Knocking noise

Big lumps of metals and spanners. Including servicing and fluids.

Moderators: User administrators, Moderators

JeffRoo
Registered user
Posts: 190
Joined: 04 Sep 2016, 10:28
80-90 Mem No: 15579
Location: Taunton

Knocking noise

Post by JeffRoo »

Hi All, my Caravelle (84) has developed an intermittent knocking noise when turning hardish left. Initial thoughts CV joints. However the noise only appears with load on the engine, ie with some throttle. I found this out as I went round a corner with no throttle to listen a little closer if it was front or back and it didn’t knock. Any ideas before I pull the cv’s apart?
84 Caravelle 1.9DG

User avatar
marlinowner
Registered user
Posts: 1530
Joined: 28 Jan 2014, 12:02
80-90 Mem No: 13646
Location: Scottish Borders

Re: Knocking noise

Post by marlinowner »

Check wheel nuts.
1993 SA VW T25/T3 2.5i Microbus/homebrew camper
1981/1968 Marlin Kitcar TR6 Engine

User avatar
bigbadbob76
Registered user
Posts: 1733
Joined: 07 Nov 2016, 14:41
80-90 Mem No: 15707
Location: Isle of Skye

Re: Knocking noise

Post by bigbadbob76 »

Did you figure out if it was front or back?
Is it a synchro?
'86 1.9 DG, 4 spd, tintop, camper conversion.
Split case club member.

Bubble Meister
Registered user
Posts: 255
Joined: 26 Sep 2007, 18:41
80-90 Mem No: 4246
Location: Lincolnshire

Re: Knocking noise

Post by Bubble Meister »

Wheel nuts - caught out twice now with nuts being loose.
Introducing Bubble, the B reg '85, 1.9 DF WBX (currently with a DG fitted!)

JeffRoo
Registered user
Posts: 190
Joined: 04 Sep 2016, 10:28
80-90 Mem No: 15579
Location: Taunton

Re: Knocking noise

Post by JeffRoo »

Thanks all, will check wheel nuts and let you know.
84 Caravelle 1.9DG

User avatar
ChrisTriple
Registered user
Posts: 457
Joined: 18 Aug 2012, 17:35
80-90 Mem No: 12111
Location: cotswolds, gloucestershire
Contact:

Re: Knocking noise

Post by ChrisTriple »

Engine mounts
84 Devon Sunrise PopTop, DF. Campershack LPG.
Full Body resto completed 04-17

http://www.T25Camper.com" onclick="window.open(this.href);return false;

User avatar
kevtherev
Registered user
Posts: 18830
Joined: 23 Oct 2005, 20:13
80-90 Mem No: 2264
Location: Country estate Wolverhampton Actually

Re: Knocking noise

Post by kevtherev »

CV joint
I changed all four recently with exactly this symptom
AGG 2.0L 8V. (Golf GTi MkIII)

vwroyd
Registered user
Posts: 18
Joined: 09 Sep 2013, 19:43
80-90 Mem No: 12472
Location: Somerset

Re: Knocking noise

Post by vwroyd »

Hi all,

I have this exact issue with my 2WD. Around roundabouts, if you put your foot on the clutch the noise will stop. Strange, I would love to sort this issue.

I have checked all of the above, anymore thoughts??

Many Thanks

george2490
Registered user
Posts: 313
Joined: 24 Mar 2015, 11:44
80-90 Mem No: 14339
Location: Aberfoyle

Re: Knocking noise

Post by george2490 »

Gearbox mount.
I had this and found the bush was completely detached.

Sent from my SM-A320FL using Tapatalk
2.0 CU

vwroyd
Registered user
Posts: 18
Joined: 09 Sep 2013, 19:43
80-90 Mem No: 12472
Location: Somerset

Re: Knocking noise

Post by vwroyd »

Thanks, i'll check that out..

george2490
Registered user
Posts: 313
Joined: 24 Mar 2015, 11:44
80-90 Mem No: 14339
Location: Aberfoyle

Re: Knocking noise

Post by george2490 »

This is what was left of my bush. Image

Sent from my SM-A320FL using Tapatalk
2.0 CU

RogerT
Registered user
Posts: 1798
Joined: 10 May 2013, 11:59
80-90 Mem No: 13706
Location: Central Scotland

Re: Knocking noise

Post by RogerT »

Collapsed swing arm mount? Might be heard when accelerating or cornering, but in my case I’d describe it as infrequent rather than intermittent...
Have you ever seen an unhappy fool?

88 Transporter with hitop camper conversion, 1.6td.

User avatar
CovKid
Trader
Posts: 8409
Joined: 30 Apr 2006, 13:19
80-90 Mem No: 3529
Location: Ralph - Coventry (Retired)
Contact:

Re: Knocking noise

Post by CovKid »

Agree with Kev - CV joints.

Worn gearbox and/or engine mounts is easy to diagnose. If you can't reverse up a slope without severe juddering, it'll be mounts. If it clonks on corners, it'll be CV joints.
Roller paint your camper at home: http://roller.epizy.com/55554/" onclick="window.open(this.href);return false; for MP4 download.

JeffRoo
Registered user
Posts: 190
Joined: 04 Sep 2016, 10:28
80-90 Mem No: 15579
Location: Taunton

Re: Knocking noise

Post by JeffRoo »

Hi All, a little feedback, albeit a little late. Changed the CV joints and knocking noise disappeared. One end was ok, but the other was stiff as a board and dry as a bone. Change both ends and was very painless to do. Been up to the Outer Hebrides with it and no problem. Well that’s not entirely true, but no problem with the knocking noise!
:ok
84 Caravelle 1.9DG

ian prior
Registered user
Posts: 40
Joined: 04 Nov 2015, 18:26
80-90 Mem No: 0
Location: West Sussex, 1987 1.9 DG tin top

Re: Knocking noise

Post by ian prior »

All this techy stuff is very interesting! No problems like this on our DG, thank goodness....

Funnily enough, we took our 150,000-mile T25 all the way from West Sussex to the Outer Hebrides and back in May. We covered 2000 miles in 2 1/2 weeks, and had no problems whatsoever - these vans are magic!

Post Reply