SE piston cooling jets + S&S 124" kit =

[Redrubicon2004]

   Larry buttoned up the bottom end for me a couple weeks ago.  I picked up SE cooling jets because they were cheaper than the S&S ones.  He installed them for me. Yesterday I learned a lesson.  SE cooling jets are made for a their 4.060" pistons, 4.125" dont work.  I guess the .0325" difference per side is just enough.  The piston skirts hit the top of them.  The part where they bolt to the case is slightly too thick.  I put the jugs on and rotated the engine to check my deck height and when it stopped just short of BDC, I realized I had a problem.   


Just picked up the S&S ones today.  Tomorrow evening I'll find out how easy/hard it is to change them out without splitting the cases.

[bladerunner]

 Just a few bolts ...split `em . It will be easyier   ........bladerunner

[Hillside Motorcycle]

  Larry buttoned up the bottom end for me a couple weeks ago.  I picked up SE cooling jets because they were cheaper than the S&S ones.  He installed them for me. Yesterday I learned a lesson.  SE cooling jets are made for a their 4.060" pistons, 4.125" dont work.  I guess the .0325" difference per side is just enough.  The piston skirts hit the top of them.  The part where they bolt to the case is slightly too thick.  I put the jugs on and rotated the engine to check my deck height and when it stopped just short of BDC, I realized I had a problem.   


Just picked up the S&S ones today.  Tomorrow evening I'll find out how easy/hard it is to change them out without splitting the cases.

Those are the ones we always use here.
Scott

[prodrag1320]

maybe im missing something here,why do you think you need to split the cases to replace cooling jets? just remove cylinder,take out the 2 screws and replace the SE ones with the S&S units

[WhipLash96]

I hear a lot of kudo' here for the S&S cooling jets. What makes the S&S ones better than the SE's? I have my engine torn apart and I am considering on replacing the cooling jets basically because this would be the time to do it. 

[rbabos]

Easy to do with cyls off. Don't drop the screws into the case. Rags are your friend.
Ron

[ThumperDeuce]

I have them on my Deuce.  I am a sucker for a mod so I had Otto put them in.  They are suppose to have a better spray pattern.

[WhipLash96]

I have them on my Deuce.  I am a sucker for a mod so I had Otto put them in.  They are suppose to have a better spray pattern.

[ThumperDeuce]

I have the S&S jets in. 

[koko3052]

I have them on my Deuce.  I am a sucker for a mod so I had Otto put them in.  They are suppose to have a better spray pattern.

How many  free horses?

[No Cents]

John @ Darkhorse Crankworks told me that they try to only use S&S piston oilers...unless a different piston oiler is specifically requested by the customer.
No complaints on my Darkhorse bottom end with S&S squirters.

No Cents

[ThumperDeuce]

I have them on my Deuce.  I am a sucker for a mod so I had Otto put them in.  They are suppose to have a better spray pattern.

How many  free horses?

As I think back now the SE parts were not available yet, so these replaced the stock oilers.  Longevity of the engine was the issue not hp.

[Admiral Akbar]

Yep. The motor will last longer if the pistons don't whack the oilers... 
Max

[No Cents]

Yep. The motor will last longer if the pistons don't whack the oilers... 
Max

Yep...you are correct again Max!

No Cents

[lilchief]

I just put in a set of stock oilers with the cases intact. (motor still in bike). Definitely takes patience and to me it's a "must be sober" kindajob so as not to drop a screw into the cases. When I went to reinstall the new jets, I used a really strong magnet that I have that was used to override a gas fireplace ignitor at my old house somehow (still not sure how that thing worked). It is about an 1 1/4" long and has a knurled grip. I stuck the torx head socket bit on the magnetic end which then magentized the screw so I could get them started without dropping them into the cases. It worked really well.

Lil' Chief