broken pumps
#1
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broken pumps
I keep breaking pumps in my 4l60 the tabs break off. I have broken ten pumps now. I have an 03 sierra with a 6.0 and a turbo on it I am putting about 550 to the wheels I run a tci converter, and the pumps always seem to real when just cruising not under a hard acceleration. Any ideas
#4
I would be more concerned with the alignment of the converter to the pump, pump spacing etc... And yeah it would be useful to have pressure readings.
10 pumps is 10 too many. I have not heard of a combination that eats pumps like this before. How long has that converter been in there?
g
10 pumps is 10 too many. I have not heard of a combination that eats pumps like this before. How long has that converter been in there?
g
#6
Which flexplate are you running and how much space is there between the flexplate and the converter pads when the converter is unbolted and bottomed out into the pump?
Tell us what mods you have to your transmission. I'm curious to know what pumps you're running. Who is doing the install, who built the pumps etc... I'm sure we can figure this out.
g
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#8
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Well let's see. I didn't mention this has happened before and after I changed to a 6.0 liter. The trans is a stage 2 performabuilt. Since that warranty ran out I have built it myself. I am an ase master tech and work for a Chevy dealer as a tech for a living so I have done all the work myself. They are stock pumps. Stock flexplate and about 3/16 inch between flexplate and converter. Oh and this also happened before the pwrformabuilt trans
#10
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Same question here. Also how are the dowel pin holes in the bell housing? Being that this happened with the original trans and now with the PB unit I would be questioning the bell. Have you changed the flex plate in this truck?
Last edited by Vince B; 08-09-2011 at 06:15 PM.