CB400/4 Engine Bolts

[Laverda Dave]

The 'Rat Bike' project is moving along nicely and the engine cases are now empty and have had their first wash ready for a proper inspection.  The parts list is now at two pages though and is growing daily!

Various engine mounting bolts are missing (two front lowers and two at the top) and in one case a length of studding has been used as the upper rear engine mount, I do not know how the PO rode the bike with the engine moving around in the frame!

Does anyone have any of the following for sale (parts book listing used to describe the items):
92000-08080-0A - Bolt, Hex, 8x80 Upper front engine mounting bolts x 2
92000-10080-0A - Bolt, Hex, 10x80 Upper front engine mounting bolt x1
90106-333-000 - Bolt, FR, Engine Lower Hanger x 2 (These are the special bolts that pass through the lower frame rails at the front and bolt through to the lower crankcase of the engine and are frequently replaced by longer bolts that then cause the oil gallery to crack as they are too long! DSS or CMSNL don't have any).
90108-333-000 - Bolt, RR. Engine Upper Hanger x 1 (this is the long bolt used as the upper rear engine mounting, is passes through both sides of the frame and through the lug on the rear upper crankcase. On the R/H side it passes through the upper engine mounting plate that holds the main earth cable).

Thought I'd ask here first, condition is unimportant as I will be getting all the bolts etc replated.

Thanks
Dave

[Oddjob]

You sure you got your part numbers right Dave?

The 2 lower bolts are 10 x 74mm and should be 90101-377-000 if after 1046562

I'll have a look for the others

[Oddjob]

Got the 2 x 8 x 80mm bolts, also have the 2 x 10 x 74mm bolts. Also found a 10 x 80mm bolt.

Any idea of how long the upper rear bolt is?

[Laverda Dave]

Amazing Ken! I'll check the parts book tomorrow morning as out at a 60th birthday bash at the moment. I'll measure the upper rear bolt as well and get back to you👍

[Laverda Dave]

I bow to your knowledge Ken, I didn't read the parts list properly! It should be 90101-377-000. As a battery of interest do you know what the difference is between the two, was the later bolt shorter to avoid the potential of oil gallery damage?
The length of the rear top bolt is approx 213mm (from below the bolt head, I measured the original bolt on my other 400/4). It has a 14mm hex head.
Send me a PM with the cost and I'll sort out via PayPal (F&F) with the P&P.
Thanks again Ken.

[McCabe-Thiele (Ted)]

Iirc the longer bolts were used with engine crash bars.

[Laverda Dave]

Iirc the longer bolts were used with engine crash bars.

That's right Ted. My first 400/4 back in 1979 used to have crash bars fitted with longer bolts. I made the error of taking the crash bars off and just put the bolt straight back in with the inevitable result of a cracked crankcase.
I'm on my way over with the lower crankcase half now to the specialist welder to weld up the crack caused by the same issue. I thought it looked cracked when I gave it another good clean and when I met up with my mate on Tuesday who was the PO he confirmed the engine had an oil leak from what he thought was the filter housing area and was one of the reasons he stopped riding it. Funnily enough this is the area where I found the engine bolt to be missing.

[Oddjob]

I have a couple of very slightly shorter bolts at 10 x 72mm Dave, I'd be happy to send them as well and you could fit whatever you think looks the best when inserted.

I'll see what I have in the long bolt section, I may or may not have one suitable.

[Laverda Dave]

Thanks Ken👍

[Oddjob]

Ok, I've now got 2 x 10 x 72mm, 2 x 10 x 74mm, 1 x 10 x 80mm, 2 x 8 x 80mm bolts.

I didn't have a long bolt of 10 x 213mm but I do have a 10 x 270mm, it's possible to thread this down to 213mm and cut off the excess. Easy to do with a lathe or a really good tap and die set. Any use?

[Laverda Dave]

Thanks Ken.
I'll take all the shorter bolts please. CMSNL have the correct rear engine mount bolt for €14! I know there's P&P and the duty to pay on that but that's a pretty good deal considering their normal prices! I have to order a few parts that DSS don't appear to stock so I'll wait until I place that order and just add the bolt to it.
Let me know the cost of your parts and I'll sort the payment.
Thanks again for searching through your inventory of parts👍

[Oddjob]

No cost Dave, happy to help out.

I have your address.

[Laverda Dave]

Thanks Ken 👍.
I've made a site donation to help keep this great forum running.

[Laverdaroo]

Dave, just found a stash of bolts from the 400 build, is there anything you haven’t managed to get second hand yet in the engine bolt department?

Let me know if there’s ought you need and I’ll have a rummage with me ruler and see what I can ‘ferkle’ out of me stash


Sent from my iPhone using Tapatalk

[K2-K6]

"Ferkle--ing yer-stash" sounds like something what goes on over yon wez-c'ntry, after copious amount of  participation in scrumpy-zider season.

Or perhaps in "zumma-zet" too 

You be careful there that Roo with all that Ferkle-ing.