1Y engine pump timing question

[camper]

The 1y engine in my van has a bosch injection pump.The rear of the pump between the fuel lines going to the injectors there is an electric oparated part screwed into where VW 2066 tool is used with a dial gauge for the pump timing to be adjusted as on JX engines.Can some one kindly advice the procedure for pump timing a 1y engine & what tools is needed? .Question is it a case of unscrewing this electrical componant and doing the same as for other bosch injection pumps fitted to the JX engines to time the pump.

[ringo]

Yes its the same.

Do a search for pump timing and you will get the relevant info - its aimed at JX and AAZ's but its the same.

Ringo

[peteabbott]

Hope this helps............
http://www.vwdieselparts.com/injtim.htm" onclick="window.open(this.href);return false;

OR http://www.cs.rochester.edu/u/jag/vw/en ... iming.html" onclick="window.open(this.href);return false;

When I did mine I used a standard engineers DTI with a magnetic base, this is OK but you must find a convenient place to clamp the base to. I actually removed the base and used the threaded end and used 2 nuts on the throttle cable bracket. Also I could not find the TDC mark on the flywheel so I removed an injector and inserted a soft stiffy bit of wire and fealt TDC.

Good luck
Oh just found another one, not boring you now I hope

http://www.oneilcastro.com/A2Bentley/FU02/ch5.5.3.html" onclick="window.open(this.href);return false;

[ringo]

I bought the adaptor from brickwerks to stick the DTI in. Then a year later i bought the DTI gauge. Jesus, i hope its worth while going to all that expense (i havent ran the engine much since doing it so cant tell if its running well or efficient or not).

There is no TDC mark on the flywheel - its on the clutch. And unless you know what your looking for, its easy to miss it.

Basically theres a kind of tab about 4mm thick on the clutch, and then about 15mm on theres a V shaped notch. The V shaped notch is TDC.

I went for 1mm of lift at TDC as i've read that this is best for efficiency, cold starting, performance and lower EGT's.

Its dead easy - and i wonder why i put it off for so long.

Ringo

PS DTI's are awesome arent they. Its a proper bit of engineering that. Reminds me of my apprenticeship. Also one of my favorite books, "Trustee from the Toolroom" by Neville Shute. Sorry - a bit random that....

[camper]

Pump timing adapter for IDI is this right one from brickwerks? thanks for the replies.

[peteabbott]

Thanks Ringo, I do have trouble finding them little exciting bits! Wish I had a good look with the engine out but there ya go. I timed mine at 0.95 and like you say it is quite easy................ I wonder if the extra 0.05 would make a difference.

[camper]

http://www.vwdieselparts.com/injtim.htm" onclick="window.open(this.href);return false; Reading through this for adjusting the pump timing it said the cam locked in place & pin in the injection pump then turn the engine .This dont look right to me .

[peteabbott]

Yes it does sound a bit misleading. Basically I would fit a new belt and tensioner. No.1 piston TDC , camshaft "keyed" so that cam lobes on No.1 are uppermost (I marked the bottom pulley at this point TDC) locking pin or suitable size twist drill in pump pulley and fit your new belt. Remove all locking bits. Spanner the engine over a couple of times and recheck TDC and cam position. Fit the DTI and away you go. Depending on your pump type adjustment is made either by moving the whole pump on its clamp bolts or the slotted holes on the pump pulley. When you are actually doing it all this will make sense........I hope. Are you OK using the DTI and settings ?

[camper]

I have replaced cambelts on 1.6/1.9 diesels so thanks.I will borrow beg or buy the vw 2066 adapter&dti gauge.But had problems yesterday at my local tesco car park the van wouldnt start hot .Run the batt down and in the second time in 25 years had to call out rescue services and thats owning loads of vws.I think its fuel starvation it could be the pollak electrical valve i installed when i run it on vegi oil .It starts first time cold but when hot and left switched off on returning to the vehicle its a problem to start but runs fine then.Today i am taking the pollak fuel valve out and associated parts for the veg oil system then i will go through checks ensuring the fuel lines are supplying&returning to the filter then engine checks .Thanks for the replies.

[peteabbott]

Strange that not starting thing when hot. I had the same thing after I did my engine swap. Checked everything and the only thing I found was that although everything was OK .(Glowplugs timing injectors and compression) was to disconnect the sensor that tells the glowplug relay not to come in when the engine is warm/hot. Seems for some reason it needs plugs hot and cold. Been disconnected for a year now and no problems, maybe it will shorten the plug life ? I love these old motors because when I did my apprenticeship there just wasn,t the electronics and I really struggle with the electronics but not the mechanicals. Hope everything turns out OK for you. (Oh and sorry mate, I wasn,t trying to teach you to suck eggs)

[camper]

the suck eggs only self tought through owning Aircooled from the 70s to diesels now and appreciate advice & help from others experianced or professional thanks for your advice.I found a collapsed clear plastic fuel return pipe going to the thermostat filter and what a diffrence it made on performance when i replaced it .Fully charged the battery and in the morning will take it for a run & see if the hot start problem is improved.