94 CR 250 Ground Up Restoration IMS Wide Ratio Transmission Issue
- Thread starter Moto7man
- Start date
I just saw that about the pictures. In the last few months photobucket has become progressively more coercive trying to squeeze money out of people. Does anybody have a recommendation for another site to host the photos?
Definitely maybe..lol. My last batch of Honda parts should be here on Friday. I got stuck because one of the powervalve shaft bushings that fits in the top of the case was damaged so I ordered a new one with some clutch components. Everything should go very fast now.
Hi Neil,
Yes, there was a typographical error in the IMS instructions. IMS sent me the corrected instructions and everything went together without a problem.
The new IMS instructions are on the right. Look at the two black marks and those gears were mislabeled on the original IMS instructions. I'll try to post a better picture later today.
Engine Assembly on the Beast.
Honda has specific depth specifications for the crank seals. On this side the seal must be 2mm below the crank case surface so a case splitting tool is used to set the seal depth, Per Dogger315.
This is the cases before the clutch install with the spacer and bearing installed.
New recluse clutch basket.
New washer for the retaining nut.
Honda has specific depth specifications for the crank seals. On this side the seal must be 2mm below the crank case surface so a case splitting tool is used to set the seal depth, Per Dogger315.
This is the cases before the clutch install with the spacer and bearing installed.
New recluse clutch basket.
New washer for the retaining nut.
Boyesen Super Cooler
Right side case cover and Super Cooler assembly and Boyesen impeller installed. The impeller screwed onto the Honda pump assembly but be careful, the nut cast into the impeller is a std size and not metric, don't ask me why?
Super cooler mounted up. The cooler comes with its own gasket, so the two Honda gaskets with the metal separator plate are not used. Also, the kit comes with a black rubber cover and hose clamp that shut off the stock Honda return line.
Right side case cover and Super Cooler assembly and Boyesen impeller installed. The impeller screwed onto the Honda pump assembly but be careful, the nut cast into the impeller is a std size and not metric, don't ask me why?
Super cooler mounted up. The cooler comes with its own gasket, so the two Honda gaskets with the metal separator plate are not used. Also, the kit comes with a black rubber cover and hose clamp that shut off the stock Honda return line.
Power Valve Pinion Cavity Probe to Air Leaks?
I am getting ready to install the top end tomorrow. In the photo above you can see the lower power valve shaft in the corner of the case surrounded by a cavity. I have installed new bushings on each of the pinion shafts for the power valve actuation mechanism. I have read that there can be a air leak through the power valve pinion cavity unless the cavity is packed with moly 60. Is this correct?
Here is a photo from another site with the proposed fix.
I am getting ready to install the top end tomorrow. In the photo above you can see the lower power valve shaft in the corner of the case surrounded by a cavity. I have installed new bushings on each of the pinion shafts for the power valve actuation mechanism. I have read that there can be a air leak through the power valve pinion cavity unless the cavity is packed with moly 60. Is this correct?
Here is a photo from another site with the proposed fix.
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CR 250 Wide Ratio
Ok, I got a lot done this weekend. This is where I started on Friday night.
I used an 18mm Bux Tool to install the circlips in the Wossner B piston. Its takes about 45 seconds per side, this tool is awesome!
The barrel went on without any problems, I set the ring end gap at .4mm.
Per Dogger, I preloaded power valve at .5mm.
I installed a new Honda oem head. I did not have it milled yet because I wanted to see how it runs in the stock configuration.
Ok, I got a lot done this weekend. This is where I started on Friday night.
I used an 18mm Bux Tool to install the circlips in the Wossner B piston. Its takes about 45 seconds per side, this tool is awesome!
The barrel went on without any problems, I set the ring end gap at .4mm.
Per Dogger, I preloaded power valve at .5mm.
I installed a new Honda oem head. I did not have it milled yet because I wanted to see how it runs in the stock configuration.
