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post #1 of 8 (permalink) Old 06-17-2008, 04:22 AM Thread Starter
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BTS Hpop

For those of you that have a bts hpop, how do you adjust the backlash between the two gears? It has a steel eccentric, but how do you get it to spin

Curt
97 350 CC LB 4x4
Injectors, oil, H2E, studs, 910's, idm, etc...

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post #2 of 8 (permalink) Old 06-17-2008, 05:03 AM
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Re: BTS Hpop

Try sending a PM to Dockboy. He would know.

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post #3 of 8 (permalink) Old 06-17-2008, 05:29 AM
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Re: BTS Hpop

I would call Brian at: 870-422-3673
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post #4 of 8 (permalink) Old 06-17-2008, 05:50 AM Thread Starter
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Re: BTS Hpop

Thanks guys.
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post #5 of 8 (permalink) Old 06-17-2008, 06:06 AM
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Re: BTS Hpop

I wish I could help, but Cale did all the install for me and I have no idea how he turned the eccentric. I remember him checking it though and IIRC the lash is 10 thousandths. I'm curious to see what you find out.

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post #6 of 8 (permalink) Old 06-17-2008, 05:50 PM
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Re: BTS Hpop

Doesn't the steel eccentric spin in the bore? Mine did

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post #7 of 8 (permalink) Old 06-18-2008, 02:32 AM
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Re: BTS Hpop

The steel eccentric ideally spins in the bore of the aluminum reservoir. It is nearly impossible to spin without removing the eccentric and reinstalling. You might want to index the eccentric prior to removing, then you can reinstall in the correct clocked position. The correct amount of gear backlash is very important. Once you find the correct clocked position you should remove the eccentric and apply a very light coat of sealant and reinstall. Without sealant you may experience a slight leak.
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post #8 of 8 (permalink) Old 06-18-2008, 05:41 AM Thread Starter
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Re: BTS Hpop

Quote:
Originally Posted by JMS1 View Post
Once you find the correct clocked position you should remove the eccentric and apply a very light coat of sealant and reinstall. Without sealant you may experience a slight leak.
Thats exactly why it would not come out. I had to use a puller to get to get it to break free. I believe I'm going to call BTS though, with the eccentric set for the least amount of lash, I can only get it down to .013. I checked the backlash of the bottom pump before I started and it was on the low side of the factory specs, .0055-.006. After getting the eccentric out, it seemed to have a lot of clearance to the housing bore, not really a snug fit.

Curt
97 350 CC LB 4x4
Injectors, oil, H2E, studs, 910's, idm, etc...

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