Shippers · Mar 23, 2023

LetsHopeItFits said:
The ECU is working, at least to some degree, because theres power to the idle control valve.
Ive noticed that the garage have put the coil in upside down. Theres spark, so its working somewhat. Other than making the spark, does the coil serve any other function?

No....if youve got a spark and with easy start sprayed into air intake your not getting a cough or fart pull a couple of plugs out and spray easy into cylinders put plugs back and crank and if you have spark it will fire...by the way is it the same vehicle your planning your French trip in that your posting in expeditions thread?...

LetsHopeItFits · Mar 27, 2023

Shippers said:
is it the same vehicle your planning your French trip in that your posting in expeditions thread?...

No. A couple of mates and I have bought a tiny Daihatsu Cuore to do the mongol rally in, so that will be the steed of choice. I just want the disco fixed so I can sell it.

Shippers · Mar 27, 2023

LetsHopeItFits said:
No. A couple of mates and I have bought a tiny Daihatsu Cuore to do the mongol rally in, so that will be the steed of choice. I just want the disco fixed so I can sell it.

Have you pulled a couple of plugs and sprayed easy start straight in as I suggested?...

LetsHopeItFits · Mar 28, 2023

No, Ive come home for easter. Will give it a crack.
The garage who had it took the coil out and put it in upside down. When I flipped it I noticed it was only connected to 4 wires, and Im certain there were 5 before. Ive looked at the wiring diagram and I cant work out which wires they are. Theres also another connector on the coil.
Am I risking an expensive mistake if I just try them randomly?

discool · Mar 28, 2023

Perhaps the white wire to the suppressor has become detached from the coil.. as it easily can.

LetsHopeItFits · Mar 30, 2023

discool said:
Perhaps the white wire to the suppressor has become detached from the coil.. as it easily can.

Would that stop it running?

discool · Mar 30, 2023

LetsHopeItFits said:
Would that stop it running?

Nope, but it stops ignition interference.

Again the ignition switch in position 2 there should be 12 volts (or battery voltage) at the coil, and only when the engine has been re-mobilised…
No voltage … no starting.

LetsHopeItFits · Mar 30, 2023

Its got voltage across the coil. Its got spark.

Ive put it up on facebook marketplace, will break if theres enough interest (mainly the engine)

discool · Mar 30, 2023

LetsHopeItFits said:
Its got voltage across the coil. Its got spark.

Ive put it up on facebook marketplace, will break if theres enough interest (mainly the engine)

Thats a shame. But thats how it is now for D1 V8s, no one wants them, I tried to give my disco away to a relative
once

I don't use mine much now and so only has done around 49800 + miles the last time I looked I only purchased it for a particular job and thats been done for a few years.

Back to yours. The V8 EFI is a simple engine, having owned one for the last 36 years, although i’m an engineer although not automotive, so all I understand is” suck, squeeze, bang, blow” and the engine will run, so as it appears to me you have checked all thats involved with an EFI a few times, so your should run.

Shippers · Mar 30, 2023

For f.ucks sake forget wiring diagrams pull a couple of plugs squirt easy in then crank if it coughs or farts youv'e got spark which means your wiring is ok then work back through inlet manifold etc its not rocket science it's elimination...

Shippers · Mar 30, 2023

discool said:
Back to yours. The V8 EFI is a simple engine, having owned one for the last 36 years, although i’m an engineer although not automotive, so all I understand is” suck, squeeze, bang, blow” and the engine will run,

Correct but according to op he's got spark but can't fire engine and wont start on easy...that doesn't add up...

LetsHopeItFits · Mar 31, 2023

Shippers said:
Correct but according to op he's got spark but can't fire engine and wont start on easy...that doesn't add up...

discool said:
so your should run.

Yes, exactly, it should run.
The only other thing that could be happening is that the bores of the cylinders have been washed so badly that it no longer has compression.
I tested the easystart and the plugs by spraying the plugs whilst cranking the engine. The result is exactly as you would expect, it burns.
Was raining so couldnt be bothered pulling all the plugs out, but tested the same plug in all the HT leads and they all worked

Shippers · Apr 1, 2023

LetsHopeItFits said:
Yes, exactly, it should run.
The only other thing that could be happening is that the bores of the cylinders have been washed so badly that it no longer has compression.
I tested the easystart and the plugs by spraying the plugs whilst cranking the engine. The result is exactly as you would expect, it burns.
Was raining so couldnt be bothered pulling all the plugs out, but tested the same plug in all the HT leads and they all worked

So you used a spare plug? If so that only tells you that plug works...easystart evaporates v,quickly...you need to spray it into piston chambers then replace plug then crank not spray a plug out of engine and crank if that is what your doing...

LetsHopeItFits · Apr 1, 2023

All the plugs are brand new.
I sprayed into the throttke body whilst the engine was cranking continuously for 10+ seconds and nothing happened

Shippers · Apr 2, 2023

LetsHopeItFits said:
Ive put it up on facebook marketplace, will break if theres enough interest (mainly the engine)

A V8 that doesnt run is a boat anchor...pull out plugs and do as I suggested if it fires work back through induction system...a worn engine with piston slap will start with easy as that is it's most common use and engines dont get addicted to it thay just need rebuilt...

kermit_rr · Apr 7, 2023

Have you got fixed yet? Where are you up to?
You've established a spark to each plug lead, the engine cranks.
Have you got compression? Does it sound normal when it cranks? Have you checked the gap on the new plugs?

LetsHopeItFits · Apr 15, 2023

kermit_rr said:
Have you got fixed yet?

No

kermit_rr said:
Where are you up to?

My neck in uni work.
Ive had enough. I cant fix it, I dont have a compression tester and Im not buying one either. I cant justify spending hundereds for soneone else to look at it with the possibility of fixing it or not fixing it, then having to pay hundereds more getting it back to break it.
If anyone would like to buy it, make me an offer. If anyone is a particularly handy mobile mechanic and thinks they can fix it for no more than £350 cash then please do. Free tea and pizza while you work of course.

kermit_rr · Apr 15, 2023

Aberystwyth? Thought you were near Bangor somewhere. Winner of there's someone close who could help you out...

LetsHopeItFits · Apr 15, 2023

kermit_rr said:
Aberystwyth? Thought you were near Bangor somewhere. Winner of there's someone close who could help you out...

Uni in Aberystwyth, home further north, not far from Bangor. Disco at uni because I cant drive it home

LetsHopeItFits · Jun 16, 2023

Updeate.
Bad news Im affraid. Expert says its not got compression. Likely cylinder bores washed from all the EZ start.
What are my options from here? I see 3 options really. I can break/sell for scrap, I can take a gamble on a 2nd hand engine, or I can rebuild mine (If thats something a DIY enthusiast can manage? Not worth paying to rebuild it imo)
Given that its the bores/block which is buggered, could I use a 4.0 or a 4.6 bottom end with my 3.9 heads? (From what I understand, the 4.0 has the same bore and stroke but stronger bits?)
Thanks!

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