Injector pump removal and timing question

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npaisnel
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Injector pump removal and timing question

Post by npaisnel »

Hi all, has been a while since I visited you all. must be a year or more now.

It is so long since I last removed an injector pump , I cant remember what is involved.

To remove it, can I do it just from the pump side? or does the front cover have to come off? Is there an inspection plate over the relevant area or is it a complete rad and front cover off job?

I remember there being slots in the drive gear to adjust the timing, (or is that a MF135?) but does all this get disturbed when I remove the pump?

Basically can I remove the three? bolts from the pump side, and slide the pump out, and then slide it back in again and the timing will be the same? or do I have to do the spill timing again when I put the pump back?

I need to get the pump off to replace the stop cable lever...lever has broken off half way down...have a spare but the pump needs to come off to replace the arm

Cheers

Neil
Last edited by npaisnel on Tue May 21, 2013 1:11 pm, edited 1 time in total.

Bensdexta
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Fuel Pump Removal

Post by Bensdexta »

Removal of the injection pump is pretty straightforward.

Basically undo the 5 retaining nuts that hold it onto the back of the timing case and withdraw it backwards. Getting access to some of the nuts can be a bit fiddly.

However before removing the pump, and to avoid losing the timing, I would remove the inspection cover on the front of the timing cover and turn the engine over with a bar untill you see the timing mark on the pump gearwheel align with the mark on the idler gear. I guess you could cheat by marking the pump and idle gear teeth with tippex, thus avoiding the need to turn the engine with a bar.

Then you can remove the pump. When you refit it, make sure the marks are aligned so you keep the timing.

See also the workshop manual downloadable from Stefan's fordson-dexta.de site. It's all explained in the Fuel Section :wink:

All the best,
Last edited by Bensdexta on Tue Jun 08, 2010 2:53 pm, edited 1 time in total.
Bensdexta - 1961 working for a living!

john.n
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Post by john.n »

you might want to remove the fuel filter to give you a bit more room to draw the pum back. only takes a min and makes the whole job easyer.

npaisnel
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Post by npaisnel »

OK, so timing gear comes out with pump. Could not remember if gear came out or if it stayed in the casing and pump came off.

I did a search on my machine for the pdf files but could not find them, hence the post.

Fuel filters can do with coming off anyway.

Cheers for info.

Oh one other thing, that I could find out when stripping it, but will ask now before it is too late. Does the pump body have any rotation on the timing case, or is it in a fixed position, and all timing adjujstment done on the timing gear/pump shaft joint

Bensdexta
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Post by Bensdexta »

npaisnel wrote:OK, so timing gear comes out with pump. Could not remember if gear came out or if it stayed in the casing and pump came off.

...
Does the pump body have any rotation on the timing case, or is it in a fixed position, and all timing adjujstment done on the timing gear/pump shaft joint
Timing gear comes out with pump.

Pump body has no rotation on the timing case, it's fixed by the mounting studs. Fine timing adjustment is via the bolts which hold the gear to the pump - as described in the manual. But if your timing is OK you shouldn't need to adjust it - just ensure that the gear teeth are aligned same as when it came off.
Bensdexta - 1961 working for a living!

npaisnel
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Post by npaisnel »

Yes, it must be the MF 135 that I was thinking of....3 mounting bolt and you rotate the body to adjust. Probably 10 years ....no more...15 or 18 since I last did any engine re builds on one.

Did have the pdf's somewhere, will dig em out when I get home

Thanks for the help

Neil.

Bensdexta
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Post by Bensdexta »

npaisnel wrote:Did have the pdf's somewhere, will dig em out when I get home.
Neil,
Just download them from fordson-dexta.de in download section - easy :wink:
Bensdexta - 1961 working for a living!

npaisnel
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Post by npaisnel »

Thats being defeatist...I know they are on the Mac or the PC somewhere...or the NAS box backup in the attic....download them again ! never...far too easy ;)

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