Mud-club

Vehicle & Technical => Defender => Topic started by: MuddyMachine on July 10, 2007, 21:27:26

Title: Pully removal
Post by: MuddyMachine on July 10, 2007, 21:27:26

I have just fitted a 200 disco engine to my 90. I need to change the cam belt as I don't know the history.

I have been trying for three hours to get the bottom pulley off (crank shaft)
It just wont come off. Am I missing something or do you just take off the big bolt and then pull it off.

I have tried using a puller, heat and lots of penetrating oil.

Any ideas?

Title: Pully removal
Post by: wizard on July 10, 2007, 22:08:18

Should be just the big bolt in the center.
Have you tried the puller and heat at the same time. Someone might have put a bit of locktite on !!!!

wizard :twisted:

Title: Pully removal
Post by: spinkster on July 10, 2007, 22:11:30

heat on the end of the crank??? is that advisable considering how well heat travels?

Title: Pully removal
Post by: extreme90 on July 10, 2007, 22:13:36

if the bolts off and it wont budge with a puller then its been loctited on
when i take them off i apply pressure with the puller
warm it up rapidly with the bottle and give it a sharp belt with a bar and lump hammer
usualy sorts the job out
dan

Title: Pully removal
Post by: MuddyMachine on July 10, 2007, 22:20:08

I have done all that :cry:  just wont come off. I left it dripping in penetrating oil and will have another go tomorrow.

Cheers all

Title: Pully removal
Post by: paul_humphreys on July 10, 2007, 22:38:08

Leave the puller on over night under load.

Paul

Title: Pully removal
Post by: Mutz on July 11, 2007, 19:17:41

Recon someone used loctite on the shaft instead of just the thread!

Mine fell off once i got the bolt out, but that took hours over 3 days!!

Good luck, but pressure over night seems a good idea as opposed to heat, as it might just crack it open if left over night.

Title: Pully removal
Post by: mark.yellow.series.3 on July 11, 2007, 19:59:35

buy your self a new pulley, and cut the old one off.
not worth knackering the crank with too much heat.

Title: Pully removal
Post by: MuddyMachine on July 11, 2007, 20:26:09

Yep after two days, 3 cans of pen oil, 1 broken  puller. The gas axe came out. Cut it off no probs, now just need to buy new one an change the belt.

Title: Pully removal
Post by: Mutz on July 11, 2007, 22:24:53

put plenty of copper eaze on the shaft before you fit new pulley!!!!!

Title: Pully removal
Post by: extreme90 on July 12, 2007, 19:22:23

Quote from: "Mutz"

put plenty of copper eaze on the shaft before you fit new pulley!!!!!

bad idea  :roll: i wouldnt do that....dry or locktight is best
the aux belts are only run off half a woodruf key, thats why locktight is put on
i personaly locktight mine as i dont want another broken crank again and spend all weekend repairing my engine  :roll:
its alot of pressure over a very small key
dan