did find out that the o-rings and seals in the pump are made of Vitron,which I know is also used to make valve seals.
 
#2 ·
Keep on keeping us informed...:popcorn:
 
#5 ·
yes I meant viton
 
#6 ·
I'm almost possitive I figured out the reason for the leak so I ordered some more o-rings today,everything will be here next tuesday.
 
#7 ·
Well, if you think you found it, I guess the next question would be do you think, given where it is coming from, it could ever hurt anything and become more than just irritating?
 
#8 ·
no ak It would never hurt anything,the problem appears to be two different metals steel and aluminum expanding and contracting at different rates and the only thing sealing the pump area is a very thin o-ring about as thick as a piece of spaghetti.If the whole pump was steel like it should be these leaks more than likely would not even exist.on a side note if my theory is correct as temps warm up the leak should go away.
 
#9 ·
Outstanding. Keep us posted. When your done, I'll merge your CP3 threads into one and move it over to the 3rd Gen Tech Articles forum.
 
#11 ·
pictures?????

in my garage
 
#12 · (Edited)
parts are in will be picking them up this morning,got a few thousand thicker o-ring for the pump area,time will tell if this solved the problem. back to wrenching on the pump,my garage photos are full so I don't know how to post more pics unless I delete some.
 
#14 · (Edited)
all the bolts were nice and tight and everything was in place as it should be,and the seals all looked good.
 
#15 ·
well its back together and running better than it has for a while,and my leak is gone,Sorry guys left in a hurry this morning to get the parts before they closed and forgot to take the camera with me.
 
#16 ·
If anybody else decides to approach the leak as I did, feel free to contact me and I can give part no. for the seals I used,that way you can have the parts on hand and do the job in one day.I used a 2 thousand thicker o-ring around the pump and 1mm larger o-rings around the six passages.
 
#18 ·
I would also like to get your list of parts and source. Keep it on hand should I ever need it:fist:
 
#19 ·
1- Harwal-25x37x7 shaft seal- lip type A-material Fpm
1-Harwal-25x36x7 shaft seal- lip type A-material Fpm
1-AME-2.50x54.00 mm Viton o-ring
6-AME-2.00x7.00 mm Viton o-ring

Philadelphia Ball & Bearing Co.
1346 Centre Avenue
Reading PA.19601-1412
phone # 610-376-7500

I don't know the prices yet because they were billed to my Dads business acct.
 
#26 ·
Is this all I need to rebuild it? Mine is way over due and would like to order everthing for it this week. I was also thinking of ordering the Bag of parts from Industrial Injection and installing them while it is off the truck.
 
#20 ·
my cost for the rebuild $20.00
 
#21 ·
Super cheap for a CP3 rebuild! :eek: Wanna do mine next? :lol3:
 
#22 ·
send it to me and I will fixer up:D
 
#23 ·
lets hope it stays leak free. I see a package there youll be able to sell when we dont have any more warranty on these things.:thumbsup
 
#24 ·
even if it only last a year or two until it leaks again $20.00 is alot better then buying new pumps when the warranties expire.
 
#27 ·
good post, good info.
this will not rebuild the pump, but basically freshen up the seal end of it.if your pump is wore out, it needs a rebuild and not just new seals.
i had a stage 3 pump on an 03 truck, and it use to leak in the winter when it got real cold, but always cleared up when it got warmer.
 
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