MC21 Engine case wanted.

**Mon Sep 24, 2012 11:45 pm » Post: #1 » Download Post**

After an engine case for an MC21/28 engine. Need the left hand side.

Anyone?

Also after an HRC jet kit or similar, HRC style airbox, or other similar performance/lightweight parts.

**Tue Sep 25, 2012 2:27 am » Post: #2 » Download Post**

crank case splits top/bottom, so I guess you mean the cover for the sprocket and flywheel?

**Tue Sep 25, 2012 2:41 am » Post: #3 » Download Post**

nxrsr20 wrote:crank case splits top/bottom, so I guess you mean the cover for the sprocket and flywheel?

Sorry, valid point. I wasn't thinking. The case around the thread for the torque arm has cracked. Not in front of the bike at the moment and can't remember if it was top or bottom.

**Tue Sep 25, 2012 4:27 am » Post: #4 » Download Post**

http://workshop.nsr-world.com/

lower crankcase from the looks of it. I've got one if you want to consider the cost of shipping from the other side of the ditch.

**Tue Sep 25, 2012 4:48 am » Post: #5 » Download Post**

nxrsr20 wrote:http://workshop.nsr-world.com/

lower crankcase from the looks of it. I've got one if you want to consider the cost of shipping from the other side of the ditch.

Pretty heavy things aren't they. What would you be wanting for it?

**Tue Sep 25, 2012 10:09 am » Post: #6 » Download Post**

I need to get in the shed to find a few thongs, so I'll take some photos, if you're happy we'll work out an agreement.

Out of interest, what do you need it for?

**Tue Sep 25, 2012 11:31 am » Post: #7 » Download Post**

nxrsr20 wrote:I need to get in the shed to find a few thongs, so I'll take some photos, if you're happy we'll work out an agreement.

Out of interest, what do you need it for?

No probs, let me know. Oh the case is cracked in the area where the torque arm bolts in. It means the bolt has play and the box is super clunky changing down gears. I have another but it's on a complete engine. Seems silly to break it into parts...

**Tue Sep 25, 2012 1:54 pm » Post: #8 » Download Post**

Crankcase halves are matched, so should only be used as a pair, unless you have them remachined/line-bored before assembly.
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**Thu Sep 27, 2012 1:50 am » Post: #9 » Download Post**

That was the reason why I was going to supply a full set of cases. They are set up for premix, does that matter?

**Thu Sep 27, 2012 2:06 am » Post: #10 » Download Post**

nxrsr20 wrote:That was the reason why I was going to supply a full set of cases. They are set up for premix, does that matter?

Possibly not as I was going to go that way maybe. What has been tweaked to suit premix?

**Thu Sep 27, 2012 6:53 am » Post: #11 » Download Post**

They have the tugs pump block off piece. Haven't bothered seeing if it will pop out.

**Sat Sep 29, 2012 2:26 am » Post: #12 » Download Post**

Man my phone has done many strange autocorrections in this thread. I've only got the top half floating around. I do have a spare engine but not ready to consider selling that yet.

Sorry I can't help.

**Sat Sep 29, 2012 5:22 am » Post: #13 » Download Post**

nxrsr20 wrote:Man my phone has done many strange autocorrections in this thread. I've only got the top half floating around. I do have a spare engine but not ready to consider selling that yet.

Sorry I can't help.

That's ok mate, I'll see how I go locally. Another engine would be nice though! Thanks though.

**Sat Sep 29, 2012 7:22 am » Post: #14 » Download Post**

Can this not be specialist repaired Question

**Sat Sep 29, 2012 8:59 am » Post: #15 » Download Post**

I will check, I may have one. Do have two 18 cases