Member Since: 08 Nov 2016
Location: Maldon, Essex
Posts: 515
Disco 3 front propshaft advice
I'm pretty sure that the rearmost joint on my front prop is shot.
Art here seems to be a bit of variety regarding price and brands - are there any to be avoided?
Also do I need to purchase new bolts or can the old be reused?
Cheers
MikeNot such a Disco Newbie now!
IID BT
20th Feb 2017 12:56 pm
Mikeyb
Member Since: 08 Nov 2016
Location: Maldon, Essex
Posts: 515
Well I bit the bullet and purchased a new front prop. LRdirect looked to be the cheapest at £142 all in delivered for a Britpart GKN one.
Replacement took a bit longer than expected, the bolts coming undone alright but with a lot of faffing around required to actually wriggle the prop out from between the flanges and out from under the car.
In the end I disconnected the gearbox mount and jacked the front of the transfer box up. This ws enough to slip the prop away from the flanges but not past the gearbox crossmember to get it away from the car.
This I achieved by removing 3 out of the 4 crossmember bolts and dropping the passenger side down to allow clearance to slip the prop out. The bolts were very tight and I also slipped off the exhaust hanger on the passenger side and unbolted the fuel pipe clamp from the top of the crossmember on the drivers side.
Once off, it became obvious that the rear joint was completely shot, most likely due to a tear in the rubber
Click image to enlarge
Click image to enlarge
The grease in the CV was dust
Click image to enlarge
The rust had got into the splines too
Click image to enlarge
The wear was obvious
Click image to enlarge
Not such a Disco Newbie now!
IID BT
4th Mar 2017 10:19 am
Mikeyb
Member Since: 08 Nov 2016
Location: Maldon, Essex
Posts: 515
I'm delighted to find that the fitment of the new prop has not only cured the awful rotational metallic clunk and grinding noise, but also the whine that I had attributed to diff or front wheel bearing, the vibration (that I had also attributed to diff!) and 90% of the drivetrain clunk when lifting off/picking up drive.
I now have an almost quet, smooth Disco. Unfortnately I found a worn rear upper arm bush when jacked up and spinning wheels to track down the original noise, so that's another job on the list!
I know that I have a shot centre bearing on the rear prop and also a fair bit of excess movement in one of the CV's so I'll purchase a rear prop when funds allow.
Happy days!Not such a Disco Newbie now!
IID BT
4th Mar 2017 1:53 pm
ScottyPlugPlug
Member Since: 09 Sep 2016
Location: Milton Keynes
Posts: 15
Do you think my problem could also be the front prop?
Can they cause metallic knocking, like a metal hammer on the drivetrain?
I have an intermittent metallic knocking sound which is speed related and coming from the centre-front area of my D3. It started 2 days ago and is rapidly getting worse to the point where I think I need to stop driving it.
It's not noticeable at higher speeds or higher loads. I've checked for wheel bearings, driveshaft CV's etc but all seem good. If I jack the front up so both wheels are free to spin, I can make a similar metallic sound by rocking the wheel forward and back but that sound appears to be coming from near the input to the front diff (probably just taking up the backlash?).
Today I changed the front diff oil (I'm at 75k miles). It was like melted dark chocolate and I had a reasonable amount of fine swarf on the drainplug magnet but no big chunks of metal. New oil hasn't improved things.
Any ideas/suggestions would be greatly appreciated.
Scott
24th Mar 2018 11:43 pm
geoffsnook
Member Since: 13 Jun 2014
Location: south wales
Posts: 3169
I have just changed my front prop as it was making the noises you say scottyplugplug Discovery 3 se gone
Range rover sport supercharged here:)
25th Mar 2018 9:36 am
ScottyPlugPlug
Member Since: 09 Sep 2016
Location: Milton Keynes
Posts: 15
My noise turned out to be the front prop as you suggested, thanks. It was completely dry, no grease at all at the front. Seals were all fine, so after being re-packed with grease and it's back to normal.
You cannot post new topics in this forum You cannot reply to topics in this forum You cannot edit your posts in this forum You cannot delete your posts in this forum You cannot vote in polls in this forum
