Supercharger problem?
#1
Supercharger problem?
Had my XJR in at a local European car specialty shop for fuel pumps. The mechanic directed my attention to an “interesting” noise the engine is making. The noise seems to only happen when the supercharger is changing its RPM.
I made a video of the situation; does anyone know if this is definitely a supercharger related issue?
Car is a 2002 XJR
68,000 miles
the noise is the "clanking" right at start up and at the beginning of the engine revs.
MVI 2011 - YouTube
I made a video of the situation; does anyone know if this is definitely a supercharger related issue?
Car is a 2002 XJR
68,000 miles
the noise is the "clanking" right at start up and at the beginning of the engine revs.
MVI 2011 - YouTube
#2
The following users liked this post:
JaguarXJR02 (10-21-2011)
#3
"clanking"? as in a bicycle chain rubbing against a chain guard?
That would be cam tensioners/chain.
The supercharger does not change speed independently of the engine. So, it could be anything changing speed.
On the other hand, if it is at the supercharger drive snout, it is the supercharger drive. Rebuild kits are available.
That would be cam tensioners/chain.
The supercharger does not change speed independently of the engine. So, it could be anything changing speed.
On the other hand, if it is at the supercharger drive snout, it is the supercharger drive. Rebuild kits are available.
The following users liked this post:
JaguarXJR02 (10-21-2011)
#4
Yep, drop the SC belt off to confirm - the engine will run without issues with the SC disconnected, if the noise isn't there, you can assume its the charger - your model year hopefully means your engine has metal tensioners, so we could rule out timing parts making the noise, possibly....
Is the noise more prevalent when it comes off revs? If so you'll need one of these fitting....it's the one thing that can cause this kind of noise. The coupler.
Eaton supercharger coupler M90 Thunderbird Etc New BIN | eBay
Is the noise more prevalent when it comes off revs? If so you'll need one of these fitting....it's the one thing that can cause this kind of noise. The coupler.
Eaton supercharger coupler M90 Thunderbird Etc New BIN | eBay
The following users liked this post:
JaguarXJR02 (10-21-2011)
#5
Yep, drop the SC belt off to confirm - the engine will run without issues with the SC disconnected, if the noise isn't there, you can assume its the charger - your model year hopefully means your engine has metal tensioners, so we could rule out timing parts making the noise, possibly....
Is the noise more prevalent when it comes off revs? If so you'll need one of these fitting....it's the one thing that can cause this kind of noise. The coupler.
Eaton supercharger coupler M90 Thunderbird Etc New BIN | eBay
Is the noise more prevalent when it comes off revs? If so you'll need one of these fitting....it's the one thing that can cause this kind of noise. The coupler.
Eaton supercharger coupler M90 Thunderbird Etc New BIN | eBay
Where does that coupler install in the SC?
Vector
#6
The following users liked this post:
JaguarXJR02 (10-21-2011)
#7
I use these type of couplers to repair the Eaton M112. The M90 uses the same coupler.
Eaton GM Ford OEM Supercharger Coupler NEW | eBay
bob gauff
Eaton GM Ford OEM Supercharger Coupler NEW | eBay
bob gauff
The following users liked this post:
JaguarXJR02 (10-21-2011)
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#13
I'm not the OP but I got a ton of pics in this thread. https://www.jaguarforums.com/forum/x...-thread-61113/
I can also post some more if you want to see anything in particular as I took a ton of pics and they are not all in the thread.
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#15
"clanking"? as in a bicycle chain rubbing against a chain guard?
That would be cam tensioners/chain.
The supercharger does not change speed independently of the engine. So, it could be anything changing speed.
On the other hand, if it is at the supercharger drive snout, it is the supercharger drive. Rebuild kits are available.
That would be cam tensioners/chain.
The supercharger does not change speed independently of the engine. So, it could be anything changing speed.
On the other hand, if it is at the supercharger drive snout, it is the supercharger drive. Rebuild kits are available.
#16
Go to UK Ebay and buy yourself IMO a 3lb stainless steel pulley and have PSE put it on for you and have them rebuild the SC.
#17
https://www.jaguarforums.com/forum/x...ate-xjr-66270/
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