Oil presure problem
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Road Warrior
Joined: Aug 2006
Posts: 1,440
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From: Columbus,Indiana/ Arecibo,Puerto Rico
RE: Oil presure problem
Except for a Stage 1, air filter kit& download, it,s stock. It has sin 3 in all 3 holes for now. Since delivery/new every adjustment to be made to the drivetrain has been made. Upon delivery, the primary and drive belt was so tight you could not push the bike, and going down the road/pull the clutch in it would solw down and stop by itself. the clutch was only half stroke, a cut o ring,first day, on the cover by the dipstick.bad oil leak. Stalling issue was a cracked intake and bad intake gasket. Rear exaust Y pipe broke at 5K. Now this problem,and the dealer where I bought it suggested I put louder pipes on it and take it to another shop, to see if they can find anything wrong. Bloomington H/D, Indiana
Novice
Joined: Aug 2006
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From:
RE: Oil presure problem
Hmmm,,, I think I would check the pump bypass valve for dirt or damage, before going too deep. That would be the ball and seat under the pressure relief spring. If this is leaking the symptoms would be as you discribe.
Banned
Joined: Jan 2007
Posts: 2,301
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From:
RE: Oil presure problem
In other words the dealer is tired of you coming in and complaining and since it's under warranty he's not making any money off you, except what HDMOCO refunds him.
And he doesn't have a clue to the problem.
Now if it is quiet until the engine is thoroughly warmed up, I would suspect a oil delivery problem more so than mechanical but that's not entirely true either.
Back when you had to manually adjust valve clearances on bikes, cars, trucks whatever,
the books usually gave you a cold and hot tolerance, because the metal expanded as it got hotter and tolerances decreased.
Now in a hydraulic lifter it does this automatically.
The lifter is basically a hydraulic jack. the valving lets the oil get in faster than it can get out.
thus the lifter "pumps" up closing the valve lash gap.
Presuming everything is right in the machining and tolerances of the entire valve train,
I would suspect two things other than restrictions in passages.
Oil pump that can not supply enough VOLUME of oil when hot not just pressure, so there is enough oil to keep lifters pumped up when warm. this can be an internal leak of oil pump system
(bad o ring that has been causing sumping problems).
Or maybe bad valving in the lifter, letting oil out too fast.
Or poor engineering.
If you are sure the pump is fine (not sumping etc)
Even though they're expensive you might try better lifters.
Same thing used to happen in cars quite often when lifters got old.
ORIGINAL: dgriffith
Except for a Stage 1, air filter kit& download, it,s stock. It has sin 3 in all 3 holes for now. Since delivery/new every adjustment to be made to the drivetrain has been made. Upon delivery, the primary and drive belt was so tight you could not push the bike, and going down the road/pull the clutch in it would solw down and stop by itself. the clutch was only half stroke, a cut o ring,first day, on the cover by the dipstick.bad oil leak. Stalling issue was a cracked intake and bad intake gasket. Rear exaust Y pipe broke at 5K. Now this problem,and the dealer where I bought it suggested I put louder pipes on it and take it to another shop, to see if they can find anything wrong. Bloomington H/D, Indiana
Except for a Stage 1, air filter kit& download, it,s stock. It has sin 3 in all 3 holes for now. Since delivery/new every adjustment to be made to the drivetrain has been made. Upon delivery, the primary and drive belt was so tight you could not push the bike, and going down the road/pull the clutch in it would solw down and stop by itself. the clutch was only half stroke, a cut o ring,first day, on the cover by the dipstick.bad oil leak. Stalling issue was a cracked intake and bad intake gasket. Rear exaust Y pipe broke at 5K. Now this problem,and the dealer where I bought it suggested I put louder pipes on it and take it to another shop, to see if they can find anything wrong. Bloomington H/D, Indiana
6th Gear
Joined: Jun 2007
Posts: 14
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From:
RE: Oil presure problem
just replaced my oil sending unit, still flickering. checked oil pressure and it was at 40/ 2k rpms. I think i hear A kind of chaffing when bike is heated and run hard. Not sure what to do next. How do I check to see If oil pump is bad or going bad? thanks
6th Gear
Joined: Jun 2007
Posts: 14
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RE: Oil presure problem
How about after all that I pulled the light bar out and noticed the baulb was going bad (FROSTED) but still flickering. I went to the dealer and I need to buy the whole light unit (46 bucks) one week to get in. If I were to doit again I would of checked the baulb before doing anything else.
Stellar HDF Member
Joined: Sep 2006
Posts: 3,236
Likes: 95
From: lancaster, pa
RE: Oil presure problem
Once I heard of bad oil, where cardboard had accidently gottin into oil. After hearing this and other reasons I checked the valve filter. dont know if these are still on bike(guess i could look
) I was hard to unscrew and was clean but that could be a clue? hopen its somethin simple grif good luck
) I was hard to unscrew and was clean but that could be a clue? hopen its somethin simple grif good luck
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