LUCAS / BOSCH INJECTION PUMP PULLEYS INTERCHANGEABLE ?

[Gohn 68]

In the process of swapping over from my little LUCAS Diesel Injection Pump to a BOSCH

 

Got my Bosch pump but it came without the pulley, errr

 

Obviously I already have a pump pulley on the Lucas, but are they interchangeable ?? I've heard both yes and no..

 

Both Lucas/Bosch pulleys have 42 teeth

 

The peug part catalog lists different pulley part numbers:

Bosch: XUD7 , XUD7TD, XUD9 Bosch - #193028

XUD9TD Bosch - #193029

Lucas: all XUD/TD same #193020

 

If anyone's done it back when you had a diesel and can confirm either way, that would be much appreciated

[xstian 12]

I'm not sure if they are interchangeable, but I may have a spare bosch pulley if you need one. 

[Gohn 68]

did a bit more looking

the different part numbers suggests they aren't interchangeable but its not conclusive

anyway, found a vid online by a guy that did a Lucas to Bosch changeover

and he actually compares the two pulleys but fails to mention which is which

I took a screenshot, the Bosch is on the right , its not larger just closer to the camera

thanks christian I'll send you a message

[Gohn 68]

oh yeah, forgot - they are NOT interchangeable

the timing is slightly off one to the other

 

[xstian 12]

Hi Andrew,

 

The one I have is on the left and it defiantly came off a Bosch pump. I think you have them the wrong way round in the above photo. This is a link to a Bosch pump fitted with the same pulley as I have.

 

https://www.proxyparts.com/car-parts-stock/information/make/peugeot/model/306/part/mechanical-fuel-pump/partid/88930/

 

I hadn't noticed you where in Australia, but you are welcome to it. Do you know what code your pump is, some have smaller internals?

Edited March 28, 2023 by xstian

[Gohn 68]

yeah saw that pump in the link

I've two Lucas pulleys and both look like the one on the left, and same as in your link

so maybe you just can't tell from looking at them ?

u could post it to a UK address , is it from a XUD9TD or non turbo ?

[xstian 12]

It's from a turbo, I'll check this morning that it fits a bosch pump. 

[Gohn 68]

cheers xstian

but both pulleys will fit on either pump

both pulley keyways, centre taper and timing holes are the same

 

the lucas pulley is the one with the 6 round cutouts

also, the bosch pulley the outer face is recessed and the inner (closest to pump) is almost flush

 

[xstian 12]

Hi Andy,

 

I had a look this morning. I have both versions of the pulley and indeed you are right, although they look different they both have the same timing marks and key way location. Which one do you want? The Bosch pulley (on the right in your photo) is much lighter. 

 

Not that it makes any difference, but the 3 Bosch pumps I have here all the the pulley with the 6 round holes fitted and the only Lucas pump I have has the star type pulley fitted. 

[Gohn 68]

really !! its getting worse, I knew it'd be like this if the pump came without a pulley

 

the pulleys pictured above were both non-turbo. Lucas left, Bosch right

 

if you have pics of yours with exactly what pump Bosch/Lucas D/TD that may help

 

 

 

 

 

[Gohn 68]

9 hours ago, xstian said:

Which one do you want?

The one that's on the Bosch TurboD pump

thanks christian, I'll message the address

[Jimarilo 0]

On 3/28/2023 at 4:10 PM, xstian said:

Hi Andrew,

 

The one I have is on the left and it defiantly came off a Bosch pump. I think you have them the wrong way round in the above photo. This is a link to a Bosch pump fitted with the same pulley as I have.

 

https://www.proxyparts.com/car-parts-stock/information/make/peugeot/model/306/part/mechanical-fuel-pump/partid/88930/

 

I hadn't noticed you where in Australia, but you are welcome to it. Do you know what code your pump is, some have smaller internals?

Hi do you still have a spare pulley for a bosch diesel injector pump ??? I am looking for one to buy ........cheers

[xstian 12]

On 2/1/2024 at 10:38 AM, Jimarilo said:

Hi do you still have a spare pulley for a bosch diesel injector pump ??? I am looking for one to buy ........cheers

Hi, sorry for the late reply. I should still have it if you are interested.

 

Christian.

[Jimarilo 0]

Hi, thanks for your reply

 

Yes I am very interested ......

 

Just let me know what to do .......can private messaging be done on this site ?

 

Cheers

 

 

Paul

[Jimarilo 0]

Hi Christian, yes I am still interested

 

Still new here so can't message you directly

[Richie-Van-GTi 71 2 Cars]

Been a while since i messed with an XUD but from memory doesnt the bosch pump normally have a tag with a measured height of the internals which is used to time the pump at TDC? If it does then surely any pulley of correct size and tooth count could be used if it physically fits and be timed that way rather than pegged on place?

[Jimarilo 0]

Don't know,  the dial gauge I use for timing my 940 can't get into the hole for the dial gauge, as there is no room and I don't have the adapter 

 

The teeth on the bosch pulley are slightly out compared with the lucas pulley, which still runs ok, but the cold start take a few turns before it goes. The glow pugs are all good

 

Chris seems to have disappeared

[xstian 12]

3 hours ago, Jimarilo said:

Don't know,  the dial gauge I use for timing my 940 can't get into the hole for the dial gauge, as there is no room and I don't have the adapter 

 

The teeth on the bosch pulley are slightly out compared with the lucas pulley, which still runs ok, but the cold start take a few turns before it goes. The glow pugs are all good

 

Chris seems to have disappeared

Hi Paul,

 

Sorry totally forgot. It was kicking about the house for ages, but now I can't find it. I may have taken it back to work, I'll have a look this week. Sorry for the delay.

 

Christian.

[Jimarilo 0]

No worries Christian, am sure you have plenty of other more important things to think about ;-)

[Jimarilo 0]

I fitted the lucas pulley on the bosch pump and it works, but not perfectly, even after timing it properly

 

if anyone has a bosch pulley I would definitely be interested