dougnuts!!!!

jimbodisco · Jul 27, 2009

hi all, hope you can help!!!

i have a 98 disco 300 tdi, it shreaded the rear rubber dougnut which sits between the rear prop and the diff.
i replaced it including the really annoying bearing thingy. did everything up nice and tight and its shreading the new one after 2-3months of use, none of which was major off road.
any ideas why this is happening again??
what can i do to stop it happening again??
many thanks
james.

thebiglad · Jul 27, 2009

jimbodisco said:
hi all, hope you can help!!!

i have a 98 disco 300 tdi, it shreaded the rear rubber dougnut which sits between the rear prop and the diff.
i replaced it including the really annoying bearing thingy. did everything up nice and tight and its shreading the new one after 2-3months of use, none of which was major off road.
any ideas why this is happening again??
what can i do to stop it happening again??
many thanks
james.

Hi James, check the alignment between the propshaft and the diff from the side.

discool · Jul 27, 2009

If your disco is lifted then it happens I believe, other than go for genuine parts dougnut or a prop that doesn't have one like a 1997-8 V8.

jimbodisco · Jul 27, 2009

hi, it wasnt a genuine part, i have standard height suspension.

will replace again with genuine!

what am i looking for with the alingment?? it has a bigger gap at the bottom then the top, but thats just from the angle of the prop.
cheers

discool · Jul 27, 2009

The part no. is/was STC2794 Rubber Coupling Kit - 1995 onwards -[FONT=Verdana, Arial, Helvetica]Includes rubber coupling, bolts, washers & nuts.[/FONT]

jimbodisco · Jul 27, 2009

thanks, thats great, think i might go for a v8 prop. i dont want to spend out on another dougnut and it go again.
james

jimbodisco · Jul 27, 2009

forgot to ask before......
im supossed to be traverling from oxfordshire to pembrokeshire about 400 miles round trip on wednesday night, at the momment there is no vibration from the dougnut, just visual deteriation. will it hold out, whats the worst that could happen??

gR@HaM · Jul 27, 2009

Mine has a couple of small cracks in the rubber, anyone know if it be an MOT failure??

discool · Jul 28, 2009

jimbodisco said:
whats the worst that could happen??

Worse case, a 'flailling' propshaft as speed could rip the out the bottom of the disco, brake and fuel lines and even lift the disco off the ground before breaking away fully.

gR@HaM said:
Mine has a couple of small cracks in the rubber, anyone know if it be an MOT failure??

Vehicle transmission is not a testable in an MOT according to the MOT manual.
MOT Testers Manual

listerdiesel · Jul 28, 2009

jimbodisco said:
forgot to ask before......
I'm supposed to be travelling from Oxfordshire to Pembrokeshire about 400 miles round trip on Wednesday night, at the moment there is no vibration from the doughnut, just visual deterioration. will it hold out, whats the worst that could happen??

You'll get plenty of advance notice of failure, they don't fail 'instantly'.

Our Disco 2 V8 has the vibration at 65mph and has done 700 miles like it. New doughnuts should be here today, one to fit and one spare.

Peter

antonyj101 · Jul 28, 2009

hi all, i would recomend removing the rubber dougnut, go to your local scrap yard look for a 200tdi disco remove ther prop, and you will need the flange off the diff you will need take the little spacer from behind, the take the prop off yours and the flange this will be lot more durable than the rubber dougnut.

done it myself and done more than 3000miles and it lifted 4".

hope this helps

jimbodisco · Aug 16, 2009

hi, all.
just to let you know i have sorted it out.
Got hold of a 200 tdi rear prop with all the gubbins.
the hardest part was taking the spigot off. i just poped a small piece of bar down the hole in the centre then screw in a bolt behind it and the spigot slowly came off, bobs your uncle!!
took about half hour!!
thanks for all you help!!
jimbo!

dougnuts!!!!

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