All over for G164 CKV... didn't make the moon after all.

[PW@Woodsport]

As stated after one try (with the pack) even with the key removed you could hear a continuing clicking for maybe 20 seconds (solenoid?) and that was the point smoke appeared.

There is the other thing, those symptoms don't fit with a seized engine, now i've no doubt it is siezed somehow (although i still don't think it's crankshaft) , but it would appear you have another fault going by that info.

Forgive me for being cynical, but two faults developing overnight on your driveway is really pushing credibility somewhat, unless they are directly related to one another.

[craig]

Come on Rob, get back on the Horse! You've had a cracking run outta that motor!

Don't let it die! V6 or Turbo it!

[PW@Woodsport]

I still don't think it's dead, not if it was being driven the night before.

[craig]

I still don't think it's dead, not if it was being driven the night before.

Certainly seems odd

[HighwayStar]

All seems to have started with the replacement alternator. Got some of the normal telltale lights on the dash... battery and brakes and handbrake, on at the same time and a recon alternator was sourced and the old one confirmed as shot. Drove it home afterwards after a brief run (battery was still dead when I picked it up) and it wouldn't start the next day. No interior lights and no lights on the dash.
Only started a few more times after a new battery went on two or three days before its demise (and the garage I got both batteries from reckoned the old one was in fact OK after charging and testing.. I was asking for a replacement under warranty) and the only time it started after being left overnight was after a great run to Yarmouth for an overnight party. It was a bit reluctant to start in the morning and I was surprised considering the new battery. The next morning after a great run home... nothing again.

[PW@Woodsport]

Problem is none of the charging or battery issues relate to a seized crank.... Which happened on the drive overnight.... Does not compute!

[planted1]

Seized crank,sounds like oil starvation.
Running fine the day before, when the oil is hot and thin,
and appearing the following day,when the oil is cold and thick,
could be a faulty oil pressure relief valve.
With the valve faulty and very low pressure/volume of oil,your mains would have been starved, especially on a cold start engine.
What was your oil pressure like?
Is there any debris in the valve making it stick?

[rev3turbo]

Somehow get it upto a propper mr2 specialist such as Paul Woods? Im sure even at the worst case scenario of a new 2nd hand engine, including transport oop north, you'd be looking at 500 quid... and if he can save it, then its a ££ bonus

[rev3turbo]

On removing the belt, and turning the crank, it's not good. Very stiff and awful noises.

and removal of the starter motor????

[PW@Woodsport]

Highwaystar, i've spken to Luke and between us we think number 4 bore is siezing up due to overfuelling on that cylinder and bore washing, he is going to throw a scope down the bore but it sounds like that is the problem.

Either way the engine has probably had it.

I've offered you/Luke a free Rev3 NA engine to help you out, it needs a harness and ECU but everything else is there, it would only need pallet shipping paying for (around £80).

Anyway it's yours if you want it.

[craig]

I've offered you/Luke a free Rev3 NA engine to help you out, it needs a harness and ECU but everything else is there, it would only need pallet shipping paying for (around £80).

Anyway it's yours if you want it.

Can't say fairer than that!

[Super_red]

If it was that dry of oil (which i'm pretty sure it wasn't) it would have nipped up very quickly the day before while being driven.

and was red hot inside when parked up then it will seize as its cooled down

Can you explain in mechanical terms how that happens? As far as i'm aware metal expands when hot (ie the crank journal) and metal contracts when cold.... so how can it seize when cold if it didn't seize when hot?

Becasue the oil is no longer flowing. If it had very low oil pressure the little oil left on the crank bearings would evaporate off after the oil pump is stopped while the crank is still hot (hotter than normal due to low oil pressure). Hence the engine would then seize when stoped during the cool down. It might not fuse the metal but the evaporating oil would leave all the gunk in it which dries rock solid.

[PW@Woodsport]

I would agree, if there was no oil in the engine and a lack of pressure, but no warning lights were present on the last drive, so it had plenty of oil and pressure.

Cylinder 4 was full of fuel, to the brim, so the engine was hydrolocked on that cylinder, which will have bore washed that cylinder to destruction, so not a seized crank by the look of it.

[KarlBristol]

Highwaystar, i've spken to Luke and between us we think number 4 bore is siezing up due to overfuelling on that cylinder and bore washing, he is going to throw a scope down the bore but it sounds like that is the problem.

Either way the engine has probably had it.

I've offered you/Luke a free Rev3 NA engine to help you out, it needs a harness and ECU but everything else is there, it would only need pallet shipping paying for (around £80).

Anyway it's yours if you want it.

What an offer

You wouldn't happen to have any free v12 engines going would you ... I'd settle for a free tubby engine though lol

Anyway ... I hope to see this car up and running again - would be ashame to loose it from the roads as its a nice clean example

Could you maybe use this as an opportunity to have it only as a weekend/hobby car?

[HighwayStar]

That's a most kind and generous offer Paul. Truly you are a shining star amongst us.
I'll speaking with Luke next week again about options so I'll be able to let you know soon.
Once again my many thanks.

[PW@Woodsport]

Hey it's nothing mate, and if it keeps another Mr2 on the road it's mission accomplished.

Let me know and i'll sort it with Luke.

[raptor95GTS]

stunning offer Paul

[Charged]

That's more like it Rob

[Peter C]

All this makes me miss my MR2.

[HighwayStar]

Yeah but you still have the old merc to entertain you fella. I think I'm gradually reaching the conclusion that history or not I'm going to break it... It just isn't fair to the other half to keep spending money I don't have on it.