Squealing noise.

This site contains affiliate links for which LandyZone may be compensated if you make a purchase.
payydg

payydg

Well-Known Member
Posts
3,930
Location
Aberdeenshire
The saga continues.

The Landy makes a squealing/screaming noise when I first put my foot on the accelerator after start up and lasts about 30 seconds. Only happens when accelerating and only immediately after start up and disappears after a min or so. Doesn't occur on tic over.

I thought it was a worn belt slipping but they seem tight enough so not sure.

I thought maybe one of the pumps but don't understand why it would disappear so quickly.

Help much appreciated. Will post a sound clip when I'm home
 
belt slipping if its only when first started ,alt will be trying to refill battery from the start and so working harder than it normally does
 
If the belts are worn its well worth replacing them.
I found with the 200 def engine if you could turn the pulley by hand inside the belt it needed tightening, all v-belts are rubbish and require constant attention.
 
lynall said:
If the belts are worn its well worth replacing them.
I found with the 200 def engine if you could turn the pulley by hand inside the belt it needed tightening, all v-belts are rubbish and require constant attention.
Click to expand...
going on from this...has anyone modified the pulleys and belts on a 200 for something a bit more substantial? I too find the narrow v-belts a bit rubbish too. Do such modifications exist? I haven't really thought it through before, this post just reminded me to do so! Ta
Muchly
 
If it's charging OK you can get a bit of oil on the sides of the belt to shut it up, but if you're sure the belt's alright (not tight, loose, worn, or cracked) then it's probably a misaligned or deformed pulley or mount (likely alternator body, PS pump housing, or tension bracket). Look across the flat surface of the pulleys to check. If they're not quite in line, you might be able to tighten up bolts to get things lined back up, or spend a bunch on replacing stuff, or just rub a bit of grease on every few thousand miles and keep a close eye on belt condition. Oil will deteriorate belts if you use too much.
Reason it stops is because the belt warms up with the friction and softens a bit allowing it to rub without squealing.
If you're not sure a belt is OK, try a new one. One of the cheapest parts and easiest to replace.
 
'Course, the new one will need breaking in, which can involve a fair deal of screeching ;)
Haynes manual should see you right. Hot water and decent tension.
 
Sadly on the defender 200 engine the alt belt is behind the pas belt which is a bit of a cock to get tensioned right.
 
I find the opposite, but my PS housing and alt body are both knackered at the alt mount bolt, which makes it a lot harder to get things aligned.
You're not supposed to lever against casings or pulleys, but there are plenty of bolts and things you can get a lever on to make it easier. Just don't go mad. Use something like a long screwdriver or a small wrench, not a crowbar.
 
flat said:
As in the pas belt? I found the pas belt harder to tension properly than the alt on my 200
Click to expand...

Yes I always find it annoying, and you darent do it to tight s it does destroy the pas pump front support bearing as its not lubed by oil only the grease it comes with and of course the def 200 tdi pas pump is the most expensive pas pump there is!
Alt easy I just use a screwdriver as a pry bar you can be very accurate that way.
 
You must log in or register to reply here.

Similar threads

L
Strange Start Up Noise - TD5
2
Replies
30
Views
2K
LG199714
L
R
High pitch noise from 1994 - 300tdi - 90 Hardtop
Replies
2
Views
943
Anaconda
A
S
Freelander 2 (LR2) Noise when turning steering – Freelander 2 TD4
Replies
9
Views
948
Nodge68
Nodge68
C
Puma 2.2 air noise on acceleration and decreased power output
Replies
5
Views
926
CharliePapa
C
E
Td5: Shaking engine at short notice at a standstill directly after releasing the clutch
Replies
1
Views
397
miktdish
miktdish
Back
Top