Oil temperature question
Good morning, Guys.
I ride an '03 FLHT. After 48K, I had to replace my cam tensioners. Prior to doing that replacement, which was done by an INDY - ex-HD mechanic, my oil temperature was between 220-230. After the change the operating temperature is now at 250.
Prior to that changeout I started using Amsoil 20-50 so that type of oil was constant - before and after.
The oil pressure on the bike is a constant 32lbs when being ridden. It drops to about 10 lbs when idling.
My concern is the increase in operating temperature w/o any cause?
Opinions, thoughts and suggestions appreciated.
TX
Ride In Peace
I ride an '03 FLHT. After 48K, I had to replace my cam tensioners. Prior to doing that replacement, which was done by an INDY - ex-HD mechanic, my oil temperature was between 220-230. After the change the operating temperature is now at 250.
Prior to that changeout I started using Amsoil 20-50 so that type of oil was constant - before and after.
The oil pressure on the bike is a constant 32lbs when being ridden. It drops to about 10 lbs when idling.
My concern is the increase in operating temperature w/o any cause?
Opinions, thoughts and suggestions appreciated.
TX
Ride In Peace
Just an opinion, but 250 isn't a point of concern. When I bought my 09 Ultra, stock on a hot Georgia day and moderate traffic mine was hitting 270 and sometimes higher (with Syn III). Did a stage 1, put in an oil cooler, and took those blasted vent doors off the lowers and now I am 250 or lower routinely with stop and go traffic.
Might want to check to make sure your oil level is where it needs to be...but other than that I wouldn't be worrying about this.
Might want to check to make sure your oil level is where it needs to be...but other than that I wouldn't be worrying about this.
Last edited by SlowRain; Sep 27, 2010 at 09:11 AM.
The engine may be sumping. A condition where the oil pump may not be scavenging at capacity which will leave too much oil in the crankcase. The wheels will churn the oil and it will run hot. Depending on the degree to which the pump is not scavenging, the bike may also feel sluggsh and down on power.
The oil pump may not be aligned and/or the o-ring at the crank case scavenge port may be pinched and not sealing properly. You can check for sumpng by opening up the crankcase drain plug after a ride to see how much oil comes out. If more that 4-6 ounces comes out, she is sumping. Be careful removing/reinstalling the crankcase drain plug. It should come out easily when the engine is hot. It is a tapered pipe plug and should be snugged up with some thread sealant when reinstaling. You can overtighten and crack the crankcase so be careful.
If she is sumping you will need to pull the cam plate and reinstall with new scavenge port o-ring and a properly aligned oil pump.
The oil pump may not be aligned and/or the o-ring at the crank case scavenge port may be pinched and not sealing properly. You can check for sumpng by opening up the crankcase drain plug after a ride to see how much oil comes out. If more that 4-6 ounces comes out, she is sumping. Be careful removing/reinstalling the crankcase drain plug. It should come out easily when the engine is hot. It is a tapered pipe plug and should be snugged up with some thread sealant when reinstaling. You can overtighten and crack the crankcase so be careful.
If she is sumping you will need to pull the cam plate and reinstall with new scavenge port o-ring and a properly aligned oil pump.
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fireaxxe
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Nov 20, 2010 01:15 PM









