9 replies to this topic

[josh.evans]

hi just wondering how hard it is to build a mini engine if you have never done anything like that before also what sort of tools will be required?

thanks
josh

[Southy]

It's not very hard building a Mini engine aslong as you put everything together correctly and torque everything up correct.
The biggest killer of an engine is dirt whilst being built, make sure everything is clean and cleaned again when putting stuff together, even new parts can still have particals of dirt located on them so double check everything.

The tools which you will need for rebuilding an engine are:-
Oil can with 20/50's in
Decent torque wrench
1/2 Multi Hex socket for con rod bolts
Various AF sockets and/or spanners ranging from 3/8 upto 1inch
Rachet
Gasket sealer
Feeler guages
Brake cleaner
Clean rag/tissue

[Southy]

Also to add a copy of the Haynes Manual is very good for your torque settings and how things should be put together. Aslong as you read through and follow it carefully everything should go together well.

[Ethel]

It would be hard to imagine an easier one. I suppose it depends on how you approach it - assembling a "kit" engine will be less complex than taking on the project yourself & outsourcing the machining jobs as & when.

[cooperrodeo]

Depends on your starting point. If you have engine and gearbox with flywheel well nigh seized onto the crank, you will find this the most difficult part. They usually come off easily but the first time I did it was the most difficult thing I have ever had to do on a Mini. Everything else on a Mini engine is a doddle.

[Big_Adam]

What I'm doing is getting the engine I need built, the one I want I can try myself.

As I don't want to mess anything else. But the mini builder DVD helps.

[Guess-Works.com]

It's best to start with a complete engine if it's your first build, many because, building an engine from bits, there's always going to be something missing, so it's better to strip it down, get a load of self seal bags and put every nut bolt etc into a bag and label it...

Then as above, cleanliness is of utmost importance.

You're also going to need some specialist tools apart from the every day items..

Piston ring compressor, feeler gauges, DTI, stud sockets to mention a few

[Southy]

Good call there Guesswork's totally forgot about a piston ring compressor lol.

I also agree, finding a full unit to strip down would be the best bet for your first attempt as you know you will have everything you need there to put it back together again.

Also I might add, take pics as you strip the unit down so you know where bits and pieces go, every little helps and all that.

[samsfern]

their not too hard to do at all, just make sure you cover everything in new engine oil as you put it back together. I dont mean just a smear from a finger, i mean dripping in oil, lol

[Jordie]

Engine builder dvd is a good watch, but dont take it as gospel. It just gives a general idea on the process. Dont go out buying it tho, im sure someone will lend you it