Touring bike, oil pump alignment???
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Road Captain
Joined: Jan 2006
Posts: 508
Likes: 14
From: Tallahassee
Touring bike, oil pump alignment???
I am getting ready to start reassembly of the motor in my 08 Roadglide. I have all the parts to put the cams, lifters, cam cover, etc back on this weekend. I am still waiting for the heads and cylinders on my 1003 build but would like to get the bottom end buttoned up.
My 08 service manual describes a procedure to align the oil pump that involves rotating the crank while tightening the oil pump bolts. This procedure seems simple enough but I do not have the cylinders on the motor and would rather not spin it over.
I have had a book for several years (coppyright 2003) called 101 twin cam performance projects (Chris Maida of American Cycle Mag).
The book outlines a procedure they call Tech Tip #54 in which the MoCo suggests using alignment screws used for EVO lifter block alignment. Instead of rotating the crank they use these tapered screws in two of the four oil pump bolt holes then installing the other bolts and torquing down. I already have the tapered screws. This seems like a much easier method. I don't have to spin the crank (without jugs) and they claim it is a much better alignment.
My only question is since this Tip #54 came out years before my 08 service manual, why is this procedure not mentioned in the service manual?
Anyone have any experience with the tapered screw method, or should I just use the service manual method and have my rods bouncing around while I try to spin the crank and torque the oil pump bolts?
Sorry for the long post, I just wanted to get everything explained.
Thanks for your time,
Doug
My 08 service manual describes a procedure to align the oil pump that involves rotating the crank while tightening the oil pump bolts. This procedure seems simple enough but I do not have the cylinders on the motor and would rather not spin it over.
I have had a book for several years (coppyright 2003) called 101 twin cam performance projects (Chris Maida of American Cycle Mag).
The book outlines a procedure they call Tech Tip #54 in which the MoCo suggests using alignment screws used for EVO lifter block alignment. Instead of rotating the crank they use these tapered screws in two of the four oil pump bolt holes then installing the other bolts and torquing down. I already have the tapered screws. This seems like a much easier method. I don't have to spin the crank (without jugs) and they claim it is a much better alignment.
My only question is since this Tip #54 came out years before my 08 service manual, why is this procedure not mentioned in the service manual?
Anyone have any experience with the tapered screw method, or should I just use the service manual method and have my rods bouncing around while I try to spin the crank and torque the oil pump bolts?
Sorry for the long post, I just wanted to get everything explained.
Thanks for your time,
Doug
Road Warrior
Joined: Aug 2008
Posts: 1,474
Likes: 1
From: Acworth, Ga
Ive done it both ways. You can do the spin the wheel method with the jugs on and the plugs out, you will be fine.
You could also buy the pins here for $28.
http://www.kenandjudy.us/Harley%20Pi...Pins/index.htm
money well spent IMO as you wont second guess yourself down the road
You could also buy the pins here for $28.
http://www.kenandjudy.us/Harley%20Pi...Pins/index.htm
money well spent IMO as you wont second guess yourself down the road
Tourer
Joined: Nov 2007
Posts: 442
Likes: 4
In 07 the moco changed to a hydraulic cam chain tensioner. One thing I know for sure. If it is not aligned properly, you will have oil pump failer! Meaning the gerator gear that the crank shaft go's through will most definitley crumble!!! Don't ask me how I know. Good thing I had a gaurdian angel watching cause I got a new police 103 under warranty! Be sure to check your crank run out. It should be no more than .003 out of round.
Ultimate HDF Member
Joined: Feb 2007
Posts: 7,663
Likes: 7
From: Northeast Ohio
I recommend using the procedure in the HD manual as it allows the pump to "center" on the crank, especially if there is some runout. Using the pins aligns the pump to the plate but again, this may not match the runout.
There is no problem spinning the engine over by hand with the jugs and pistons off, as long as you protect the rods from hitting the case.
There is no problem spinning the engine over by hand with the jugs and pistons off, as long as you protect the rods from hitting the case.
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Outstanding HDF Member
Joined: Feb 2009
Posts: 2,005
Likes: 53
From: ID Ho
In 07 when the new tensioners came out Harley said not to use the alignment pins anymore due to the tighter tolerences they have built into the cam plate, BUT, that should just mean that the pins should work even better, I use the pins all the time, it works just fine.
Either method works, dont worry about turning the motor over though!
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