Author Topic: What bolts do I loosen to adjust injection pump timing?  (Read 18523 times)

September 25, 2007, 10:03:34 pm

burn_your_money

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What bolts do I loosen to adjust injection pump timing?
« on: September 25, 2007, 10:03:34 pm »
Having problems figuring out how to move your pump to adjust your timing?

These are the 4 bolt locations that you need to loosen (DO NOT remove the bolts all the way)







Personally on my 1.6 NA and 1.6 TD engines I set the timing to 1.00mm but other people will tell you otherwise

please note, this does not apply to later AAZ engines with the split pulley unless you are removing the pump
« Last Edit: January 02, 2010, 01:13:43 pm by burn_your_money »


Tyler

Reply #1September 26, 2007, 09:03:53 am

Benjamin

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how to time
« Reply #1 on: September 26, 2007, 09:03:53 am »
i also prefer timing between 1,05 and 0,95mm.

to adjust the static timing:


Unbolt the bolt in the midlle of the 4exits to the injectors. (sometimes there flaots diesel out when the bolt comes out)
the tool must be installed instaed of the bolt in the head from the IP.

dont start the engine on when this tool is installed

Do install the tool in the IP,
bring the 1cilinder to the highest position, now turn the crank backwards and look to the gauge and when it instantly go to the other direction, stop turning. Set the gauge to zero. now turn the crank forwards till the 1st cilinder is in the highest position. now you can play with your IP to set the static timing to 1,00 (for example).


The higher the tool reads, the earlier the injection timing is, to early timing will make very very high pressure on the cilinder and you will become an engine failure, infact its possible to have a broken rod!

after you did timed the static timing to 1mm (+-0,05mm) you need to listen to the engine, its normal it have more dieselknock, but it may not sound to much like a metal piece in your cilinders, thats to much, this rule is also for guys who do play with dynamic timing, btw you also do that when you touch screws for the dieselquantity.

Greetz, Benjamin
SMOG alert, engine running again!
Must make +250hp

Reply #2April 18, 2010, 10:29:34 am

James8485

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Re: What bolts do I loosen to adjust injection pump timing?
« Reply #2 on: April 18, 2010, 10:29:34 am »
thanks it does
---------James--------

Reply #3April 20, 2010, 07:13:10 am

xxkoadyxx

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Re: What bolts do I loosen to adjust injection pump timing?
« Reply #3 on: April 20, 2010, 07:13:10 am »
What does timing the pump do? why do it?
93 vw Golf 1.9TD soon to be stage 3 malone TDi (project)
2003 VW 1.8T Passat (daily)

Reply #4April 20, 2010, 07:51:03 am

burn_your_money

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Re: What bolts do I loosen to adjust injection pump timing?
« Reply #4 on: April 20, 2010, 07:51:03 am »
If you are familiar with gas cars consider the pump to be the distributor and you are adjusting when the "spark" happens.
Tyler

Reply #5April 01, 2014, 11:59:24 am

vako

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Re: What bolts do I loosen to adjust injection pump timing?
« Reply #5 on: April 01, 2014, 11:59:24 am »
I have one question to aaz car owners who have cold start lever. Shoul the car start without misfingi in the morning when outside temperature is more that +5-10 celsius. My car used to misfire a lot without cold start lever out and then after advanceing the ip timing (almost 7-8 milimetres acoording to the mark i made next to at the mounting bolt) it runs almost without misfiring in the morning but with up  above the idle and untill 2500-2800 rpsm it has light "marble clatter" , above that revs it quietens down... I think thath static timing is still retarded and internal pressure is a bit high. I would apriciate yout opinion about this and also if you could tell me how your car behaves  ;D   after advancing the pump i have got more power and it consumes less fuel

Reply #6April 01, 2014, 01:23:51 pm

vako

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Reply #7April 01, 2014, 09:41:52 pm

ORCoaster

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Re: What bolts do I loosen to adjust injection pump timing?
« Reply #7 on: April 01, 2014, 09:41:52 pm »
Sounds way to advanced.  7-8 mm on mounting bracket marks?  So at low RPM it is clacking and at higher RPMs it is maxed out and about right or compensation happening.  Back the pump back 4 mm and see what happens.  Timing changes on these pumps happens with pencil line width change not MM. 

Reply #8April 01, 2014, 11:35:40 pm

745 turbogreasel

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Re: What bolts do I loosen to adjust injection pump timing?
« Reply #8 on: April 01, 2014, 11:35:40 pm »
This thread seems like it should have some mention of  loosening the injector pipes slightly  before adjusting pump angle,  You don't want to keep them in a twist, or sometimes they snap after awhile.

Reply #9April 02, 2014, 03:14:27 am

vako

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Re: What bolts do I loosen to adjust injection pump timing?
« Reply #9 on: April 02, 2014, 03:14:27 am »
Yeas i know that it should be advanced very presicely, but that was the point where car started to idle without misfiring on cold engine, without cold start lever out. Otherwoise it woudt misfire fot at least 1 minute after cold start.     Shoult it be like that? Engine is freshly rebuilt and compression is very good (starts without glow plugs on the first rev almost in every situation)
« Last Edit: April 02, 2014, 03:18:31 am by vako »

Reply #10April 02, 2014, 09:25:00 pm

ORCoaster

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Re: What bolts do I loosen to adjust injection pump timing?
« Reply #10 on: April 02, 2014, 09:25:00 pm »
Sounding more like a bad injector then if good starting but misfire on idle. 

Reply #11April 07, 2014, 01:24:25 pm

vako

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Re: What bolts do I loosen to adjust injection pump timing?
« Reply #11 on: April 07, 2014, 01:24:25 pm »
all injectors are checked, they open at right pressure and do not leak.

i have a question about bad valve lifters causing the engine tu buck without boost at mid revs, i will post it in idi section in my thread