Multi Point Injection Rover Coopers

Back to Multi Point Injection Rover Coopers...

MPI Engine replacement question. (7 replies)

southender
6 years ago
southender 6 years ago

Hello, Long story, but my 1998 MPI mini overheated on the motorway, it got trailered to a friend's garage, it's had a reconditioned head, new water pump,

southender
6 years ago
southender 6 years ago

Hello, Long story, but my 1998 MPI mini overheated on the motorway, it got trailered to a friend's garage, it's had a reconditioned head, new water pump, thermostat, and head gasket, as head gasket had blown between 2 and 3 cylinders. It's all been put back together, and ticks over fine, but after being driven for 10 minutes, it over heats again. My mechanic now thinks it may have an internal crack in the block, and needs replacing? My question is, where would be a good place to obtain a reconditioned block? As a bit stumped on where to look? Any help would be greatly appreciated. Graeme, Essex.

southender
6 years ago
southender 6 years ago

Thanks guys for the info, very helpful. I'll pass on the Information to my friend at his workshop when I speak to him, he was doing so more tests today, so I'll wait and see what the outcome is? I have found a few sources on a reconditioned and from some breaker's for a short engine, so just the waiting game at the moment. Oh for the love of mini's a!! Cheers again guys.

lwarrine
6 years ago
lwarrine 6 years ago

Is there evidence that the head gasket has blown again .... e.g. pressure test, sniffer test the coolant ...... or take the spark plugs out, turn it over and see if it throws water out the holes !
Can you compression test 2 & 3 .... as if cracked presumably compression will be low..... or could be head gasket
Take the head off and visually check the block
Before fitting the recon head did they check the flatness of head & block
Was a good quality head gasket fitted ..... had problems with poor quality ones in the past

The reason I say this is because I ran a MG Metro Turbo as a daily car for a while many years ago now. Lent it to someone (who shall remain nameless) who completely cooked it and as a results it had blown the head gasket. So got it home, whipped the head off, head was fine but you could visually see it had cracked the block between 2 & 3 ! As it was my only way of getting to work just fitted a new head gasket and away I went ... the head gasket would last a day or two ..... so just used to change it a couple of times a week ! If things got bad and it wouldn't start then had to take the spark plugs out, turn it over, let it eject the water out before quickly refitting the spark plugs and firing it up before the chamber filled with water again ... and generally just used to leave it running when refilling with petrol if I could get away with it ! Quite amazing how robust the old A-series can be !!!

Anyway ..... If you haven't already, I'd take the head off again and inspect for any evidence / witness marks of the head gasket failing ... and visually check the block. If the block has cracked then might be easier to source a complete recon 'short' engine and fit that. As if you get just a block then might end up having to rebore it / new pistons etc etc.

You can try ebay for a MPI block or engine ....Or might be better off picking up the phone & calling some engine builders e.g. Rob Walker Engineering, Southam Mini centre, MED etc.and see what they say ... may be able to sell you a recon short engine on a non exchange basis .... or take your MPI engine and fully check it ......

Think it would be best to try to confirm whether or not the block is actually cracked before trying to find a replacement .......

AMS
6 years ago
AMS 6 years ago

As above. You can also get a leak down test for the cooling system. There should be a local garage that can do that for you.

Peter Laidler
6 years ago
Peter Laidler 6 years ago

Hey Iwarrine I shrieked with laughing at para 2 of your answer. My friend had an 1100 like that, only a tad worse but.............. Happy memories........ Chuckling as I type. Where are you Pete McDonald?

lwarrine
6 years ago
lwarrine 6 years ago

[QUOTE=Peter Laidler;n168735]Hey Iwarrine I shrieked with laughing at para 2 of your answer. My friend had an 1100 like that, only a tad worse but.............. Happy memories........ Chuckling as I type. Where are you Pete McDonald?[/QUOTE]

Peter -> Yes it's amazing how quickly you can do a head gasket on an Mini / Metro with a bit of practice !

Peter Laidler
6 years ago
Peter Laidler 6 years ago

My wife's big 1800 Triumph Dolomite was the same too. I had a head change on that down to a fine art. Breathed new life into the term 'head job'!

Back to Multi Point Injection Rover Coopers...Back to Forum