Diesel Pump

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Eddie Nuff
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Diesel Pump

Post by Eddie Nuff »

In the new year, when everything has quietened down and I have two minutes to think, I intend to set about the sinker, as in my sig. The underneath, bodywork and interior are done but the car is let down by a scruffy engine bay, so the intention is to remedy that and see how close to showroom condition I can get her. Hence the diesel pump, and other parts, are going to be vapour blasted.

So my questions are aimed at making this as smooth as possible;

When removing the diesel pump are there any procedures to follow?

Does the pump have to be drained down of diesel before removal?

Does the cambelt sprocket need locking out first?

Is there any special tool needed?

Are there any valves/seals/grommets that need to be removed before blasting?
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CitroJim
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Re: Diesel Pump

Post by CitroJim »

Eddie Nuff wrote: 03 Dec 2017, 16:31 So my questions are aimed at making this as smooth as possible;

When removing the diesel pump are there any procedures to follow?

Yes, remove the timing belt cover over the pump sprocket and bring the engine to time. Remove the fuel delivery pipes to the injectors as one of the first jobs you do to avoid stressing them.

No need to remove the cambelt as the sprocket will remain in place supported by the M8 bolts in the index holes...

When removing the pump, be very careful the woodruff key does not make a bid for freedom. Stuff the area with rags as if the key disappears down in the timing belt area you are in a world of pain... I have been there :evil: The stuffed rags will catch the key if it flies... When replacing he pump, use lots of grease to hold the key in place...

Does the pump have to be drained down of diesel before removal?

No.

Does the cambelt sprocket need locking out first?

Yes. Once in time, lock the sprocket using M8 bolts in BOTH index holes...

Is there any special tool needed?

Yes, a special puller to pull the sprocket off the pump driveshaft. Easily made... I can supply details if you want...

Are there any valves/seals/grommets that need to be removed before blasting?

All orifices need to be VERY THOROUGHLY sealed before doing any sort of cleaning...



Just shout if you need further information Neil ;)
Jim

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Re: Diesel Pump

Post by Hell Razor5543 »

CitroJim wrote: 04 Dec 2017, 07:37
Eddie Nuff wrote: 03 Dec 2017, 16:31 So my questions are aimed at making this as smooth as possible;

When removing the diesel pump are there any procedures to follow?

Yes, remove the timing belt cover over the pump sprocket and bring the engine to time. Remove the fuel delivery pipes to the injectors as one of the first jobs you do to avoid stressing them.

No need to remove the cambelt as the sprocket will remain in place supported by the M8 bolts in the index holes...

When removing the pump, be very careful the woodruff key does not make a bid for freedom. Stuff the area with rags as if the key disappears down in the timing belt area you are in a world of pain... I have been there :evil: The stuffed rags will catch the key if it flies... When replacing he pump, use lots of grease to hold the key in place...

Does the pump have to be drained down of diesel before removal?

No.

Does the cambelt sprocket need locking out first?

Yes. Once in time, lock the sprocket using M8 bolts in BOTH index holes...

Is there any special tool needed?

Yes, a special puller to pull the sprocket off the pump driveshaft. Easily made... I can supply details if you want...

Are there any valves/seals/grommets that need to be removed before blasting?

All orifices need to be VERY THOROUGHLY sealed before doing any sort of cleaning...

Don't forget to wash your mouth with coaltar soap, as you WILL be turning the air blue!


Just shout if you need further information Neil ;)
James
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Re: Diesel Pump

Post by CitroJim »

James, you do make me giggle :D I love your comment in blue above!
Jim

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Re: Diesel Pump

Post by Hell Razor5543 »

If I can make one person a day smile I think I have made the day worthwhile. If I can make them laugh so much the better.

How are you getting on with that DIY book?
James
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ex Xantia 2.0HDi LX
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Ex C5 2.0HDi VTR

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CitroJim
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Re: Diesel Pump

Post by CitroJim »

Hell Razor5543 wrote: 04 Dec 2017, 08:02 If I can make one person a day smile I think I have made the day worthwhile. If I can make them laugh so much the better.
Absolutely agree with that totally James :) I try to do the same ;) Makes me feel bloody good...
Hell Razor5543 wrote: 04 Dec 2017, 08:02How are you getting on with that DIY book?


Loving it :D

The other book is next to be read...

Did you get 'The Shepherd' back OK?
Jim

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Re: Diesel Pump

Post by Hell Razor5543 »

I let Mike know that if he wanted to borrow it go ahead.
James
ex BX 1.9
ex Xantia 2.0HDi SX
ex Xantia 2.0HDi LX
Ex C5 2.0HDi VTR
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Eddie Nuff
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Post by Eddie Nuff »

Thanks Jim, just the kind of info I was after.

Yes I will have details of that puller please.
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Re:

Post by CitroJim »

Eddie Nuff wrote: 04 Dec 2017, 12:09 Yes I will have details of that puller please.


Those details will be with you as soon as I'm within range of my home... Can't get to my files where I am presently ;)

Also, don't hesitate to ask for any further advice you may need...
Jim

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Eddie Nuff
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Post by Eddie Nuff »

No need to rush, I aren't going to start on this until the new year.
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CitroJim
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Re: Diesel Pump

Post by CitroJim »

Eddie Nuff wrote: 04 Dec 2017, 12:17 No need to rush, I aren't going to start on this until the new year.
yes, but I'll forget unless I do it ASAP ;)

Here they are...

The design:
Owen Work
Owen Work
What it looks like:
Own Work
Own Work
How to use it. (Engine removed for clarity) Works on both Lucas and Bosch pumps...
Own Work
Own Work
The bolts are M7... An odd size but you can 'borrow' a couple from the gearbox housing ;)
Jim

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Re: Diesel Pump

Post by moizeau »

And leave the nut on the pump (unscrewed a few turns) to look after the thread and it stops the whole lot leaping off uncontrollably. Then you can remove the pulley and woodruff key easily without visiting the land of pain
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Re: Diesel Pump

Post by CitroJim »

moizeau wrote: 04 Dec 2017, 19:18Then you can remove the pulley and woodruff key easily without visiting the land of pain


But no, you leave the pulley (sprocket) in place so that there is no need to disturb the cambelt ;) That's precisely why the pump drive sprocket has two indexing (locking) holes... It rigidly supports it with the pump removed...

The puller is gentle enough to not cause any damage to the driveshaft threads...

Neil, on thing I forgot... Before you start, mark the position of the pump on it's cradle with a line across the pump flange to ensure that on reassembly the pump static timing is maintained...
Jim

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Re: Diesel Pump

Post by moizeau »

Yes Jim, meant to say 'remove the pump and key from the pulley'. Leaving the nut on has always been a habit, you don't know how stuck they can be, started the habit after removing a rotor on a motorbike crank that damaged the first thread
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Re: Diesel Pump

Post by CitroJim »

moizeau wrote: 05 Dec 2017, 10:32 Leaving the nut on has always been a habit, you don't know how stuck they can be


And it's a good one too :) You only ruin a thread once and usually when you do you're in a whole world of pain...

I've had more pump sprockets off than I can count now and touch-wood they've always come off without any difficulty using my little puller...
Jim

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