oil pump fitment?
Thread Starter
|
Tourer
Joined: Aug 2021
Posts: 449
Likes: 197
From: NC Mountains
oil pump fitment?
Hey out there.
Question for those in the know. Originally I just needed to repl. the chain tensioners on my 03 FLHRCI. However I have found this cam chest business should be labeled " Highly Addictive". I had to buy parts here and there as budget allowed. Got M/C Spare parts SS hardware and white teflon tensioner pads, HLJ 2313SE lifters from Larry, S&S quickies kit, S&S bearing kit, NOS Red Shift 511 cams and NOS Drag Specialties High pressure/volume oil pump. I will enclose a pic of the box with fitment as this pertains to my main question. Also a whole list of tools, presses ect. to do this deal. While all this gathering up has been going on since Sept. I am thinking of going all out with a conversion cam plate with hyd. tensioners? I'm not 100% sure, but here is the QUESTION. The conversion plates I've seen say must use 2007 style oil pump. Is this due to bolt pattern change, higher volume/pressure values or some other engineering quirk? If ya'll could give me some hard insight as to "will or won't" work that will help me greatly on my next retail therapy shopping spree. Pump is unused and got a Really fair price. The "model replacement numbers" do match my current stock pump. So would like to use it, if it will fit and work on one of those fancy upgrade cam plates
What say YE All
Question for those in the know. Originally I just needed to repl. the chain tensioners on my 03 FLHRCI. However I have found this cam chest business should be labeled " Highly Addictive". I had to buy parts here and there as budget allowed. Got M/C Spare parts SS hardware and white teflon tensioner pads, HLJ 2313SE lifters from Larry, S&S quickies kit, S&S bearing kit, NOS Red Shift 511 cams and NOS Drag Specialties High pressure/volume oil pump. I will enclose a pic of the box with fitment as this pertains to my main question. Also a whole list of tools, presses ect. to do this deal. While all this gathering up has been going on since Sept. I am thinking of going all out with a conversion cam plate with hyd. tensioners? I'm not 100% sure, but here is the QUESTION. The conversion plates I've seen say must use 2007 style oil pump. Is this due to bolt pattern change, higher volume/pressure values or some other engineering quirk? If ya'll could give me some hard insight as to "will or won't" work that will help me greatly on my next retail therapy shopping spree. Pump is unused and got a Really fair price. The "model replacement numbers" do match my current stock pump. So would like to use it, if it will fit and work on one of those fancy upgrade cam plates
What say YE All
Thread Starter
|
Tourer
Joined: Aug 2021
Posts: 449
Likes: 197
From: NC Mountains
Exhaust open 37, c/l 98, close 21 Duration 238 TDC .185″ Lift .510″. I have this set of cams right up at the top-end of lift for my bike. Mine has the double springs. I had been looking,, longingly at the Fueling 525 cam set that they claim is a bolt in for my bike, this is Fueling's take on things,,,, {TC 99 - 06, Except 06 Dyna models, 525 Intake, 535 Exhaust, direct bolt in replacement can be used with factory valve springs, pushrods and lifters. RPM 1,750-5,800} I like their numbers a bit better but that 525 and 535 lift in my bike may be pushing it a bit too far without pulling the heads and more surgery that I dearly do not want to do.
If you come across any good news about the oil pump situtation give me a hollar.
Thanks
Dennis
Tourer
Joined: Sep 2014
Posts: 279
Likes: 315
From: Southern Vancouver Island
If the conversion plate requires 07 and up oil pump, it likely mounts differently as 07 was the year the factory switched the cam chest over to the new hydraulic tensioners. I don't know for sure but they obviously spec the 07 and up pump for a reason. It likely also has different oil feeds to supply pressurized oil to the tensioner assembly.
I would not consider going with gear drive. Chain drive works just fine, is far more forgiving of crank runout and runs much quieter.
You already have a collection of pretty decent quality parts. I would probably just stick with your existing parts and and run it. How many miles did you get out of the original tensioners?
I would not consider going with gear drive. Chain drive works just fine, is far more forgiving of crank runout and runs much quieter.
You already have a collection of pretty decent quality parts. I would probably just stick with your existing parts and and run it. How many miles did you get out of the original tensioners?
Thread Starter
|
Tourer
Joined: Aug 2021
Posts: 449
Likes: 197
From: NC Mountains
If the conversion plate requires 07 and up oil pump, it likely mounts differently as 07 was the year the factory switched the cam chest over to the new hydraulic tensioners. I don't know for sure but they obviously spec the 07 and up pump for a reason. It likely also has different oil feeds to supply pressurized oil to the tensioner assembly.
I would not consider going with gear drive. Chain drive works just fine, is far more forgiving of crank runout and runs much quieter.
You already have a collection of pretty decent quality parts. I would probably just stick with your existing parts and and run it. How many miles did you get out of the original tensioners?
I would not consider going with gear drive. Chain drive works just fine, is far more forgiving of crank runout and runs much quieter.
You already have a collection of pretty decent quality parts. I would probably just stick with your existing parts and and run it. How many miles did you get out of the original tensioners?
Seasoned HDF Member
Joined: Sep 2008
Posts: 14,156
Likes: 11,247
From: San Diego, CA
QUESTION. The conversion plates I've seen say must use 2007 style oil pump. Is this due to bolt pattern change, higher volume/pressure values or some other engineering quirk? If ya'll could give me some hard insight as to "will or won't" work that will help me greatly on my next retail therapy shopping spree. Pump is unused and got a Really fair price. The "model replacement numbers" do match my current stock pump. So would like to use it, if it will fit and work on one of those fancy upgrade cam plates
What say YE All
I have done a couple conversion plate upgrades to my early twin cam bikes. I don't remember the exact reason, but you cannot use an oil pump for the early, spring tensioner cam plate on a later, hydraulic tensioner cam plate..... I have both in my used parts drawer, but have not cared enough to compare them directly... In my '07+ cam plate conversions, I've used the '07+ cam plate oil pump..
The '07+ cam plate oil pump touts better oil flow/pressure than its predecessor... however, IMHO, unless doing a pretty high HP build, the original OEM oil pump, in both configurations, it more than adequate and does not need to be upgraded... Now if you just want bling, go for it.. I did use an S&S TC3 cam plate and oil pump in one of my conversions.... just because...
Your OEM oil pump is #26035-99B, and that is the number on the label of the Drag Specialties pump you posted ... so I'm pretty sure the oil pump you have is for the early cam plate and won't work on the '07+ cam plate upgrade...
Two other points to consider if you decide to go with the newer '07+ cam plate conversion....
1) You will need new cams... Cams that fit the earlier cam plate, won't work with the newer cam plate... You need to get "conversion cams". They are designed to fit the newer cam plate AND the older, smaller inner cam plate bearings of the 88" engines....
2) Make sure to get the newer cam plate for a Touring "A" twin cam engine. The newer cam plate for the softail "B" twin cam engine has an extra oil gallery in the cam plate to provide oil to the balancers in the softail engine. If you put a "B" cam plate in the "A" engine, you will never reach proper oil pressure and oil will be dumping into your cam chest from the extra cam plate openeing...
Good luck with your decisions and your mod....
Trending Topics
Thread Starter
|
Tourer
Joined: Aug 2021
Posts: 449
Likes: 197
From: NC Mountains
I have done a couple conversion plate upgrades to my early twin cam bikes. I don't remember the exact reason, but you cannot use an oil pump for the early, spring tensioner cam plate on a later, hydraulic tensioner cam plate..... I have both in my used parts drawer, but have not cared enough to compare them directly... In my '07+ cam plate conversions, I've used the '07+ cam plate oil pump..
The '07+ cam plate oil pump touts better oil flow/pressure than its predecessor... however, IMHO, unless doing a pretty high HP build, the original OEM oil pump, in both configurations, it more than adequate and does not need to be upgraded... Now if you just want bling, go for it.. I did use an S&S TC3 cam plate and oil pump in one of my conversions.... just because...
Your OEM oil pump is #26035-99B, and that is the number on the label of the Drag Specialties pump you posted ... so I'm pretty sure the oil pump you have is for the early cam plate and won't work on the '07+ cam plate upgrade...
Two other points to consider if you decide to go with the newer '07+ cam plate conversion....
1) You will need new cams... Cams that fit the earlier cam plate, won't work with the newer cam plate... You need to get "conversion cams". They are designed to fit the newer cam plate AND the older, smaller inner cam plate bearings of the 88" engines....
2) Make sure to get the newer cam plate for a Touring "A" twin cam engine. The newer cam plate for the softail "B" twin cam engine has an extra oil gallery in the cam plate to provide oil to the balancers in the softail engine. If you put a "B" cam plate in the "A" engine, you will never reach proper oil pressure and oil will be dumping into your cam chest from the extra cam plate openeing...
Good luck with your decisions and your mod....
The '07+ cam plate oil pump touts better oil flow/pressure than its predecessor... however, IMHO, unless doing a pretty high HP build, the original OEM oil pump, in both configurations, it more than adequate and does not need to be upgraded... Now if you just want bling, go for it.. I did use an S&S TC3 cam plate and oil pump in one of my conversions.... just because...
Your OEM oil pump is #26035-99B, and that is the number on the label of the Drag Specialties pump you posted ... so I'm pretty sure the oil pump you have is for the early cam plate and won't work on the '07+ cam plate upgrade...
Two other points to consider if you decide to go with the newer '07+ cam plate conversion....
1) You will need new cams... Cams that fit the earlier cam plate, won't work with the newer cam plate... You need to get "conversion cams". They are designed to fit the newer cam plate AND the older, smaller inner cam plate bearings of the 88" engines....
2) Make sure to get the newer cam plate for a Touring "A" twin cam engine. The newer cam plate for the softail "B" twin cam engine has an extra oil gallery in the cam plate to provide oil to the balancers in the softail engine. If you put a "B" cam plate in the "A" engine, you will never reach proper oil pressure and oil will be dumping into your cam chest from the extra cam plate openeing...
Good luck with your decisions and your mod....
As they say,,, "Tick-Tock".
AS always
Thanks for your input.
For me, it may be all that stands between a running ride or heavy duty boat anchor
HD Forum Stories
The Best of Harley-Davidson for Lifelong Riders
7 Surprising Harley-Davidson Products that Are Not Motorcycles
Verdad Gallardo
8 Best Harley-Davidson Motorcycles Ever
Pouria Savadkouei
10 Worst Harley-Davidson Motorcycles Ever
Pouria Savadkouei
Killer Custom's Jail Break Is The Breakout That Refused to Blend In
Verdad Gallardo
Crazy Bunderbike Build Looks Amazing, But Is It Impossible to Ride?
Verdad Gallardo
Harley-Davidson Reveals Super Cool Cafe Racer Concept
Verdad Gallardo
Engraved Rebellion: Inside Bundnerbike's Glam Rock II
Verdad Gallardo
10 Motorcycles You Should Never Buy
Joe Kucinski
10 Things Harley-Davidson Needs to Fix in 2026
Verdad Gallardo
Thread Starter
|
Tourer
Joined: Aug 2021
Posts: 449
Likes: 197
From: NC Mountains
OH Dan,,
there is a good reason to warm up the bike about every 1-2 weeks. I haven't been able to ride since July 2019. It's really more for my soul to be that close to a running machine than just slinging oil around in the bottom end
there is a good reason to warm up the bike about every 1-2 weeks. I haven't been able to ride since July 2019. It's really more for my soul to be that close to a running machine than just slinging oil around in the bottom end
Seasoned HDF Member
Joined: May 2017
Posts: 5,915
Likes: 5,929
From: NorCal
So, you opened the Cam Chest, looked at what you thought was acceptable shoe wear, and buttoned it up? Is that right? Don't recall seeing anything about the inner bearings upgrade. Do you plan on that? Have the tool? I always cut open my oil filter when doing changes and that's what led me to change my tensioner shoes. I saw flecks in the filter media.