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Engine Mechanical TopicsDiscussion for motor builds, cams, head work, stripped bolts and other engine related issues. The good and the bad. If it goes round and around or up and down, post it here.
I am wirting to you guys that are awesome with the streight forward advice,
So I have this project bike I've been working on;
2012 Road Glide Ultra
Complete facelft(lower)
10' Bars
MRI centerstand
Fat Tire Kit
Front/rear suspension; Progressive 2' lower and legends air ride
S&S Sidewinder 2 into1
Woods TW555 Kit
Power Vision Tuner
Ok so every thing went great and the bike ran awesome, far exceded my expectations.
Went for a few rides, (oh I forgot to mention I picked up as a salvage, so I don't exactly know history but the damage seemed minimal)
Yesterday, wa riding all day all was good, we were riding from place to place soing for awhile, I will say we were riding pretty hard.
I heard kind of a pop and then the light came on and psi went to 0.
I never opened the oil pump to look and I just put it back together.
I trailered it home and disassembled and the pump is destroyed. (pis to follow)
My question is this;
I am a pretty good wrench and did my homework helped with a couple of cam jobs.
Before I upgrade and just through another oil pump in, any ideas of what may have happened?
Maybe something I did or didn't do, something to look formoving forward?
I did a runout of the cranck and it is .005"
All the pieces seem to be confined to the pump housing.
There was a burr on the crank and I had to use a puller to get the inner gear and housing off,
the galling seems minimal an dthing I can clean it up with emery cloth.
What are some suggestions for cam plate and oil pump i am thinking the S&S setup
The S&S cam plate and oil pump are a nice piece of engineering, I put them in my 110 late last season after I admired the parts in my hands for a few days first.
Outside a manufacturing defect, oil pumps usually don't break; something breaks them like something passing through that shouldn't have or it could have been installed and not aligned. Did the pump fasteners feel like they had been torqued to spec? Were the pump internals complete and installed correctly? Check run out again and before replacing the pump, consider having doing this right and tear the motor down and send out the crank to be trued, balanced and plugged. I wouldn't think .005" run out was enough to break the pump but maybe there was a defect with the gerotor; dunno. The S&S plate/pump is very nice hardware but the OEM pump/plate is quite adequate for a replacement for a Stage II motor.
Not knowing the history of a salvage bike is a leap of faith.
The S&S cam plate and oil pump are a nice piece of engineering, I put them in my 110 late last season after I admired the parts in my hands for a few days first.
How are your stock plate and pump. Might be able to sell to the OP?
Op: Got a picture of the cam plate? It's a good idea to try and piece the inner and outer gerotors and see how the teeth look. You might see is something was ingested.
Ill tell you exactly what you did and no i wasnt there. When you reassembled the pump and plate you did it as a unit right? You never separated the two correct? On reassembly your inner gyrator didnt quite line up and the cam plate didnt seat 100 percent...probably seamed like it did but it didnt. If you were really paying attention while you were torquing down the cam plate you may heard a faint " pop" ,that was your inner gear breaking. Now it probably stayed together for a bit, pretty tight in there. Then it just let loose and the gyrator came apart and oil pressure went bye bye. Pretty close? Wow you're thinking this frigging guys a genius lol...nope im actually a dumb *** that did pretty much what you did only on mine the gyrator came apart right away and it never built oil pressure so after a 30 second run and then a quick 15 second run to confirm that i had messed something up. That was my lesson for the day...never put the pump and plate back in as one piece and yes i did the centering procedure but it was too late even at that point. I didnt save any pictures from the blessed event...wanted to get rid of the evidence lol
Ill tell you exactly what you did and no i wasn't there. When you reassembled the pump and plate you did it as a unit right? You never separated the two correct? On reassembly your inner gyrator didnt quite line up and the cam plate didnt seat 100 percent...probably seamed like it did but it didn't. If you were really paying attention while you were torquing down the cam plate you may heard a faint " pop" ,that was your inner gear breaking. Now it probably stayed together for a bit, pretty tight in there. Then it just let loose and the gyrator came apart and oil pressure went bye bye. Pretty close? Wow you're thinking this frigging guys a genius lol...nope im actually a dumb *** that did pretty much what you did only on mine the gyrator came apart right away and it never built oil pressure so after a 30 second run and then a quick 15 second run to confirm that i had messed something up. That was my lesson for the day...never put the pump and plate back in as one piece and yes i did the centering procedure but it was too late even at that point. I didnt save any pictures from the blessed event...wanted to get rid of the evidence lol
Good description but it the outside one that likely cracked when you tightened down things.
I ordered the S&S cam plate and oil pump kit with the hyd chain tensioners.
My buddy laughed at me saying your throwing good money away. I disagree,
S&S is a great company and I just am kinda tired of saying Harley parts are good enough or adequate.
i work for a tool company that is just down the street from the HD HQ and work side by side with alot of engineers that helped develop this stuff.
They put there heart and soul into safety but every part has a margin and every team is under pressure to make it good enough to last X long and cost X much.
And then turned over to a "country that basically does whatever the &#@% they want with little regard for tolerances and...
ok sorry got a little off track there, but it's true and I admit, the HD parts are adequate and would have probably lasted a long time had I double checked my work.
As Screamin beagle said I never aligned the pump (settled it).
When the cam plate is bolted back on the oil pump bolts need to be loosened so the oil pump can float,
tighten the bolts on the cam plate, leaving the oil pump bolts loose and turn the motor by hand a couple of revolutions,
this will center and align the pump on the crank shaft, no wyou can torque the oil pump bolts.
Thanks Screamin beagle, it's tough to swallow your pride and admit mistakes, but this is one that gets overlooked alot.
So hopefully our mistake helps a couple of simple people trying to save a couple of bucks on labor.
I told a buddy about this and he turned whited and said I know what I'll be doing tomorrow, ashe just installed cams in his bike.
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Oil Pump Failure questions
