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Author Topic: 4 pot cam belt change - tools required?  (Read 5552 times)

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alexandjen

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Re: 4 pot cam belt change - tools required?
« Reply #30 on: 22 November 2008, 13:22:56 »

Quote
Once the crankshaft nut is removed the sprocket should just slide off. You will also need to recover the spacer ring behind the sprocket and knock out the woodruff key before tackling the seal.  I punched two holes in the outer surface of the oil seal and screwed self-tappers into this.  It then levered out using a pair of long-nosed pliers.

Take care with the new oil seal. I had a bugger ir a job trying to get this back on and ruined the first seal.  These are £17 quid from Vauxhall, but I got another one from my local autofactors for a fiver.

I used wet and dry to round over the lip of the journal the seal presses over.  You need to clean this again thoroughly and liberally coat the journal and the seal lip with clean oil.  The second one went in just fine.

Ahh many thanks, I've got the sprocket off now after soaking it in WD40 and a couple of light taps she fell off :y

I was about to ask about the washer as the seal will not go passed it ::)

How do you knock out the woodruff key?
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Andy B

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Re: 4 pot cam belt change - tools required?
« Reply #31 on: 22 November 2008, 13:37:58 »

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.....
How do you knock out the woodruff key?

Hammer & screwdriver .....  :y
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alexandjen

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Re: 4 pot cam belt change - tools required?
« Reply #32 on: 22 November 2008, 13:56:03 »

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Quote
.....
How do you knock out the woodruff key?

Hammer & screwdriver .....  :y

Cheers Andy, I've been struggling with various size screw drivers, still no luck.
I'm scared of buggering the thread :-/
« Last Edit: 22 November 2008, 13:56:35 by alexandjen »
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alexandjen

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Re: 4 pot cam belt change - tools required?
« Reply #33 on: 22 November 2008, 14:09:06 »

I take it that it does knock out from the inside of the bolt aperture, so trying to get screwdriver inside where thread is for bolt and tapping upwards?
All I can feel is thread :-/
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Andy B

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Re: 4 pot cam belt change - tools required?
« Reply #34 on: 22 November 2008, 15:05:09 »

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I take it that it does knock out from the inside of the bolt aperture, so trying to get screwdriver inside where thread is for bolt and tapping upwards?
All I can feel is thread :-/

NO!!!! It's machined in from the outside. A woodruff key is like a half disc .........
clicky
You need to prise it up at one end.
« Last Edit: 22 November 2008, 15:12:51 by Andy_B »
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alexandjen

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Re: 4 pot cam belt change - tools required?
« Reply #35 on: 22 November 2008, 17:28:52 »

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Quote
I take it that it does knock out from the inside of the bolt aperture, so trying to get screwdriver inside where thread is for bolt and tapping upwards?
All I can feel is thread :-/

NO!!!! It's machined in from the outside. A woodruff key is like a half disc .........
clicky
You need to prise it up at one end.

Thanks Andy, yes sussed the Woodruff key eventually, came out easy when you no how.

I've changed the oil seal, put it back together and torqued the bolt.

I've replaced the water pump, positioning the new one in exactly the same place as the old one, I can't see any cut out on the rear timing cover to line the lug up with :-/

I think the old pump may be the original :o
It's covered in a layer of crud, looks like a build up of limescale and there is no groove with o ring seal, looks like someone used some sort of black sealant. Also the paddles are not made of plastic, they are metal ,brass colour.

Next problem is that I can't get the new cambelt on all the sprockets :-[ it's as though it is to short, which it isn't as I've measured it against the old one.

Does the water pump position make a difference to the belt length?
« Last Edit: 22 November 2008, 17:29:37 by alexandjen »
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markey mark

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Re: 4 pot cam belt change - tools required?
« Reply #36 on: 22 November 2008, 17:31:29 »

yep turn pump to suit it needs to be in nearly the same place as your old one  :y
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alexandjen

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Re: 4 pot cam belt change - tools required?
« Reply #37 on: 22 November 2008, 17:33:58 »

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yep turn pump to suit it needs to be in nearly the same place as your old one  :y

That's just it Mark, I have positioned it as the old one, with the lug at 12 o'clock. As said before, I can't see anything to line up the water pump lug with :-?
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markey mark

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Re: 4 pot cam belt change - tools required?
« Reply #38 on: 22 November 2008, 17:39:55 »

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yep turn pump to suit it needs to be in nearly the same place as your old one  :y

That's just it Mark, I have positioned it as the old one, with the lug at 12 o'clock. As said before, I can't see anything to line up the water pump lug with :-?

sure theres a mark somewere bud just carnt remember were  :-[
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RobG

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Re: 4 pot cam belt change - tools required?
« Reply #39 on: 22 November 2008, 17:47:26 »

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Quote
Quote
yep turn pump to suit it needs to be in nearly the same place as your old one  :y

That's just it Mark, I have positioned it as the old one, with the lug at 12 o'clock. As said before, I can't see anything to line up the water pump lug with :-?

sure theres a mark somewere bud just carnt remember were  :-[[/quote]
The lug on the side of the pump is aligned with a recess in the cylinder block. :y
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JamesV6CDX

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Re: 4 pot cam belt change - tools required?
« Reply #40 on: 22 November 2008, 17:47:27 »

I usually take off an idler, route the belt, and then fit the idler last. :y
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RobG

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Re: 4 pot cam belt change - tools required?
« Reply #41 on: 22 November 2008, 17:49:39 »

When you are trying to fit belt are you keeping all the slack on the tensioner side :question
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alexandjen

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Re: 4 pot cam belt change - tools required?
« Reply #42 on: 22 November 2008, 17:50:13 »

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Quote
Quote
Quote
yep turn pump to suit it needs to be in nearly the same place as your old one  :y

That's just it Mark, I have positioned it as the old one, with the lug at 12 o'clock. As said before, I can't see anything to line up the water pump lug with :-?

sure theres a mark somewere bud just carnt remember were  :-[[/quote]
The lug on the side of the pump is aligned with a recess in the cylinder block. :y

Don't suppose the recess is at 12 oclock ::)
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alexandjen

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Re: 4 pot cam belt change - tools required?
« Reply #43 on: 22 November 2008, 17:50:57 »

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I usually take off an idler, route the belt, and then fit the idler last. :y

Tried that James, after seeing you do it on the DVD, no chance :-[
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JamesV6CDX

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Re: 4 pot cam belt change - tools required?
« Reply #44 on: 22 November 2008, 17:51:55 »

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Quote
I usually take off an idler, route the belt, and then fit the idler last. :y

Tried that James, after seeing you do it on the DVD, no chance :-[

Odd - are you doing it differently to how I was?
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