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Car Forum / UK Car Forums / Car Maintenance (UK group) / May 2008

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timing belt replacement

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Mike - 28 May 2008 08:59 GMT
Hi All
Just wondering how much 'leeway' there is in timing belt replacement
recommendations?

I have an '95 LT35 D which is coming up to 75k- i was told that 80k
was when it needed to be done- was going to get it sorted- this week
until i found out how much it was going to cost- cheapest quote £400

So the question is really- is it safe to go up to the wire ie 80k- or
beyond?

Does the fact that it is 12years old have any bearing on the decision-
i guess the average commercial vehicle would do 80k in a couple of
years or less( mine hasn't had a hard life!)

Just wondering if i can buy myself a little time to save up the money!

regards
Mike
Chris Whelan - 28 May 2008 09:20 GMT
>  Hi All
> Just wondering how much 'leeway' there is in timing belt replacement
[quoted text clipped - 15 lines]
> regards
> Mike

Usually, replacement intervals are xxx miles, or xxx years, whichever comes
first.

I'm willing to bet the xxx years is going to be a good bit less than 12!

If it's an engine where valve/piston contact occurs when the belt fails, you
would probably have to write the vehicle off at the age it is.

My advice would be to change it ASAP.

Chris

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Remove prejudice to reply.

Gazz - 28 May 2008 16:11 GMT
>>  Hi All
>> Just wondering how much 'leeway' there is in timing belt replacement
[quoted text clipped - 12 lines]
>>
>> Just wondering if i can buy myself a little time to save up the money!

Well, if you consider a re-con engine for that van is just over £1500, and
if you can't fit it your self it's gonna cost a lot as the bugger has to
come out through the passengers door, lots of stuff to take out the way to
get it out,

and if you just get the head replaced (as you will need to do as when you
take the head off these engines you'll discover cracks along the centre as
it's a known weak point due to the length of the head) and a new head is
from £500 to £800, depending on how many bits you can salvage from yours
when it gets trashed due to a belt breakage.

When i had one of these vans, i changed the timing belt every 3 years
without fail, it's not that hard a job really, just a little time consuming
as the radiator needs to come out, and the crankshaft pulley is bloody
bloody tight, and if it's not put back on done upto the 500+ newton meters
of torque, the cam drive pulley will wobble about, and eventually wear the
locating peg away.

But to replace the belt, you just need a set of VW locating pins, remove rad
and drain cooling system, undoo the crank pulley nut, take alternator drive
belt off,
lock the injection pump pulley, take injection pump drive pulley off the cam
shaft, take rocker cover off, insert the flat bar in the slot in the cam
shaft end,

take cam belt cover off.. loosen water pump and rotate to loosen belt, take
crank pulley off, pull belt off,

re-fit is a reversal of taking it off, but inspect the locator pin inside
the crank belt drive pulley, if it's worn get a new un, about 20 quid from
german, sweedish and french, you might want to replace the water pump whilst
your in there, again about 20-30 quid,

Make sure you tighten the crank pulley right up, whilst your at it if you
have a dial guage with the adaptor, re-set the injection pump timing,

Re-fill with a good quality anti-freeze with corosion inhibitors, i gather
you've been doing that every 2-3 years anyway.
Mike - 28 May 2008 17:51 GMT
> >>  Hi All
> >> Just wondering how much 'leeway' there is in timing belt replacement
[quoted text clipped - 53 lines]
>
> - Show quoted text -

Hi- thnx for that- i reckon i need to get it done then!
unfortunately I am not mechanically gifted- some days i struggle to
get the van door open(lol)- so it will have to be the garage @£400- i
have checked with them an the price also includes changing the pump
belt(whatever that is)- and some guides/rollers- and the guy did seem
to know what he was talking about- so maybe its not that bad!
regards
Mike
Gazz - 31 May 2008 14:13 GMT
Hi- thnx for that- i reckon i need to get it done then!
unfortunately I am not mechanically gifted- some days i struggle to
get the van door open(lol)- so it will have to be the garage @£400- i
have checked with them an the price also includes changing the pump
belt(whatever that is)- and some guides/rollers- and the guy did seem
to know what he was talking about- so maybe its not that bad!

-------------------

I guess with todays labour rates, that's not a bad price, the book does list
about 5-6 hours for the job, i forgot on my lt i had removed the engine
driven fan and fitted an electric fan, so i didnt have an hours worth of
arsing about getting the damn bolts out of the fan ducting and having to
remove the viscouse coupeling for the fan etc.

the lt's engine runs the injection pump off the back of the cam, it's a
short cam type belt, makes sense to replace it when it's off to lock the cam
in place for the timing belt,

Are you down south by any change? cos theres a great bloke in the VW LT
Motorhome club who owns a garage in eastbourne, he knows the LT inside out,
and is pretty reasonable i've been told, he certianly knows what he's doing
when he went on club rallies and had to repair the vans as they broke down
:) Dave Wallace is his name, he can be contacted through the LT Motorhome
club, but of course if your nowhere near eastbourne then it dunt matter.
Mrcheerful - 28 May 2008 09:27 GMT
> Hi All
> Just wondering how much 'leeway' there is in timing belt replacement
[quoted text clipped - 15 lines]
> regards
> Mike

the guide is that it should be inspected every 20k and replaced if needed.
there is no upper limit according to autodata.

I have changed the belts on one of these in a volvo 940, it didn't seem too
bad a job, but it was a long slog.

the book says over 5 hours.  have a look round for a mobile cambelt man, I
would guess they would do the whole job for about 200 - 250

if it is the original belt then don't leave it too long as a breakage means
massive damage
Mike - 28 May 2008 16:00 GMT
Hi- thanks for that

I think the reason it is so expensive is that the engine has to be
'dropped' to gain access?- i'm not sure whether a mobile guy would be
set up for that?

I was just looking to buy a bit of time as it also needs a new clutch
and brake pads before we head for newquay- which i think altogether
came to £750- so i'd be lucky if i have enough money left to buy
enough diesel to get there!

thanks again for the advice

Mike
Conor - 28 May 2008 15:47 GMT
In article <d2f7edaa-5f91-4a8d-83f1-1705d118b9b3@
34g2000hsf.googlegroups.com>, Mike says...
>  Hi All
> Just wondering how much 'leeway' there is in timing belt replacement
[quoted text clipped - 8 lines]
>
> Does the fact that it is 12years old have any bearing on the decision-

Yes..it needs to be done sooner than later because the rubber is
already degraded.

Signature

Conor

I only please one person per day. Today is not your day. Tomorrow isn't
looking good either. - Scott Adams

Gareth Magennis - 28 May 2008 16:01 GMT
In article <d2f7edaa-5f91-4a8d-83f1-1705d118b9b3@
34g2000hsf.googlegroups.com>, Mike says...
>  Hi All
> Just wondering how much 'leeway' there is in timing belt replacement
[quoted text clipped - 8 lines]
>
> Does the fact that it is 12years old have any bearing on the decision-

Yes..it needs to be done sooner than later because the rubber is
already degraded.

Signature

Conor

I am probably one of many who took the gamble and tried to eke out the
timing belt.  I destroyed my Escorts engine on the M62 one very wet, dismal,
expensive car-written-off morning, on the way to a job.  I am probably one
of many who will never take that risk again!

Gareth.

 
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