Could this be fixed?...

[iconicbikesrider]

2012 Street Glide with 20K miles. Bone stock engine and transmission just some chrome do-das.

Hoping someone may advice how to correct this problem. And if by the time I finished trying to explain the problem you could put in better words, do so. Hoping someone may advice with the repair.

When bike is cold, bike starts as is suppose to start. A touch of the starting button, bike starts right up.

Now...when bike is hot, same starting process but bike makes a loud noise, like a thump, then starts right up. Appears as if the engine is "stuck and gets loose" with a thumping noise.

Within about 2 years after the bike was purchased, burnt and had to replace a starter.
Within a year, the replacement starter got burnt and was replaced by a "H-D High Performance 1.4K" starter.
The thump/noise issue still persist. Annoying noise/thump when is hot at starting.

How do I get rid of this issue? What's the fix? Advice will be greatly appreciated.

[Hogman]

Is this one of those Infamous Compensator issues? Ron or Bruce (Or??) Would Probably have Better Answers than I would, We'll Let the REAL Experts Weigh in.  They ARE here!   
Sorry for the No Help, but it'll keep it up Front for you.
Good Luck!


ME

[rbabos]

Lifter bleed down when hot or compensator. Possible combo of both.
Ron

[iconicbikesrider]

"Lifter bleed down when hot or compensator. Possible combo of both.
Ron"


Thanks guys.

Ron, would you elaborate a bit more? What's the fix? Replacing Lifters and Compensators? Issue is when engine is hot. Thanks a lot!

[rigidthumper]

a 2012 FLHX should have a 103 motor, and those came with compression releases- anybody check to see if they're enabled or working? I've got a 120 @ 11.3:1 static and still starts fine on the stock (original) starter.

[iconicbikesrider]

2012 Street Glide stock engine is 103 CI
Bike is stock and I have never heard of Compressor Release. Where should I look for it?

[Ohio HD]

a 2012 FLHX should have a 103 motor, and those came with compression releases- anybody check to see if they're enabled or working? I've got a 120 @ 11.3:1 static and still starts fine on the stock (original) starter.

   

[rbabos]

"Lifter bleed down when hot or compensator. Possible combo of both.
Ron"


Thanks guys.

Ron, would you elaborate a bit more? What's the fix? Replacing Lifters and Compensators? Issue is when engine is hot. Thanks a lot!

In a hot engine restart , depending on how long it sits prior to the start , lifters might bleed down some. This advances intake closing and raises the compression higher then normal. A weak spring in the compensator will cause the rotation from the starter to hit a wall at the end of compensator travel, then it will continue on or cause a grinding sound in the starter clutch. This can be the comp itself or a by product of the higher compression from lifter bleed giving the effect of a bad comp.
Also good point from rigidthumper to make sure the releases are working. Could start fine with a cold engine but can really compound issues with the start process when hot. If it's the releases, then the other two likely don't apply.
I'd start with the releases being the easiest. Can't believe I missed that one.
Ron

[fatboy]

"Lifter bleed down when hot or compensator. Possible combo of both.
Ron"


Thanks guys.

Ron, would you elaborate a bit more? What's the fix? Replacing Lifters and Compensators? Issue is when engine is hot. Thanks a lot!

In a hot engine restart , depending on how long it sits prior to the start , lifters might bleed down some. This retards the cam timing to create a later intake closing and raises the compression higher then normal. A weak spring in the compensator will cause the rotation from the starter to hit a wall at the end of compensator travel, then it will continue on or cause a grinding sound in the starter clutch. This can be the comp itself or a by product of the higher compression from lifter bleed giving the effect of a bad comp.
Also good point from rigidthumper to make sure the releases are working. Could start fine with a cold engine but can really compound issues with the start process when hot. If it's the releases, then the other two likely don't apply.
I'd start with the releases being the easiest. Can't believe I missed that one.
Ron

Retarted cam = less compression ... later intake closing!

[rbabos]

"Lifter bleed down when hot or compensator. Possible combo of both.
Ron"


Thanks guys.

Ron, would you elaborate a bit more? What's the fix? Replacing Lifters and Compensators? Issue is when engine is hot. Thanks a lot!

In a hot engine restart , depending on how long it sits prior to the start , lifters might bleed down some. This retards the cam timing to create a later intake closing and raises the compression higher then normal. A weak spring in the compensator will cause the rotation from the starter to hit a wall at the end of compensator travel, then it will continue on or cause a grinding sound in the starter clutch. This can be the comp itself or a by product of the higher compression from lifter bleed giving the effect of a bad comp.
Also good point from rigidthumper to make sure the releases are working. Could start fine with a cold engine but can really compound issues with the start process when hot. If it's the releases, then the other two likely don't apply.
I'd start with the releases being the easiest. Can't believe I missed that one.
Ron

Retarted cam = less compression ... later intake closing!

Correct ,early intake close raises compression.
Ron