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Relacing zd injector pump looking for a second opinion
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Old 11-07-2018, 12:24 PM
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Default Relacing zd injector pump looking for a second opinion

Howdy forum, after my ute decided to stop ànd after a mountain of reading cleaning checking codes replacing parts I'm diving in!

Yup I've gone the pump removal replace path.... And what I'd like is a second set of eye's from anyone thats gone basketball's deep and done a pump replacement themselves ..

I have done the "page by page " search here but i couldn't find anything on the pump removal "what to do and not" ? So i thought I'd add some picks and ask some questions.
I have read all the manuals i can find, paper and electronic but would still like someone to walk me through it photo by photo if they could?

My first query is, you would lossen all bolts needed to be taken out before you lock the idler gear with a bolt?
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Old 11-07-2018, 10:47 PM
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follow the manual.
basically strip it down, take off the timing chain cover.
get ALL of the timing marks to line up including the cam marks. that can be a right pain to turn over the engine. i think its something like 26 complete turns to do the timing marks 1 complete rotation.
i used a big socket on the crank.

then lock the idle gear.
then you can take the timing chain off and remove the pump.
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Old 12-07-2018, 01:18 AM
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Second querry, am i right in thinking the position of the cam doesn't matter at this point? As long as the chain and sprockets are marked along with the pump drive and idler gear ?
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Old 12-07-2018, 01:42 AM
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afaik its fine to do it that way. mark the chain and both sprockets. make sure you use different markings.

i just found it easier to deal with (as i was taking head off) using the factory marks. that way you know the cams are all lined up correctly as well. it was just a bit of insurance.
in particular i found that the injection guy had put the chain on 180 degrees out. it didn't change the timing, just made things difficult because the factory marks didn't line up.

edit i would make sure the injection pump marks line up. that way if you mark on the injection pulley is cleaned off you can still get it back on correctly.
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Old 12-07-2018, 06:45 AM
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Originally Posted by tweak'e View Post
afaik its fine to do it that way. mark the chain and both sprockets. make sure you use different markings.

i just found it easier to deal with (as i was taking head off) using the factory marks. that way you know the cams are all lined up correctly as well. it was just a bit of insurance.
in particular i found that the injection guy had put the chain on 180 degrees out. it didn't change the timing, just made things difficult because the factory marks didn't line up.

edit i would make sure the injection pump marks line up. that way if you mark on the injection pulley is cleaned off you can still get it back on correctly.
Yes good point, i have new chain and sprockets to go on. So howwww many revolutions you say lol ill pull the glows eh lol but it's worth getting all aligned.. so when i do get all marks lined up the locking bolt for the idler gear should be at it's port so to speak?
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Old 12-07-2018, 07:13 AM
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the injection pump timing gear will line up and the bolt fit.
its just a matter of getting the cam timings to line up as well. its probably not necessary but its easier when you go to put it back together. you know all the cams are in the right place etc.
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Old 12-07-2018, 07:13 AM
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The cc on the idler gear suggest that eh locking bokt in place and c c is visible..
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Old 12-07-2018, 07:47 AM
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Thats how i will keep the bottom sproket and chain lined up lol the sprocket has an alignment pin on the pump gear..
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Old 15-07-2018, 11:30 AM
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Got to the stages of glow plugs out and turning her over and got called away.. i did manage to get it turned over a few times and got the c and c-c to line up but the chain and sprocket markings are out?? Tuesday before i can get to her again.. grrr
Plenty of time for another manual read ;)
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Old 17-07-2018, 01:57 PM
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Following with interest. Im no help to you unfortunately but appreciate all your pics and steps. Cheers fella
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