Pump filter seal area damage
Not the right way to do it
I usually just recommend the wide bushing. It isn't much money and it's a nearly foolproof way to get it right!
Orientation relative to the lube hole is insignificant.
But orientation relative to each other when stacking bushings is critical. Need to make sure the slots act as one continuous slot.
Interesting fact on the double stack bushings. I didnt know this either......
I have never ran the double stack either though, just the wide. Normally when using the Sonnax wide bushing I have to "fit" it to reaction shaft. Which is an easy task.....
Edited about right after air checked again now I see some bubbles coming out of different spot looks like I need a new drum then right? very disappointing.
Last edited by RobPH; Mar 2, 2023 at 11:27 PM.
https://www.sonnax.com/tech_resource...ith-confidence
read page 2:
https://d2q1ebiag300ih.cloudfront.ne...=1598558282587
Last edited by tayto; Mar 2, 2023 at 11:30 PM.
Edited about right after air checked again now I see some bubbles coming out of different spot looks like I need a new drum then right? very disappointing.
The Best V8 Stories One Small Block at Time
If I am wrong someone please speak up.
The Input Sun Gear can also benefit from additional support.
Lube Hole placement must be very carefully observed, and then some additional support can be provided.
Lube in this area should be increased.
If anyone wants to post some images of the Input Sun Gear and Output-Shaft... you guys can figure out what to do for Bushings.

Take a look at the Reaction-Shaft as well!
Last edited by vorteciroc; Mar 3, 2023 at 04:26 PM.
Last edited by RobPH; Mar 4, 2023 at 06:26 PM.
Can barely get .002 in there or between my straight edge and slide. Between straight edge and rotor it goes between a little easier with .002 is this good enough? Have new pump vanes checked thickness of my rings they are both the same.
Last edited by RobPH; Mar 4, 2023 at 08:16 PM.









