double roller timing set and LS6 oil pump (clearance issues)
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double roller timing set and LS6 oil pump (clearance issues) I was running a rollermaster double roller timing set in my LS1 along with a ported LS6 oil pump. When I put it together I used the oil pump spacers (provided with timing set) and remember the clearance between the back side of the pump and the front side of the chaing being tight. Well, now after tearing the motor back down it looks like there is enough play in the chain that it has actually been slightly rubbing on the back of the oil pump. I don't think this is normal... WTF?!?! Has anyone else experienced this?? Are double rollers really worth it or should I put a LS2 timing set back in it?? I'll be spinning the motor to 7,000 and using a healthy cam FWIW.
Thanks!
-Jeremy
Thanks!
-Jeremy
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Well guys, mine was really close... you could pretty much flex the chain outward and make it hit the oil pump... I don't really care for that. Just curious what experience others have had with this setup!
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I really think am the only lucky one when it comes to these. I installed that same exact setup in my car with no problems at all. Plenty of clearance too. Do you have the timing marks lined up exactly?
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Originally Posted by Robinator
Do you have the timing marks lined up exactly?
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From: BFE
Originally Posted by GTA91
You talking to me?? My double roller was installed and in the car for awhile with no issues. Upon tearing the motor down though I noticed that the chain could flex towards the oil pump and SLIGHTLY rub it... just curious if anyone else has had this problem.
Originally Posted by PREDATOR-Z
This is not a problem. Duals will not stretch enough to have a resonance causing it to hit the pump if proper spacers used. The motion you describe simply doesn't happen.
This is correct, the chain will not flex outward or inward, so don't worry about that. If there is space, then it will not hit, but if its resting on the oilpump, then you have problems.
Best Regards,
Adrian
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Originally Posted by PREDATOR-Z
This is not a problem. Duals will not stretch enough to have a resonance causing it to hit the pump if proper spacers used. The motion you describe simply doesn't happen.
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From: BFE
Originally Posted by GTA91
The motion I'm decribing DOES and DID happen... I was running a rollermaster double chain with a ported LS6 oil pump and the provided spacers. Like I said, when I assembled the motor it was close but had clearance. Well now upon tearing it apart I've noticed that you can pull the chain "outward" some and the little "rivets" on the chain links have slight wear on them. WTF?!?! I can post pics soon if necessary. Thanks for the help/concern guys!
If it did then something else is not right in the assembly.
In plain english your T-chain assembly is not rotating on a paralel axis and some type of wobliness is occuring.
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Originally Posted by PREDATOR-Z
Assuming you have proper clearances on t-chain assembly and your cam bearings are at specs, that motion should not happen.
If it did then something else is not right in the assembly.
In plain english your T-chain assembly is not rotating on a paralel axis and some type of wobliness is occuring.
If it did then something else is not right in the assembly.
In plain english your T-chain assembly is not rotating on a paralel axis and some type of wobliness is occuring.
*As for "proper clearances on the t-chain assembly"... what exactly are you referring to? I guess I'll have to wait until I re-assemble the engine and look into this area more closely.
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From: BFE
Originally Posted by GTA91
Maybe it is due to my cam bearings. They were worn due to some other issues I had recently. That would make sense and contribute to the "play"...
*As for "proper clearances on the t-chain assembly"... what exactly are you referring to? I guess I'll have to wait until I re-assemble the engine and look into this area more closely.
