Harmonic damper pulley 4200

T

TimR

Member
Messages
2,731
Has anyone tried removing the damper pulley from their 4200...?
Ive read of a special tool, and I realise I could probably lock the flywheel with a bar if I had two pairs of hands...!
Perhaps there is enough compression to get the screw undone if I leave it in gear...?
It isnt a QP...so when others have been able to get an impact in there to undo it..I seriously doubt this will work on a 4200...
Im looking at removing the crankcase front cover to stem a water ( and oil) leak. I could consider removing the radiators as this could make life much easier all round but with aircon gases an 'all, Im not up for this at home....

cheers.
 
T

TimR

Member
Messages
2,731
Oneball said:
Try putting the car in gear
Click to expand...
That works...!
Now to manage its removal from the shaft as I wont get a puller in there...!
Fun and games.
Run it 'til hot ( got to drop the oil anyway) and working quickly, undo the fixing bolt and remove whilst hot and co-operative...?! ( dont laugh!! )
Sounds like a plan to me...:D
 
Gp79

Gp79

Member
Messages
1,398
It is on very tight with loctite, I needed to borrow a decent / expensive impact gun to get it off.
Well worth trying with a power bar with car in gear but think the best bet is the rads out the way so you can properly get on it.
 
  • Like
Reactions: Zep
T

TimR

Member
Messages
2,731
Gp79 said:
It is on very tight with loctite, I needed to borrow a decent / expensive impact gun to get it off.
Well worth trying with a power bar with car in gear but think the best bet is the rads out the way so you can properly get on it.
Click to expand...
Not sure if I’ve understood your meaning exactly - I’ve machined a socket to fit and can turn it using a bar with the car in gear. I tried before dismantling everything first...
..the business of removing it from the shaft once the screw is removed is what’s concerning me. I imagine it’s on a taper Greg....?
Are you saying it’s fitted to the taper(?) with loctite?
I suppose I am seriously considering fan & rad removal for access anyway; this may enable access with a puller if it’s obstinate so there is that...If it falls off once unscrewed I’d be happy. I might then be able to back track on the major surgery approach some....
 
Last edited:
Oneball

Oneball

Member
Messages
11,118
TimR said:
Not sure if I’ve understood your meaning exactly - I’ve machined a socket to fit and can turn it using a bar with the car in gear. I tried before dismantling everything first...
..the business of removing it from the shaft once the screw is removed is what’s concerning me. I imagine it’s on a taper Greg....?
Click to expand...

I doubt it’s on a taper. Can’t think of any engine I’ve come across that does.
 
Gp79

Gp79

Member
Messages
1,398
Sorry misunderstood, i was talking about removing the bolt.
If you have that done that is the hardest part.
The damper / pulley is just on straight shaft with a key and once moving comes off quite easily
 
T

TimR

Member
Messages
2,731
Gp79 said:
Sorry misunderstood, i was talking about removing the bolt.
If you have that done that is the hardest part.
The damper / pulley is just on straight shaft with a key and once moving comes off quite easily
Click to expand...
Nice one...
I was wondering what design they went with thinking it would likely be a production orientated decision.
Thanks for that !
 
T

TimR

Member
Messages
2,731
Oh goody - a woodruff key...!!
And there was me thinking that'd be the fiddliest of solutions to reinstate in situ...:)
 
T

TimR

Member
Messages
2,731
I should have gone to specsavers...:oops:
I wasnt turning the screw after all...its as tight as a fishs ar5e...and that's watertight...! :D
 
Gp79

Gp79

Member
Messages
1,398
i borrowed a Makita DTW1002 with 1600Nm loosening torque and it took a few attempts to remove the bolt
 
T

TimR

Member
Messages
2,731
Access is a pain - I opted for the easy way...
Happily, my lil' rattle gun had that bolt out of there first time of asking..phew !
 

Attachments

  • IMG_1185.JPG
    IMG_1185.JPG
    150.6 KB · Views: 30
  • IMG_1186.JPG
    IMG_1186.JPG
    69.4 KB · Views: 33
  • IMG_1187.JPG
    IMG_1187.JPG
    134.1 KB · Views: 41
Kyle4200

Kyle4200

Junior Member
Messages
251
TimR said:
Has anyone tried removing the damper pulley from their 4200...?
Ive read of a special tool, and I realise I could probably lock the flywheel with a bar if I had two pairs of hands...!
Perhaps there is enough compression to get the screw undone if I leave it in gear...?
It isnt a QP...so when others have been able to get an impact in there to undo it..I seriously doubt this will work on a 4200...
Im looking at removing the crankcase front cover to stem a water ( and oil) leak. I could consider removing the radiators as this could make life much easier all round but with aircon gases an 'all, Im not up for this at home....

cheers.
Click to expand...
I have a pretty decent new condition crank shaft pulley off a 4200. How’s the rubber looking in yours? They are very expensive on EuroSpares (£,£££s) I was trying to shift mine a couple of years ago for a couple of hundred if anyone’s interested. I no longer have the 4200.
 
T

TimR

Member
Messages
2,731
I continue to question my own sanity as this current labour of love is more labour than love...
Its a lot of wrenching to get at this culprit here, a failed o-ring - at least I can give the engine bay a clean up and hopefully stem the oil leaking past the pulley shaft seal by replacing that.
Also planning to replace cam cover and spark plug gaskets....
 

Attachments

  • IMG_1201.JPG
    IMG_1201.JPG
    71.4 KB · Views: 23
Last edited:
You must log in or register to reply here.