Oil gear shaft shape
- GuruX
- Posts: 9
- Joined: Wed Jun 13, 2018 1:18 pm
Oil gear shaft shape
The end of the camshaft (where the shaft of the oil gear meets) is a little dished. The shaft of the oil gear is square.
I got this picture in an email from Scat. They tell me to round of the gear oil shaft, as in the picture. I can't understand why I would do that. That would mean that the oil gear is only rotated by friction, and not by grabbing on to the camshaft end. Are their instructions really correct?
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Last edited by GuruX on Sat Jun 30, 2018 9:24 am, edited 1 time in total.
- Bills914-4
- Posts: 105
- Joined: Tue Nov 08, 2005 9:09 am
Re: Oil gear shaft shape
Hello ,
You need to put a radius on the end of shaft , what I've done in the past is put play-do or plumbers putty in the end
of cam shaft , then carefully remove it , so you have an idea of the arc or radius , grind the end of shaft flat to match
arc , be careful not to much , with pump housing installed in case , insert shaft so the flat goes in cam slot , see how
much gear sticks above housing surface , repeat grind more on the end shaft until gear is flush with top of housing ,
now remove housing & gear shaft , put a little putty in cam slot , install housing insert gear shaft into cam slot , push
till gear is flush , you need clearance between end of shaft with radius & bottom of cam slot , putty tells you how
close your ac radius matches and how much clearance you have , I hope this makes sense I hope this helps
heres a pic of end of shaft flat with radius
You need to put a radius on the end of shaft , what I've done in the past is put play-do or plumbers putty in the end
of cam shaft , then carefully remove it , so you have an idea of the arc or radius , grind the end of shaft flat to match
arc , be careful not to much , with pump housing installed in case , insert shaft so the flat goes in cam slot , see how
much gear sticks above housing surface , repeat grind more on the end shaft until gear is flush with top of housing ,
now remove housing & gear shaft , put a little putty in cam slot , install housing insert gear shaft into cam slot , push
till gear is flush , you need clearance between end of shaft with radius & bottom of cam slot , putty tells you how
close your ac radius matches and how much clearance you have , I hope this makes sense I hope this helps
heres a pic of end of shaft flat with radius
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Bill DeWitt
2800cc 914-4
TwinPlugs & MegaSquirted
Now Boosted 7-10 psi
Weekend Therapy
2800cc 914-4
TwinPlugs & MegaSquirted
Now Boosted 7-10 psi

Weekend Therapy
