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21
Misc / Open / Re: What happens if an exhaust mounting stud snaps off?
« Last post by Spitfire on Today at 01:40:46 PM »
I came across this when I was stripping down the F1 to start the rebuild, at first there was a broken stub visible about 1 inch, so I tried heat, penetrating oil, freezing stuff all to no avail.
I then used a roller type extracter which broke the stud revealing that nothing at all had penetrated
So it was head off and away to a machine shop, this did not bother me too much as I then could check the top end as the bike had been in storage for 10 years, I did find a stuck piston ring so it was worth it.


Cheers

Dennis
22
SOHC Singles & Twins / Re: CB360 Wiring question
« Last post by Craizeehair on Today at 01:07:42 PM »
Quote from: Bryanj on Today at 12:45:53 PM
Nope, thats what they should have in them unless you have fitted UK blinker heads
Gotcha, thanks.
23
Out & About / Re: OUT AND ABOUT 2024
« Last post by Spitfire on Today at 01:02:57 PM »
Thank you guys, I'm off to the hospital this afternoon for the first check up after the op, but it seems to be working well.

Cheers

Dennis
24
SOHC Singles & Twins / Re: CB360 Wiring question
« Last post by Bryanj on Today at 12:45:53 PM »
Nope, thats what they should have in them unless you have fitted UK blinker heads
25
Misc / Open / Re: What happens if an exhaust mounting stud snaps off?
« Last post by McCabe-Thiele (Ted) on Today at 12:16:37 PM »
Quote from: Athame57 on Today at 10:48:17 AM
I took my bike in today to have the oil pump seals changed and get a set of genuine Honda exhaust mounting studs fitted to replace the rust prone homemade junk currently in place.
The mechanic had to tell me he would only try so hard if any are very stubborn, lest they snap off. If that happened where would I stand though?

A local engineering firm Helicoiled four of my head studs on the 500  I snapped three , removed four, left one for them - one is fractionally out of alignment so the new Delkevic clamps would not fit one pair of studs.

I used my originals that have more clearance. They skimmed my head as well - they did a brilliant job removing only a few thou to get rid of a couple of marks near where the head gasket seals the bores leaving a mirror type finish. It cost more than I expected tbh.
26
Misc / Open / Re: What happens if an exhaust mounting stud snaps off?
« Last post by K2-K6 on Today at 11:57:29 AM »
If they've informed you of the risks, then rectification would in all logic be at your cost, should they snap any.

Fixing it ... down to competency within that business as to how they approach this.

Most assured outcome would likey involve the head off and to a machine shop to mount on a milling machine, then to machine the broken part out   ( especially if stuck with nothing protruding) to not balls up the head casting.

A friend, when these were contemporary engines, ran a jig on milling machine to do this and to machine the spark plug holes, especially two centre one's, in repairing them. All his customers were bike shops that farmed this out to him.

Difficult decision to go ahead or not, they can easily go wrong and they are right to warn you of this.

May be lucky if they've originally been put in with coppaslip or similar. 
27
Out & About / Re: OUT AND ABOUT 2024
« Last post by Johnwebley on Today at 11:56:59 AM »
Quote from: Spitfire on Today at 10:50:02 AM
Nice one, dead jealous but hopefully on the way back to getting out on the bike, left thumb joint replace, now some rehab and then the throttle hand later in the year.


Cheers

Dennis
Best wishes for a speedy recovery,

Next week, we are (invading) the tourist centre

Bourton on the water

If the weather is good, about 500 bikes should attend

Sent from my SM-A546E using Tapatalk

28
Out & About / Re: OUT AND ABOUT 2024
« Last post by McCabe-Thiele (Ted) on Today at 11:18:16 AM »
Quote from: Spitfire on Today at 10:50:02 AM
Nice one, dead jealous but hopefully on the way back to getting out on the bike, left thumb joint replace, now some rehab and then the throttle hand later in the year.


Cheers

Dennis

Yikes Dennis - hope the operation is a 100% success.
29
Out & About / Re: OUT AND ABOUT 2024
« Last post by McCabe-Thiele (Ted) on Today at 11:10:30 AM »
Great photos John - aside from Matlock on a Sunday there are no local biker meet pubs that I know of - decades ago there was a pub out near Longford I think it was The Ostrich - now a Private House.

I last visited the pub about four years ago - the pub seemed to be popular with overseas bikers that day.
Photo is from FB page.
34411875_1100887800050278_1180177538865954816_n by Macabe Thiele, on Flickr


.302075177_602697738214243_9075220423072539649_n by Macabe Thiele, on Flickr
30
CB750 / Re: Wow this is the real deal 1968 prototype CB750
« Last post by AshimotoK0 on Today at 11:08:35 AM »
Quote from: K2-K6 on Today at 10:34:37 AM
Interestingly, the combined float bowls are seperate in function, having discreet volume for each carb, but seem to be used as mounting to give structural component (later a dedicated carb "rack") along with a beam across the top of carbs to make a competent assembly.

Placement of anything PRE marketplace is, as I understand it, subject to tax and import regulation for which a temporary waiver is given, after which the item (s) have to be either removed from the country, or destroyed for disposal (being cheaper) to ultimately comply with their temporary import.

Guessing that some of these vehicles escape by someone hiding them away as they think it's too much of a waste, on a personal level, to really scrap them. Interesting that some are kept, understandable that the stories are deliberately obscured. Technically the IRS could still come for the demands of import be met, although out of time status likely to apply now. In taxman terms, they'd probably want to see it crushed  :)

Sounds spot on to me Nigel. Vic World was at DS 750 event and was very approachable and a totally unassuming guy, when I talked to him.

BTW I think the CB750A Hondamatic SOHC 750 had a Morse Hy-Vo primary chain.
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