Fuel Injection Pump

[RebelV8]

Checked my Injection pump today and the timing marks are about 5 or 6mm apart. Obviously not helping in the starting dept, lol.

What a nightmare to loosen it enough to adjust it though, does anyone know of an easier way to get to the nut that sits between the pump and the engine?

The only way's I can think of is to either remove the inlet manifold or, using several socket wrench extensions, approach it from the rear of the engine. Spent a couple of hours trying to get to it tonight, but ran out of light, lol

[BUSHWHACKER]

Take the engine out then it's a little easier.

Try removing the passenger front wheel and see if you can get at the nut that way.

I think I used a 3/8" drive socket set and a couple of long extensions and a wobbly bit.

[RebelV8]

ok, I'll try that, removing the wheel that is, not the engine

[RebelV8]

Managed to get the nuts loose and adjusted the injection pump, both timing marks line up on the pump now as do all the timing marks for the crank and cam but it still seems to be a bit off to me, there's also a misfire on idle.

I'm going to try resetting the ECU to see if makes a difference. I'm using a second hand block and a new head with the injection pump from my original engine. Is there anything I could have missed?

Thanks in advance

[andyverran]

Your confident the IP is delivering fuel correctly to all 4 cylinders now?

Is it the same cylinder that's missing at idle and which one is that?

Do all 4 run ok above idle?

No obvious leaks?

[RebelV8]

Your confident the IP is delivering fuel correctly to all 4 cylinders now? - Yes, had fuel spitting from all four when the pipes leading to the injectors were loosened slightly

Is it the same cylinder that's missing at idle and which one is that? - not checked for which cylinder it is yet (gets dark so quickly by the time I get in from work now

Do all 4 run ok above idle? - yes, no misfire when revving

No obvious leaks? - haven't noticed any obvious leaks as yet

Just had a thought though, I'll check the blanking plates that I fitted to the EGR system, I guess there might be an air leak there, possibly.

The only other thing I can think of is that the timing may be slightly out if the pulleys moved when I adjusted the IP. Need the weekend to check that though

[andyverran]

The only other thing I can think of is that the timing may be slightly out if the pulleys moved when I adjusted the IP. Need the weekend to check that though

Isn't the pump pulley on a key? can't slip if it is...I can't find my pump pics to check, memory is a little faded...

[RebelV8]

Isn't the pump pulley on a key? can't slip if it is...I can't find my pump pics to check, memory is a little faded...

Sorry, I meant the pulleys for the cam and crank, I moved the IP about 5mm clockwise (as you look at it from the front of the engine and was wondering if this may have caused the cam and crank pulleys to have moved off their timing marks slightly

[BUSHWHACKER]

Sorry, I meant the pulleys for the cam and crank, I moved the IP about 5mm clockwise (as you look at it from the front of the engine and was wondering if this may have caused the cam and crank pulleys to have moved off their timing marks slightly

The cam and crank won't be affected, just the 'timing' within the pump.

The mis-fire could just be a dribbly injector when idling and may sort itself out eventually.

[RebelV8]

ah, ok.

I've switched the lights and ignition on, then disconnected the batteries tonight in order to try erasing the memory of the ECU, if that does nothing, I'll investigate the timing of the IP some more at the weekend.

[tweak'e]

sounds like you have efi injection pump.
if so, timing injection pump won't change the timing. the base timing is only used at startup then ecu corrects it.

for poor idling i would check for air being sucked into fuel lines/filter/IP. injection pumps have less draw at low rpm so any air leak or restriction in the fuel lines can cause problems in the low rpm and get hidden by the higher pump draw at high rpm.

[RebelV8]

Yes, it's an EFI IP, got everything connected up again tonight, turned it over and it started but not very well, it sounds like the engine noise that you can hear when you stand at the front with the bonnet open is muffled, it's just not quite right.
It idle's but seems to stutter when you rev it a little, no huge amounts of smoke when running though, stinks a bit like. will be able to spend more time on it in the daylight at the weekend though

Just thinking (as you do when it's too late, wet and dark to do anything outside), misfire could be caused by worn out glow plugs?
Poor running could be too much air?

So, as there's no elbow pipe attached to the turbo at the minute and the air filter lid isn't attached either, meaning that the plug that attaches to the air filter isn't plugged in either. It's therefore possible that the turbo is sucking in too much air and the air filter sensor isn't sensing anything.

If I connect the air filter lid and the elbow pipe on the turbo that might make a difference and if I replace the glow plugs, that should help as well?

Something else to try at the weekend, lol

[tweak'e]

yes it would help if the air temp sensor was connected.

[RebelV8]

jobs for the weekend, depending on the weather, :-)

[NiftyNev]

It's a Air Temperature Sensor not an Air Flow Sensor so if everything else is ok the engine should idle fine. Try checking the TPS.

http://toyotasurf.asn.au/forum/viewt...p?f=62&t=19390

Crank and Coolant Sensor all connected?

Nev.