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Author Topic: Riddle me this,  (Read 1052 times)

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Offline Don R

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Riddle me this,
« on: November 26, 2022, 01:46:30 PM »
 What is the last CB750 bolt I would have expected to find broken off in its hole? Too easy hint, it only exists to fill a hole and hold a washer in place.   
  And yes, it happened.
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No matter how many times you paint over a shadow, it's still there.
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 You don't need a weatherman to know which way the wind blows.

Offline Don R

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Re: Riddle me this,
« Reply #1 on: November 26, 2022, 02:30:36 PM »
 Bill Benton guessed it on FB. 
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No matter how many times you paint over a shadow, it's still there.
 CEO at the no kill motorcycle shop.
 You don't need a weatherman to know which way the wind blows.

Offline BenelliSEI

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Re: Riddle me this,
« Reply #2 on: November 26, 2022, 03:17:23 PM »
Sprocket retainer?
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Offline bryanj

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Re: Riddle me this,
« Reply #3 on: November 26, 2022, 04:09:33 PM »
Dont do faceache so whats the answer please
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Semi Geriatric ex-Honda mechanic and MOT tester (UK version of annual inspection). Garage full of "projects" mostly 500/4 from pre 73 (no road tax in UK).

Remember "Its always in the last place you look" COURSE IT IS YOU STOP LOOKIN THEN!

Offline Don R

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Re: Riddle me this,
« Reply #4 on: November 26, 2022, 04:23:46 PM »
 Nope, fork drain. I tried to screw in a plug (bolt) and there was no hole past the first thread.  I poked at it and realized it was solid. I drilled it for an easy out and the right-hand drill screwed it in. Santa needs to bring me some left-hand drills and some new screw removers. It eventually came out.
 
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No matter how many times you paint over a shadow, it's still there.
 CEO at the no kill motorcycle shop.
 You don't need a weatherman to know which way the wind blows.

Offline Deltarider

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Re: Riddle me this,
« Reply #5 on: November 27, 2022, 01:29:48 AM »
Somebody must have used a torque wrench where he shouldn't...
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Offline Don R

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Re: Riddle me this,
« Reply #6 on: November 28, 2022, 12:44:27 AM »
 True, you should see the diecast head I have. The fool drilled the cam towers for 5/16". I found thread inserts that are 10mm od and 6mmx1 ID. 
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No matter how many times you paint over a shadow, it's still there.
 CEO at the no kill motorcycle shop.
 You don't need a weatherman to know which way the wind blows.

Offline MauiK3

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Re: Riddle me this,
« Reply #7 on: November 28, 2022, 06:42:52 AM »
Such a violation!!
Too bad these things happen
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1973 CB 750 K3
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Offline Don R

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Re: Riddle me this,
« Reply #8 on: November 28, 2022, 07:43:56 AM »
Quote from: MauiK3 on November 28, 2022, 06:42:52 AM
Such a violation!!
Too bad these things happen
True. If it was any old head, I'd set it aside but it doesn't have the front center bolt and is matched with its original cylinder so that makes it pre-23,000? A perfect match for a sandcast motor hiding in a no number die cast replacement case.
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No matter how many times you paint over a shadow, it's still there.
 CEO at the no kill motorcycle shop.
 You don't need a weatherman to know which way the wind blows.

Offline bryanj

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Re: Riddle me this,
« Reply #9 on: November 28, 2022, 12:52:21 PM »
We used to fit "Keenserts"back in the 70's, they were 10mm od(but an odd pitch) and 6mm I'd. You would never pull them out but needed seal to stop an oil leak
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Semi Geriatric ex-Honda mechanic and MOT tester (UK version of annual inspection). Garage full of "projects" mostly 500/4 from pre 73 (no road tax in UK).

Remember "Its always in the last place you look" COURSE IT IS YOU STOP LOOKIN THEN!

Offline emlupi

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Re: Riddle me this,
« Reply #10 on: November 29, 2022, 01:23:14 PM »
I had the exact same thing happen to me several years ago with my K2. When I started to remove the fork drain bolt it felt like it was stripped in the hole. As I turned it carefully to remove it the bolt head came off. Luckily, a left hand drill bit spun the stud out and once replaced all is well. I was having visions of having to drill and tap this drain bolt but fortunately it didn’t come to that.
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