COMP double roller and "clearanced" SLP oil pump making contact?
07-19-2013, 01:39 PM
#1
On The Tree
Thread Starter
Join Date: Nov 2012
Posts: 118
Likes: 0
Received 0 Likes
on
0 Posts
COMP double roller and "clearanced" SLP oil pump making contact? I'm using a COMP double roller on my LS1. I bought the SLP "clearance" oil pump that is supposed to clear the chain without using the shims. It states right in my SLP instructions that the shims aren't needed. I bolted the pump on and noticed very little clearance. I couldn't even get ANY feeler gauges between the pump and chain. Rotated the engine a couple revolutions by hand. I took the pump back off and found obvious marks where the chain is rubbing. Anyone else have this problem with this combo. I've tried calling SLP, but I keep getting a recording and nobody will call back. Looks like that whole Roush takeover had already had negative effects.
Frank
Frank
07-22-2013, 07:48 PM
#2
On The Tree
Thread Starter
Join Date: Nov 2012
Posts: 118
Likes: 0
Received 0 Likes
on
0 Posts
Just to update. I've been on the phone with COMP and SLP about this. The SLP chain is .885" wide. My COMP is .920" wide. My SLP oil pump is at the machine shop having .035" milled off in the chain area.
07-23-2013, 12:18 PM
#3
When you go to put the front cover on rub some grease on the front of the oil pump body, then without the gasket slide the front cover on and see if it sits flush with the front of the block.
If not, slide it back off and grind some off the cover where the grease off the pump stuck to it.
It might take a few trys but once it sits flush pull it back off, put the gasket in and bolt it on. This will give you plenty of clearance and let the front cover gasket seal
If not, slide it back off and grind some off the cover where the grease off the pump stuck to it.
It might take a few trys but once it sits flush pull it back off, put the gasket in and bolt it on. This will give you plenty of clearance and let the front cover gasket seal
07-23-2013, 03:32 PM
#5
On The Tree
Thread Starter
Join Date: Nov 2012
Posts: 118
Likes: 0
Received 0 Likes
on
0 Posts
07-23-2013, 05:19 PM
#7
On The Tree
Thread Starter
Join Date: Nov 2012
Posts: 118
Likes: 0
Received 0 Likes
on
0 Posts
Had .035" clearance milled off the pump. I confirmed with SLP that this was acceptable...As long as "I clean everything well upon reassembly". LOL...I own a transmission shop. We know how to clean stuff... Realistically, the only part of the chain that was hitting were the pins. It's hard to get a feeler gauge in there because of the step, but I've had a .020" gauge in after it was cut.
As a side note, some have asked if I made sure the crank gear was all the way on. I laid a straightedge across the chain at the crank sprocket and across the top of the chain. I have the same distance to the block face in both locations.
Frank
