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Model specific boards => Golf mk3 => Topic started by: DCmk3 on 23 October 2012, 13:30

Title: Timing query
Post by: DCmk3 on 23 October 2012, 13:30

I know I should test it with the timing light and all, as I am planning on changing the cambelt this weekend I will do it then, but what I am interested in is this, my car pulls nicely through the whole rev range, but when I look at the distributor it's in a completely different position to my friends Mk3 with the exact same year, engine and mileage.
With that being said, could my timing be out or how is there such a large difference between the positions of both?

Mine on the left, my friends on the right.
(http://i433.photobucket.com/albums/qq59/crayzie/timing.png)
Direct link for a larger image:
http://i433.photobucket.com/albums/qq59/crayzie/timing.png

Title: Re: Timing query
Post by: tweed on 23 October 2012, 16:47

No it's fine!

Title: Re: Timing query
Post by: DCmk3 on 23 October 2012, 16:57

Just a little confused, that's all, however it is a little weak under 2000 RPM..

Title: Re: Timing query
Post by: tweed on 23 October 2012, 17:20

Ok. Get number 1 piston to top dead center on ignition. (tdc)
Take cam cover off. Spark plugs out and turn the cam so the number 1 is at tdc. I use a long rod and put that in the cylinder through the spark plug hole.

When its at tdc take the cap off and see if the rotor arm is lined up with the timing mark on the body.

Title: Re: Timing query
Post by: DCmk3 on 23 October 2012, 20:18

So I was turning the engine over to align everything and it jumped a tooth.. looks like I will be spending the night changing the belt.
Seems the last cambelt tensioner the previous owner put on wasn't even tightened, I took it off with my fingers, that's how loose the tensioner was on there.

Title: Re: Timing query
Post by: tweed on 23 October 2012, 21:09

Good thing you checked!!! And it goes up!

Title: Re: Timing query
Post by: DCmk3 on 23 October 2012, 21:17

Yea I am damn grateful I checked that, I hadn't touched a single thing and this is how loose the belt was when I took the cambelt cover off..

(http://i433.photobucket.com/albums/qq59/crayzie/Photo0343.jpg)
Horrible picture quality but you get the idea.

Title: Re: Timing query
Post by: tweed on 23 October 2012, 21:47

That's bad! Sorry it pushes to the right, and then tighten.

Title: Re: Timing query
Post by: DCmk3 on 24 October 2012, 03:25

Unfortunately going to have to tow the car in to the shop tomorrow because I am out of my comfort zone with this now, as the pulleys are now out of alignment thanks to the tensioner letting the belt get so slack.

Title: Re: Timing query
Post by: DCmk3 on 24 October 2012, 16:29

Quick question, does the cambelt tensioner auto-tension or is there a manual way to do that?

Title: Re: Timing query
Post by: tweed on 24 October 2012, 22:42

Turn it with some circlip pliers and then tighten it up.

Title: Re: Timing query
Post by: spudboy6 on 26 October 2012, 00:35

There are two types , the manual one has two holes a special tool goes in to tension it then you lock it up when your happy with tension .

There straight forward to time up, has a mark on the cam Says OT I think , the crank either stick a screw driver down no1 or take the bung out the gearbox top as that's where the marks are .



This will help you

http://faculty.ccp.edu/faculty/dreed/Campingart/jettatech/t-belt/index.htm

May not be exactly same engine but there pretty much all the same

Title: Re: Timing query
Post by: DCmk3 on 26 October 2012, 01:17

Ah thanks man, was also needing the nm's for the bolts and that gives all the info I need.
Should be getting it back together tomorrow when I have an extra set of hands over here, praying for no complications.