Spare M42 refresh/rebuild

[fresh_TD]

Had some time today, so I cleaned cams and cam trays. The machine shop is backed up, and have not started to work on the M47 crank. I will pick it up tomorrow, and look for another shop to do the work instead.




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[econti]

Subscribed. Bearings wise what are you going with?

[mamzak]

Fantastic work so far. Will be keeping tabs on this

[stonea]

Really excited to find this build! I really want to do this one day, I'll have to come up so you can take me for a spin once its finished.

[blads99]

cool build.

Im actually considering this.
since my m42 isn't my DD.

[fresh_TD]

cool build.

Im actually considering this.
since my m42 isn't my DD.

Go for it man.. sourcing the crank will be the hardest part, unless you want to buy new from dealer:-)

Really excited to find this build! I really want to do this one day, I'll have to come up so you can take me for a spin once its finished.

I'll post once is all finished up.. there's still a few things I have left to do. Get the M47 crank modified, and M42 crank bolt modified. Then reassembly.

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[Sladek]

subd!

[fresh_TD]

Finally got the M47d crank done. Dropped it off at CGM Motorsports over in Millersville, MD, and picked it up today. Got the crank magnafluxed, polished, balanced, had the snout grinded down to fit the M42 crank pulley, and new keyway installed. The damage was $200.. I think it's a very fair price for the work. what do you guys think?

[roguetoaster]

It's great, fair price for the work too!

When you had the shop do the work how did you let them know what you wanted? Did you just send them info, drop off your M42 crank along with it or what?

[fresh_TD]

It's great, fair price for the work too!

When you had the shop do the work how did you let them know what you wanted? Did you just send them info, drop off your M42 crank along with it or what?

I dropped off both cranks so he could compare/measure the snouts along with the crank pulley to verify fitment. The guy had done a few of these before for another customer, so I didn't have to tell him much.

[stonea]

Hmmm, maybe I should pick up a crank and give it to them since its still fresh in their mind, lol

[mike.bmw]

Nice work! One of my next projects is to address oil leaks from the timing cover. I'm debating whether or not just to pull the engine over winter and spend a month or two refreshing the engine. Though maybe I should just find a spare engine like you did. :)

[bmwman91]

Cool build, I am liking it so far!

As someone with a 2.1L M42, I can tell you that you are going to like running that M47 crank!

[fresh_TD]

Cool build, I am liking it so far!

As someone with a 2.1L M42, I can tell you that you are going to like running that M47 crank!

Thanks! The only thing left are the pistons. I have the S52b32 pistons, but I'm having a hard time finding someone to machine them to the specs I want. I may just get a set of pistons from MM, JE, ect....

[fresh_TD]

In case some of you were wondering how much I'm into this build so far. Here's the breakdown.

-Spare M42 engine - $200
-M42 head head work - $300
-All new timing components/gaskets,ect. - $735
-M47 crank - $750
-M47 crank modification - $200
-S52b32 pistons(6) $200
Total $2385 so far!