vw t25 how to do timing

[colincolin64]

Hi ther can any one help need to check timing on van never done it before can any one tell me the best way please cheers colin 1.9 water cooled dg engine automatic petrol

[sarran1955]

Hello,

While you are waiting for an answer....

You will need a Strobe Lamp.. from £20..

A tippex white pen (or similar)

and a spare charged up 12 volt battery..

Photo of your existing set up may be a good idea..

Cordialement,

[itchyfeet]

turn the engine so you can see the timing marks on the pulley where the aux belt is, there should be a U shape for TDC on one edge of pulley and a V shape about 7mm to the right on the other edge of the pulley, this is the 5 degrees before top dead centre mark (BTDC) mark both with tippex

Then connect your strobe light to plug lead no1 or clamp it on if it's the clamp on type, No1 cylinder is front of van right as you look from the rear.

connect the 12v power to strobe and ground to body, easiest place for 12V is the alternator bolt if it is a late van, if early van may need to get a connection to the stud in the black box.

get the leads away from the belt and pulley

start the engine

allow the choke to come off

remove the vac pipe from dizzy, (revs will drop a little) and point the timing gun at the pulley, you should see the marks, the V should align with centre of engine, that's the edge of the casting above.

if you have a rev counter you should set the idle stop to 900rpm after removing the vac pipe but if not don't worry

if it's out then you need to turn off engine, loosen pinch bolt on dizzy, restart engine and repeat, rotate dizzy until the V mark aligns with centre of engine, use rubber gloves, turn off engine and tighten without moving dizzy.

restart and check

refit vac pipe

Some strobe guns have an adjustable advance, if it has one then make sure it's set to zero or read up how to use it.

[colincolin64]

Hi thankyou so much you been brill cheers colin

[CovKid]

Itchyfeet, I'll add that to the WIKI. Simply explained and it should be there in my view.

Done: https://club8090.co.uk/wiki/Pe ... 1.9_Timing" onclick="window.open(this.href);return false;

[itchyfeet]

glad you liked it