Text only | Text with Images

HarleyTechTalk

Technical Forums => Shovel Head => Topic started by: xlfan on March 31, 2022, 08:13:36 AM

Title: 73-up oil pump on 68 BT
Post by: xlfan on March 31, 2022, 08:13:36 AM
Has anyone tried this? Is it any case drilling involved? Not S&S billet pump, aftermarket cast old style pump.
Title: Re: 73-up oil pump on 68 BT
Post by: JSD on March 31, 2022, 08:40:02 PM
68 has upgraded pump pre were cast
Title: Re: 73-up oil pump on 68 BT
Post by: billbuilds on April 02, 2022, 05:46:54 PM
     I don't think that it will work  correctly as passages will not line up. The cutoff year is 1972, the last year for the side oiling pinion shaft.
Title: Re: 73-up oil pump on 68 BT
Post by: SP33DY on April 03, 2022, 10:20:29 AM
Use S&S 53-0013 Crankcase Oil Passage Drilling Jig to get the oil passages right. Instructions can be found here:

Drilling Jig (https://www.sscycle.com/docs/default-source/instruction-sheets/51-1041-billet-oil-pump-bt.pdf?sfvrsn=2) :hug:
Title: Re: 73-up oil pump on 68 BT
Post by: billbuilds on April 03, 2022, 01:20:16 PM
Quote from: SP33DY on April 03, 2022, 10:20:29 AMUse S&S 53-0013 Crankcase Oil Passage Drilling Jig to get the oil passages right. Instructions can be found here:

Drilling Jig (https://www.sscycle.com/docs/default-source/instruction-sheets/51-1041-billet-oil-pump-bt.pdf?sfvrsn=2) :hug:

    It's my understanding that you need to use an S&S pump. All S&S pumps are for end oiling pinion shafts and are the 81 and up style that splits the oil path. I do not believe that those instructions are for a end oilin 
Quote from: SP33DY on April 03, 2022, 10:20:29 AMUse S&S 53-0013 Crankcase Oil Passage Drilling Jig to get the oil passages right. Instructions can be found here:

Drilling Jig (https://www.sscycle.com/docs/default-source/instruction-sheets/51-1041-billet-oil-pump-bt.pdf?sfvrsn=2) :hug:

     Those instructions are for an S&S billet aluminum pump which is a different animal than a stock 73 pump.
Title: Re: 73-up oil pump on 68 BT
Post by: JSD on April 04, 2022, 09:06:26 AM

Quote from: xlfan on March 31, 2022, 08:13:36 AMHas anyone tried this? Is it any case drilling involved? Not S&S billet pump, aftermarket cast old style pump.
Why do you want to fit a pre 68 cast pump? Also fit 6 pinion& 24 oil drive gears to ya 1968 
Title: Re: 73-up oil pump on 68 BT
Post by: JSD on April 04, 2022, 09:08:30 AM

Quote from: SP33DY on April 03, 2022, 10:20:29 AMUse S&S 53-0013 Crankcase Oil Passage Drilling Jig to get the oil passages right. Instructions can be found here:

Drilling Jig (https://www.sscycle.com/docs/default-source/instruction-sheets/51-1041-billet-oil-pump-bt.pdf?sfvrsn=2) :hug:
Correct if using 73 pump and end oiler
Title: Re: 73-up oil pump on 68 BT
Post by: xlfan on April 05, 2022, 12:14:32 AM
Quote from: JSD on April 04, 2022, 09:06:26 AM
Quote from: xlfan on March 31, 2022, 08:13:36 AMHas anyone tried this? Is it any case drilling involved? Not S&S billet pump, aftermarket cast old style pump.
Why do you want to fit a pre 68 cast pump? Also fit 6 pinion& 24 oil drive gears to ya 1968

I don't want to fit a pre 68 cast iron pump, but a post 73 cast alu (not billet) pump.
Text only | Text with Images