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DISCUSSION => Swaps, Turbos, Buildups => Topic started by: odbod on January 22, 2009, 02:35:03 PM

Title: M47 Crank Picture - Advice needed for 2.0l build
Post by: odbod on January 22, 2009, 02:35:03 PM

Hi,

Prob building 2.0l M42 using M47 Crank and M44 pistons. Can get this one brand new very cheap (may be more avilable later).

(http://img141.imageshack.us/img141/4886/17d81zt4.jpg) (http://imageshack.us)

523068 2246 861 37RC4 88

Not sure what this means but I'm guessing 2246 861 is a partial part number and 88 refers to the stroke.

Its from a Rover 75 that used the M47 diesel engine.

Question is, before I jump, does it look right, I am 99% sure it is OK.

Only thing is the nose looks short, but then it does have the 8 counterweights (89.5mm crank has 4 according to MM).

On another note I will need to skim 2.5-3.0mm off the pistions, Do M44 pistons have a dish in them like M42 ones and when they are skimmed do the valve pockets need extending? I am leaving the head stock.

I'll prob buy new pistons as they are listed at $249 or 139 euros so should be £125 in the uk tops and you get rings and wrist pins etc in the set I think (looks like it in ETK)

Thanks

Title: M47 Crank Picture - Advice needed for 2.0l build
Post by: halcrontech on January 22, 2009, 11:05:10 PM

The nose looks a tad too short though.

Title: M47 Crank Picture - Advice needed for 2.0l build
Post by: Boyracer on January 23, 2009, 04:51:43 AM

Yes, nose is too short and it requires extension of some sort.

Title: M47 Crank Picture - Advice needed for 2.0l build
Post by: odbod on January 27, 2009, 03:24:11 PM

Right, so I've picked up an even cheaper rover crank, and here's some pictures,

Front end, needs turning down, oil pump drive milling and extending  :D
(http://img231.imageshack.us/img231/287/dsc00508tw9.jpg)

Back end appears to have had a timing ring on it at some point

(http://img265.imageshack.us/img265/3389/dsc00509kw6.jpg)

Marking shows it to be 88mm stroke, so not an M47N

(http://img265.imageshack.us/img265/7282/dsc00510uo6.jpg)

All in all a bit of an odd combination, just as long as there is enough meat on the nose and the timing ring mount doesn't give any hassle when balancing it should be fine, (but then I'm not going for 300bhp and driving a SC! ;) )

Title: M47 Crank Picture - Advice needed for 2.0l build
Post by: halcrontech on January 29, 2009, 08:48:56 AM

Cool!! Nice find you have there!!

Title: Re: M47 Crank Picture - Advice needed for 2.0l build
Post by: JXD on January 28, 2020, 12:40:03 PM

Quote from: odbod on January 27, 2009, 03:24:11 PM

Right, so I've picked up an even cheaper rover crank, and here's some pictures,

Front end, needs turning down, oil pump drive milling and extending  :D
(http://img231.imageshack.us/img231/287/dsc00508tw9.jpg)

Back end appears to have had a timing ring on it at some point

(http://img265.imageshack.us/img265/3389/dsc00509kw6.jpg)

Marking shows it to be 88mm stroke, so not an M47N

(http://img265.imageshack.us/img265/7282/dsc00510uo6.jpg)

All in all a bit of an odd combination, just as long as there is enough meat on the nose and the timing ring mount doesn't give any hassle when balancing it should be fine, (but then I'm not going for 300bhp and driving a SC! ;) )

I can't find pics of a modified Rover crank  :(

Somebody can help me ?