HarleyTechTalk

Technical Forums => Twin Cam => Topic started by: 86fxwg on February 13, 2020, 10:28:02 AM

Title: 03 TC oil pump ?
Post by: 86fxwg on February 13, 2020, 10:28:02 AM
Had my fair share of TC's apart,this pump is new to me!
Can someone explain how & what I need to do to disassemble & inspect.
Are there gaskets between the plates.
Looks like it may be a pain to reinstall as I assemble the pumps after the housing is installed.
Another shop did tensioners 2 years ago, thinking they installed because of wear on the cam plate. Crank R.O .003
Only reason for disassembly now is for 95"build with Cam's.
Thanks

86
Title: Re: 03 TC oil pump ?
Post by: rigidthumper on February 13, 2020, 10:57:01 AM
Any markings on the plate/pump that would show who the manufacturer is?
Title: Re: 03 TC oil pump ?
Post by: SP33DY on February 13, 2020, 11:09:55 AM
It looks like Drag Specialties 0932-0087 High Performance Oil Pump
Title: Re: 03 TC oil pump ?
Post by: 838 on February 13, 2020, 11:20:39 AM
A.K.A Daytona pump. I have one on my 95". They work well and (if weary) a new one can be had for about $120 :).
Title: Re: 03 TC oil pump ?
Post by: SP33DY on February 13, 2020, 11:27:08 AM
If the pump shows signs of wear, Drag Specialties offers:

09320219 Gerotor Scavenge - TC88/96
09320220 Gerotor Feed - TC88/96
09320221 Rebuild Kit - Drag TC88, partition plate and o-rings
Title: Re: 03 TC oil pump ?
Post by: fbn ent on February 13, 2020, 12:23:44 PM
Or....if you have the $$ the SE upgraded pump and hydraulic tensioners is a good upgrade.
Title: Re: 03 TC oil pump ?
Post by: 838 on February 13, 2020, 01:58:25 PM
Quote from: fbn ent on February 13, 2020, 12:23:44 PM
Or....if you have the $$ the SE upgraded pump and hydraulic tensioners is a good upgrade.

On my 95" I bought a 07 and up cam plate and the Daytona pump to match the 07 plate. Andrews 48N conversion cam was used. Holds 30psi constantly and eliminated the silent cam chain in the rear.
Title: Re: 03 TC oil pump ?
Post by: jsachs1 on February 13, 2020, 02:50:45 PM
Usually if the pump gears are worn, the pump body is junk. The inexpensive aftermarket replacement pumps work well.
John
Title: Re: 03 TC oil pump ?
Post by: 86fxwg on February 13, 2020, 03:57:35 PM
This is on an 03 bagger,ask customer if he ever had low oil pressure,he said never dropped below 20 hot summer days.

Yes it is a drag part!

Any gaskets or O-Ring's between plates?
Ok to just to gently pry apart?

86
Title: Re: 03 TC oil pump ?
Post by: Hillside Motorcycle on February 21, 2020, 03:50:03 AM
Those Drag pumps work very well.
Many folks feel the absolute burning need to install an S/E, red, or blue one, at 2 1/2 times the cost, when in actuality the OE HD pump is MORE than adequate to handle the oiling needs of even 124"/131" engines.
Proven that here, in no uncertain terms, for about 20 years now.