Symptoms of sumping??
#2
11-22-2017 | 10:36 PM
Seasoned HDF Member
Joined: Sep 2009
Posts: 16,637
Likes: 5,614
From: SE Michigan
Last edited by Keithhu; 11-22-2017 at 10:38 PM.
#3
11-23-2017 | 01:42 PM
Road Warrior
Joined: Aug 2015
Posts: 1,712
Likes: 407
From: Puyallup, WA
Under normal conditions, the lower end should be lubricated by the rotating flywheels splashing a few ounces of oil from the bottom of the crankcase.
When "sumping" occurs; instead of just a few ounces (3 oz.) of oil being in the bottom of the crankcase, there are several ounces + 6+ ozs.), and the flywheels wind up spinning in a bath of oil. This causes severe drag, eats horsepower, creates heat, and slows the motor. While oil accumulates in the bottom of the case, other engine parts suffer from lack of oiling and excessive heat; then motor meltdown occurs.
Most noticeable symptom of sumping is reduced power after running motor for a length of time.
When "sumping" occurs; instead of just a few ounces (3 oz.) of oil being in the bottom of the crankcase, there are several ounces + 6+ ozs.), and the flywheels wind up spinning in a bath of oil. This causes severe drag, eats horsepower, creates heat, and slows the motor. While oil accumulates in the bottom of the case, other engine parts suffer from lack of oiling and excessive heat; then motor meltdown occurs.
Most noticeable symptom of sumping is reduced power after running motor for a length of time.
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Johnny Goodlife (04-01-2018)
#4
11-23-2017 | 02:48 PM
Seasoned HDF Member
Joined: Dec 2005
Posts: 17,311
Likes: 6,086
From: poway
Under normal conditions, the lower end should be lubricated by the rotating flywheels splashing a few ounces of oil from the bottom of the crankcase.
When "sumping" occurs; instead of just a few ounces (3 oz.) of oil being in the bottom of the crankcase, there are several ounces + 6+ ozs.), and the flywheels wind up spinning in a bath of oil. This causes severe drag, eats horsepower, creates heat, and slows the motor. While oil accumulates in the bottom of the case, other engine parts suffer from lack of oiling and excessive heat; then motor meltdown occurs.
Most noticeable symptom of sumping is reduced power after running motor for a length of time.
When "sumping" occurs; instead of just a few ounces (3 oz.) of oil being in the bottom of the crankcase, there are several ounces + 6+ ozs.), and the flywheels wind up spinning in a bath of oil. This causes severe drag, eats horsepower, creates heat, and slows the motor. While oil accumulates in the bottom of the case, other engine parts suffer from lack of oiling and excessive heat; then motor meltdown occurs.
Most noticeable symptom of sumping is reduced power after running motor for a length of time.
Last edited by Max Headflow; 11-23-2017 at 02:50 PM.
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#5
12-01-2019 | 08:49 PM
1st Gear
Joined: Dec 2019
Posts: 5
Likes: 1
From: MA
I have a 2018 Ultra Limited inTwisted Cherry, this week I had the bike serviced and all the fluids changed,.
I told the tech that she felt way slower and that a 06 stock HD Road King walked away from me.
They changed all the guilds and measured each one coming out of 5he bike. All levels were correct, or so we thought My bike mechanic thought about what I has said about the bike being slower then it was when new .
He changed 5he fluids and the next day he pushed it out of 5he shop and, wanted to mark 5he dip stick to monitor the bike, he took it for a 4 mile ride and then brought it into the shop and drained the crankcase, low and behold there was 20 ounces of oil in the in the motor not 3 -4 as HD designed . WELL I KNOW NOW WHAT SUMPING IS, this bike has 6;000 miles on it and HD wont stand behind it.
So I am now spending another $1;600 on a new oil pump which will rectify the problem, or so I,m told
I told the tech that she felt way slower and that a 06 stock HD Road King walked away from me.
They changed all the guilds and measured each one coming out of 5he bike. All levels were correct, or so we thought My bike mechanic thought about what I has said about the bike being slower then it was when new .
He changed 5he fluids and the next day he pushed it out of 5he shop and, wanted to mark 5he dip stick to monitor the bike, he took it for a 4 mile ride and then brought it into the shop and drained the crankcase, low and behold there was 20 ounces of oil in the in the motor not 3 -4 as HD designed . WELL I KNOW NOW WHAT SUMPING IS, this bike has 6;000 miles on it and HD wont stand behind it.
So I am now spending another $1;600 on a new oil pump which will rectify the problem, or so I,m told
#6
12-01-2019 | 09:17 PM
Intermediate
Joined: Jan 2019
Posts: 35
Likes: 7
From: ND
#7
12-01-2019 | 10:00 PM
Seasoned HDF Member
Joined: Sep 2009
Posts: 16,637
Likes: 5,614
From: SE Michigan
I have a 2018 Ultra Limited inTwisted Cherry, this week I had the bike serviced and all the fluids changed,.
I told the tech that she felt way slower and that a 06 stock HD Road King walked away from me.
They changed all the guilds and measured each one coming out of 5he bike. All levels were correct, or so we thought My bike mechanic thought about what I has said about the bike being slower then it was when new .
He changed 5he fluids and the next day he pushed it out of 5he shop and, wanted to mark 5he dip stick to monitor the bike, he took it for a 4 mile ride and then brought it into the shop and drained the crankcase, low and behold there was 20 ounces of oil in the in the motor not 3 -4 as HD designed . WELL I KNOW NOW WHAT SUMPING IS, this bike has 6;000 miles on it and HD wont stand behind it.
So I am now spending another $1;600 on a new oil pump which will rectify the problem, or so I,m told
I told the tech that she felt way slower and that a 06 stock HD Road King walked away from me.
They changed all the guilds and measured each one coming out of 5he bike. All levels were correct, or so we thought My bike mechanic thought about what I has said about the bike being slower then it was when new .
He changed 5he fluids and the next day he pushed it out of 5he shop and, wanted to mark 5he dip stick to monitor the bike, he took it for a 4 mile ride and then brought it into the shop and drained the crankcase, low and behold there was 20 ounces of oil in the in the motor not 3 -4 as HD designed . WELL I KNOW NOW WHAT SUMPING IS, this bike has 6;000 miles on it and HD wont stand behind it.
So I am now spending another $1;600 on a new oil pump which will rectify the problem, or so I,m told
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#8
12-01-2019 | 10:25 PM
Seasoned HDF Member
Joined: Jan 2008
Posts: 12,434
Likes: 9,412
From: State of Confusion
weird..so they measured the drained fluid, put the correct level in, then next morning wheeled it out cold and rode it for only 4 miles and it sumped just then? would think they would at least want to get it up to normal operating temp ..did they say the test ride validated the power loss? and yeah..$1600 for a new oil pump installed is an insanely high quote
#9
12-01-2019 | 11:56 PM
Banned
Joined: Jan 2019
Posts: 3,036
Likes: 1,009
From: Nunya.
