Engine Spooling on its own

[herbalskateboards]

Recently carried out an engine conversion in the caddy. Now running a 1.6td (engine conde JR) from Mk2 golf.

So we have the engine running and it was real lumpy and when you put your foot down enough to begin the turbo spool, it just keeps going! Even if your not on the accelorator.

So we did the DTI stuff, timing was out by 30 (mm?? .3mm..??) anyway, it was out by 30 on the dial. So we got that up to scratch and started her up.

She idles real nice now (or a lot nicer anyway!) Not nearly as lumpy... BUT the spooling thing still happens?!?!

Can anyone shed some light on this? Im so close now its silly...

Things done:
double checked all the timing
DTI done to within a fair range
Throttle NOT sticking (or externally at least)

Please guys, really want this drivable this weekend...

[burn_your_money]

Sounds like you need to turn the max fuel screw down a bit. Maybe try disconnecting the LDA hose first and see what that does.

Is it smoking?

[herbalskateboards]

That might make sense.

The pump has been modified by Regcheeseman on the caddy forum. Govnor and boost pin.

Not smoking. Was heavily before the DTI was done.

[burn_your_money]

What is DTI?

[herbalskateboards]

Its the timing on the pump...

[arnold]

Unbolt the top lid of the LDA,sometime's it is filled/clogged with oil pushing the boost pin down a bit

[herbalskateboards]

Unbolt the top lid of the LDA,sometime's it is filled/clogged with oil pushing the boost pin down a bit

I will give this a go. Although i wouldnt have thought it would be too dirtl in there as Reg did the mods for me on the pump.

A little update:

I turned the fuel down (a total of 1.5 turns!) and it would idle nice and spool when it needed to. Drove it all weekend, locally, (no motorway) and it was fine. Took it to work this morning and it go super hot, and started doing the self sppoling thing again...

Any more suggestions are welcome! Thanks

[burn_your_money]

With the engine hot remove the oil cap and see how much white smoke is puffing out. The bottom end might be gone. If you don't have a cam baffle just lightly lift the oil cap or you'll get oil everywhere.

Is your air filter clean?

[herbalskateboards]

With the engine hot remove the oil cap and see how much white smoke is puffing out. The bottom end might be gone. If you don't have a cam bafflem just lightly lift the oil cap or you'll get oil everywhere.

Is your air filter clean?

Air filter is VERY clean - Its band new!

As for smoke - there is a fair bit coming from the exhaust. Whit/blue in colour and smells!

I am going to go for a compression test at the garage and that will tell me if there are any problems with the bottom-end/pistons etc.

Not looking forward to it...

[burn_your_money]

White/blue + smelly exhaust is usually retarded timing. Do you know what it was timed to? Did you ensure that the cold start cable was properly adjusted before timing it?

[herbalskateboards]

White/blue + smelly exhaust is usually retarded timing. Do you know what it was timed to? Did you ensure that the cold start cable was properly adjusted before timing it?

Timed it myself. I don't fully understand the measurements used! It should be done to 1.00mm (+/- 0.05mm) I think it was left just under 1.00mm.

But, we had the engine running as it should have for 2 days of tow driving before she started going back into runaway mode. When it was running for those two days, there were no signs of excessive smoke or smell...

Thanks

[burn_your_money]

Check your timing again. Maybe you didn't tighten up a bolt enough and your pump has started rotating.