From: jaymanek

My 123 was born with the very last of the M115 type engines, same basic engine used across most of the smaller engines across the range from the 60's onwards.
Although very strong, M115 does not like to be tuned and is very heavy on juice..

Some time ago I deided to upgrade to the later 200 engine. kept an eye out on Ebay and around two years ago I spotted an 80,000 mile car with front end damage (bent bumper and bonnet).
Bought that and since then its been sitting on my drive waiting for me to get the courage up to do the transplant.

So I got talking to Mr Ian B Walker at the last MBClub get together and we arranged to do it last weekend.

I arranged all the new parts needed in advance, this included a 5 speed gearbox (to replace my 4), gear selectors, clutch, propshaft, Propshaft donuts, engine mounts, leads, plugs, Distributor cap and all the rest of the service items needed..

Mr Walker and two enthusiastic apprentices arrived at around 7.30 on Saturday morning and we wasted no time.

We all worked through the day, no breaks.

By around 11 am we had both engines out of both cars... This was the easy bit!!

The rest of the day was spent refitting all the new parts and lets just say putting things back together is a lot harder than taking them apart!

After a lot of extending of wiring looms and messing with clutch plates and so on we finally had it all together at 9.30pm.

Mr Walker, his son and friend were all fantastic so special thanks to them.

Sunday was spent tidying up, tightening bolts and servicing the new engine... Still a few finishing touches to be made however.

The result is fantastic, with that five speed box and later engine, she's better than new! who knows, might even get more than 10mpg now!

Here are the pics:

[B]Original Engine[/B]
[IMG]http://www.jaymanek.homechoice.co.uk/123Engine/1.jpg[/IMG]

[B]New Engine[/B]
[IMG]http://www.jaymanek.homechoice.co.uk/123Engine/2.jpg[/IMG]
[B]
Work Begins on the donor car[/B]
[IMG]http://www.jaymanek.homechoice.co.uk/123Engine/3.jpg[/IMG]

[IMG]http://www.jaymanek.homechoice.co.uk/123Engine/4.jpg[/IMG]

[B]The old motor coming out[/B]
[IMG]http://www.jaymanek.homechoice.co.uk/123Engine/5.jpg[/IMG]

[IMG]http://www.jaymanek.homechoice.co.uk/123Engine/6.jpg[/IMG]

[IMG]http://www.jaymanek.homechoice.co.uk/123Engine/7.jpg[/IMG]
[B]
And the new one in![/B]
[IMG]http://www.jaymanek.homechoice.co.uk/123Engine/8.jpg[/IMG]

[IMG]http://www.jaymanek.homechoice.co.uk/123Engine/9.jpg[/IMG]

[IMG]http://www.jaymanek.homechoice.co.uk/123Engine/10.jpg[/IMG]

[B]Facelift Headlamp Mod (Grill Mod to Come!)[/B]
[IMG]http://www.jaymanek.homechoice.co.uk/123Engine/11.jpg[/IMG]