1973 400 CR

Drawings would be GREAT!! ddamelio@sbcglobal.net

Not to take the wind out of anyone's sails - have a bit of 'social distancing' time so a quick drawing for air bell brackets for a MK framed 400 below. Dimensions are approximate taking in account 47 years of vibration and rebuilding. Replacements out of 1/8" x 3/4" aluminum are quick to make and are lighter as a bonus.

Very nice! Thanks so much. Great reference for all. Now, another guy is sending a set of 3 from his 400 Cross, so a few years earlier. His have only 2 lengths. Is that one set for the early, and one set for an MK?

The 70 - 71 400s have one long and 2 the same length. The 73 400 has 3 different lengths. It also varies per displacement and year - 250, 360, 400 or 450. For such simple parts there are quite a few combinations.

You know I just have to ask... what happened to 1972?

So, I've now got 73 drawings, and a set of 70-71 coming in the mail for copying. If anybody wants a set let me know and I'll get a price. Current plan is 1/8" aluminum.

Sorry I’ve only just found this thread. Going back to your chain clearance problems - would using a non o-ring chain give you a few mm extra clearance?

Yes,I can speak from experience,O-ring chains are wider, at least on my 1975 CR, it JUST clears barely, actually too close

Thank You. Yes, I tried a standard chain, but it was not enough. I went ahead and re-built the lower shock mounts, moving the bottom eyelets outward a touch. I need to catch up on the updates! Have had it running and it's a beast.

Hi, I'm new here. I was excited to find recent conversation about the air bell mounts, since my 1974 250WR is missing both left-side parts, but now I see there are a bunch of possibilities, so I'll probably have to make them.

-Aaron

I have received the first set in aluminum. They are very nice. I'll get some pics up soon.

I took some measurements, and my brother, who has access to a machine shop, made me a set in stainless steel. I'll post pics with them installed ASAP. Fingers crossed I got the measurements close enough.