shovel oil pump

factory modification kit

All Shovelhead topics
Post Reply
nifty
Senior Member
Posts: 591
Joined: Wed Apr 29, 2020 8:24 am
Bikes: 68 FL
Location: Nambour Qld Australia
Has thanked: 256 times
Been thanked: 476 times

shovel oil pump

#1

Post by nifty »

I searched the KB, no go
The factory service manual 78.5 - 84 does not mention this valve or kit
Anyone got an instruction sheet for this kit? Or anyone know where the 3212 set screw is installed in pump body?
26410-82 VALVE KIT, to retrofit earlier pumps with long regulator valve piston, kit consists of:
26400-82 VALVE, oil pump (regulator piston, long)
3212 SET SCREW, 3/8” 16 UNC x ¼” long, hex socket grub screw
Cheers Nifty
guppymech
Member
Posts: 74
Joined: Fri Sep 22, 2017 2:33 pm
Bikes: 1984 FXE, 2002 883R
Location: Chicagoland
Has thanked: 17 times
Been thanked: 26 times

Re: shovel oil pump

#2

Post by guppymech »

Have a look at this excerpt from Donny Petersen's Shovelhead book. Looks like the kits on the big auction site come with some kind of instruction sheet.

https://books.google.com/books?id=ZqzK- ... en&f=false
guppymech
Member
Posts: 74
Joined: Fri Sep 22, 2017 2:33 pm
Bikes: 1984 FXE, 2002 883R
Location: Chicagoland
Has thanked: 17 times
Been thanked: 26 times

Re: shovel oil pump

#3

Post by guppymech »

I found the Service Bulletin Donny mentions, M-817.

http://sportsterpedia.com/lib/exe/fetch ... sb0817.pdf
nifty
Senior Member
Posts: 591
Joined: Wed Apr 29, 2020 8:24 am
Bikes: 68 FL
Location: Nambour Qld Australia
Has thanked: 256 times
Been thanked: 476 times

Re: shovel oil pump

#4

Post by nifty »

Thanks a lot Guppymech
I had already checked out Petersen, still a bit vague.
That SB helped, I learned that the set-screw is used as a plug so L73-80 pump relief dump oil can be switched from "return dump" to "feed suction dump" as for 81up pumps. (plug the old drilled hole to return, drill new hole to feed suction) Reading between the lines it appears to me that bore for new relief/regulator piston must also be reamed oversize.
I have a few shovel SB, is there a source for all of them as PDF files?
Cheers, Nifty
guppymech
Member
Posts: 74
Joined: Fri Sep 22, 2017 2:33 pm
Bikes: 1984 FXE, 2002 883R
Location: Chicagoland
Has thanked: 17 times
Been thanked: 26 times

Re: shovel oil pump

#5

Post by guppymech »

Here's the pdf SB list, there's a tab at the upper right to download the whole thing "export pdf", instructions to do so in the preface info.
http://sportsterpedia.com/doku.php/tech ... :miscres05
RooDog
Senior Member
Posts: 5327
Joined: Tue Oct 31, 2017 1:00 pm
Bikes: 1950 Panhead, Resto-Mod
1968 90", 5 Speed Shovelhead,
1984 Home Built Custom Evo 100" Bagger
Location: Knoxville, Tennessee
Has thanked: 2801 times
Been thanked: 2158 times

Re: shovel oil pump

#6

Post by RooDog »

The mods to the oil pump are all included in the $&$ pumps.
I'm not sure if restricting the oil flow to the crank is all that great of an idea. Remember, the EPA had the Mo Co by the cajones and squeezing, and they needed to come up with some sort of compromises to satisfy that government agency, and not necessarily for the good of the engine. And too, these were stop gap measures until they could get the new Evo engines out there to the public. Also note, the earliest EVOs were Shovelhead cases with an aluminum top end grafted on; if not in fact, at least by design.....
....RooDog....
Post Reply

Return to “Shovelhead”