Well maintained 2002 Fat Boy with 30k miles ... reliable or headaches?
#21
I asked the owner about this and he only said the tensioner was replaced by the dealer which brings up the following questions:
1. What is the difference between a cam drive and a cam chain tensioner?
2. If one (or the other) *breaks* while riding, what is the result? Engine failure, no power, pull over.
3. If the tensioner was replaced at the dealer, I'll assume they replaced it with a stock tensioner so if the stock tensioner is weak to begin with I wouldn't think that would solve the problem. Apologies if these are novice questions but can anyone explain how this works and where the failure point is on these models. I appreciate it.
Going to test ride it this weekend
1. What is the difference between a cam drive and a cam chain tensioner?
2. If one (or the other) *breaks* while riding, what is the result? Engine failure, no power, pull over.
3. If the tensioner was replaced at the dealer, I'll assume they replaced it with a stock tensioner so if the stock tensioner is weak to begin with I wouldn't think that would solve the problem. Apologies if these are novice questions but can anyone explain how this works and where the failure point is on these models. I appreciate it.
Going to test ride it this weekend
Btw, if the tensioners explode, chances are the motor will get trashed. JMO
#22
The dealer or somebody must have a record of what procedure was performed. Ask the owner how much he paid to have the work done, the upgrade kit used to cost about $500.00, and then their labor. I paid an indy about $900.00 to do my 05 Wide Glide, but that included all new gaskets for anything he touched.
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jbarr1 (01-30-2018)
#23
1. the cam chain tensioner is a part of the cam drive. The cam drive includes a chain driven by the crankshaft, which drives one of the camshafts. There is an additional chain drive between the two camshafts. Both chains have cam chain tensioners. Early ones wore through the pressure pads on the tensioners.
2. If left too long the metal backing of the tensioners contacts the metal chain, resulting in metal particles working their way through the engine, with catastrophic results.
3. Later spec stock cam tensioners are greatly improved, last a great deal longer than the originals and are a valid upgrade. There are several more grand upgrades available, including a completely new SE cam drive assembly, or aftermarket gear-drive cams, both of which come with an upgraded oil pump as a bonus. Until the twin cams all Harleys had gear-drive cams.
Hope that helps. You can see the cam drive assembly on-line here.
2. If left too long the metal backing of the tensioners contacts the metal chain, resulting in metal particles working their way through the engine, with catastrophic results.
3. Later spec stock cam tensioners are greatly improved, last a great deal longer than the originals and are a valid upgrade. There are several more grand upgrades available, including a completely new SE cam drive assembly, or aftermarket gear-drive cams, both of which come with an upgraded oil pump as a bonus. Until the twin cams all Harleys had gear-drive cams.
Hope that helps. You can see the cam drive assembly on-line here.
Last edited by grbrown; 01-29-2018 at 03:05 PM. Reason: Added link.
#24
Someone said if I had the VIN that I could go to an HD site to find out what services were done to the bike.
I went to:
https://serviceinfo.harley-davidson.com
Typed in the VIN but all that was returned was:
VIN 1HD1BXB181Y058100
Model name 2001 FAT BOY (FLSTFI)
Model year 2001
(Which tells me nothing about how the cam issue was addressed)
So it looks like an '01, not an '02 so now I'm wondering if it's FI or carburetor?
Also what is FLSTFI? Hopefully the FI at the end means fuel injection?
I went to:
https://serviceinfo.harley-davidson.com
Typed in the VIN but all that was returned was:
VIN 1HD1BXB181Y058100
Model name 2001 FAT BOY (FLSTFI)
Model year 2001
(Which tells me nothing about how the cam issue was addressed)
So it looks like an '01, not an '02 so now I'm wondering if it's FI or carburetor?
Also what is FLSTFI? Hopefully the FI at the end means fuel injection?
#25
Someone said if I had the VIN that I could go to an HD site to find out what services were done to the bike.
I went to:
https://serviceinfo.harley-davidson.com
Typed in the VIN but all that was returned was:
VIN 1HD1BXB181Y058100
Model name 2001 FAT BOY (FLSTFI)
Model year 2001
(Which tells me nothing about how the cam issue was addressed)
So it looks like an '01, not an '02 so now I'm wondering if it's FI or carburetor?
Also what is FLSTFI? Hopefully the FI at the end means fuel injection?
I went to:
https://serviceinfo.harley-davidson.com
Typed in the VIN but all that was returned was:
VIN 1HD1BXB181Y058100
Model name 2001 FAT BOY (FLSTFI)
Model year 2001
(Which tells me nothing about how the cam issue was addressed)
So it looks like an '01, not an '02 so now I'm wondering if it's FI or carburetor?
Also what is FLSTFI? Hopefully the FI at the end means fuel injection?
#26
Someone said if I had the VIN that I could go to an HD site to find out what services were done to the bike.
I went to:
https://serviceinfo.harley-davidson.com
Typed in the VIN but all that was returned was:
VIN 1HD1BXB181Y058100
Model name 2001 FAT BOY (FLSTFI)
Model year 2001
(Which tells me nothing about how the cam issue was addressed)
So it looks like an '01, not an '02 so now I'm wondering if it's FI or carburetor?
Also what is FLSTFI? Hopefully the FI at the end means fuel injection?
I went to:
https://serviceinfo.harley-davidson.com
Typed in the VIN but all that was returned was:
VIN 1HD1BXB181Y058100
Model name 2001 FAT BOY (FLSTFI)
Model year 2001
(Which tells me nothing about how the cam issue was addressed)
So it looks like an '01, not an '02 so now I'm wondering if it's FI or carburetor?
Also what is FLSTFI? Hopefully the FI at the end means fuel injection?
#27
Someone said if I had the VIN that I could go to an HD site to find out what services were done to the bike.
I went to:
https://serviceinfo.harley-davidson.com
Typed in the VIN but all that was returned was:
VIN 1HD1BXB181Y058100
Model name 2001 FAT BOY (FLSTFI)
Model year 2001
(Which tells me nothing about how the cam issue was addressed)
So it looks like an '01, not an '02 so now I'm wondering if it's FI or carburetor?
Also what is FLSTFI? Hopefully the FI at the end means fuel injection?
I went to:
https://serviceinfo.harley-davidson.com
Typed in the VIN but all that was returned was:
VIN 1HD1BXB181Y058100
Model name 2001 FAT BOY (FLSTFI)
Model year 2001
(Which tells me nothing about how the cam issue was addressed)
So it looks like an '01, not an '02 so now I'm wondering if it's FI or carburetor?
Also what is FLSTFI? Hopefully the FI at the end means fuel injection?
#28
Not an issue but rather what was replaced and what components were used.
#29
The I in FLSTFI does mean injected, although it's the earlier MM injection rather than the later Delphi. An alternative to expensive billet camplates are stock 07 and later camplates, which uses a hydraulicly operated tensioner instead of a spring loaded one, like yours were originally equipped with. I got one off eBay for $100 complete with the oil pump. Bolted right on, but you have to use a conversion cam. In my case an Andrews cam with an N suffix (21N, 26N, etc.). The later plates do not use a bearing, so the cams have a different o.d..
#30
The I in FLSTFI does mean injected, although it's the earlier MM injection rather than the later Delphi. An alternative to expensive billet camplates are stock 07 and later camplates, which uses a hydraulicly operated tensioner instead of a spring loaded one, like yours were originally equipped with. I got one off eBay for $100 complete with the oil pump. Bolted right on, but you have to use a conversion cam. In my case an Andrews cam with an N suffix (21N, 26N, etc.). The later plates do not use a bearing, so the cams have a different o.d..