Locating pin trouble

  • Vietvet
  • Vietvet's Avatar Topic Author
  • Offline
  • User
  • Posts: 20
  • Thanks: 1

Locating pin trouble

22 Oct 2024 14:26
#905346
When I split the crankcases and removed the input and output shafts this is what I found. One locating pin sitting proud like it should be and the other has been pushed down flush with the mating surface. It is a solid pin which sits very tight. I thought a very strong rare earth magnet might lift it but to no avail. I heated the area and tapped with a hammer but still no go. It has had a good soaking overnight with RP7 but still no good. Drilling it looks like a hard job. Any ideas. 
Tantanoola South Australia.
1979 KZ 650

Please Log in or Create an account to join the conversation.

  • SWest
  • SWest's Avatar
  • Offline
  • Sustaining Member
  • 10 22 2014
  • Posts: 23197
  • Thanks: 2815

Re: Locating pin trouble

22 Oct 2024 14:31
#905347
Is the case broken on the other side?

Please Log in or Create an account to join the conversation.

  • Warren3200gt
  • Warren3200gt's Avatar
  • Offline
  • User
  • Posts: 1516
  • Thanks: 721

Re: Locating pin trouble

22 Oct 2024 15:20 - 23 Oct 2024 13:18
#905349
If you can't get to it from behind then drill it with a small size bit, tap a thread in it, screw in a bolt with a washer and nut tighten to the head to give you something to grip and pull it carefully out. 
You will be able to reuse it with a threaded hole down the center. 

Z1000J2 somewhat modified!

Last edit: 23 Oct 2024 13:18 by Warren3200gt.

Please Log in or Create an account to join the conversation.

  • Vietvet
  • Vietvet's Avatar Topic Author
  • Offline
  • User
  • Posts: 20
  • Thanks: 1

Re: Locating pin trouble

22 Oct 2024 16:11
#905350
The case is not broken on the other side, I was thinking at one stage I could drill a hole on the other side to see if I could leverage it up. I will consider drilling a hole in it and maybe using an easy out but it looks like really hard steel and it is only 6 mm diameter. Might have to take it to an engineering shop and let them have a go at it.
Tantanoola South Australia.
1979 KZ 650

Please Log in or Create an account to join the conversation.

  • TexasKZ
  • TexasKZ's Avatar
  • Offline
  • Platinum Member
  • Posts: 7686
  • Thanks: 2320

Re: Locating pin trouble

22 Oct 2024 17:58 - 22 Oct 2024 18:04
#905353
You could also check for a local shop with an EDM machine.

You could also buy one, learn how to use it, and we could all send our broken bits to you.......

portableedm.com
1982 KZ1000 LTD parts donor
1981 KZ1000 LTD awaiting resurrection
2000 ZRX1100 not ridden enough

www.kzrider.com/11-projects/620336-anoth...uild-thread?start=24
Last edit: 22 Oct 2024 18:04 by TexasKZ.
The following user(s) said Thank You: Wookie58

Please Log in or Create an account to join the conversation.

  • Injected
  • Injected's Avatar
  • Offline
  • User
  • Posts: 1142
  • Thanks: 626

Re: Locating pin trouble

23 Oct 2024 05:43 - 23 Oct 2024 05:45
#905368
It is important to get that fixed.

I would try to pry it up using a small sharp wood chisel against some thin scrap wood.

Your going to have to hammer into it then try to smooth out the gouge so it slips into the locating hole.
You just need enough length to locate the end cap as there is a small oiling hole in it that feeds the trans bearings (orifice #14)


 
1978 KZ650B2 w 1197cc Z1 engine
1977 KZ650B1 w 750cc Spectre engine
1979 KZ650C3 w 831cc Hot Rod engine
1978 KZ650C2 w 762cc DFI project
1977 KZ650C1 stock restoration project
1978 KZ650B2 modified project
1978 KZ650B2 Injected Drag 831cc
1980 Z1 Custom Frame Drag 1327cc
1981 Z50R Honda tow bike
Last edit: 23 Oct 2024 05:45 by Injected. Reason: info
The following user(s) said Thank You: sf4t7, SWest

Please Log in or Create an account to join the conversation.

  • SWest
  • SWest's Avatar
  • Offline
  • Sustaining Member
  • 10 22 2014
  • Posts: 23197
  • Thanks: 2815

Re: Locating pin trouble

23 Oct 2024 07:52
#905375
Is that a 750 twin? Looks like it due to the counter balance bosses.
I had a broken crank journal because of the wreck in 86. It was a big chip that I had to have welded. Couldn't remember if the pin was straight through or if it had a flange to hold it in. I went back on my 750 crank thread to see if I had any pics there but nothing but dead videos. After reading the text I remembered I had to drill out the hole to make it round again. I thought I'd have to use a pin from a 630 chain but the pin fit good enough to hold the bearing in place. In your case I wonder if the pin was pushed into a oil galley to make it that low. Could be a flaw in the casting but in any event I'd check to make sure. The pin needs to be there even if you have to fill it to make it stand out.
Steve 
kzrider.com/forum/13-bike-related/597654...kaw?start=336#757073
The following user(s) said Thank You: Vietvet

Please Log in or Create an account to join the conversation.

  • Scirocco
  • Scirocco's Avatar
  • Offline
  • Premium Member
  • Never change a running system
  • Posts: 4254
  • Thanks: 2113

Re: Locating pin trouble

23 Oct 2024 12:51 - 23 Oct 2024 12:54
#905383
You can try a spot welder hook and pull hammer any good car body shop should have to remove dents.
It´s less invasiv in my opinion and a lot of heat to the case is your friend during the task....
Last edit: 23 Oct 2024 12:54 by Scirocco.
The following user(s) said Thank You: Vietvet

Please Log in or Create an account to join the conversation.

  • Injected
  • Injected's Avatar
  • Offline
  • User
  • Posts: 1142
  • Thanks: 626

Re: Locating pin trouble

24 Oct 2024 12:58 - 24 Oct 2024 12:59
#905410
It may be easier to drill a new second hole in the end cap and drill a new dowel hole on the case. Even a 3/32" split pin would be good enough to locate it in the correct spot.
1978 KZ650B2 w 1197cc Z1 engine
1977 KZ650B1 w 750cc Spectre engine
1979 KZ650C3 w 831cc Hot Rod engine
1978 KZ650C2 w 762cc DFI project
1977 KZ650C1 stock restoration project
1978 KZ650B2 modified project
1978 KZ650B2 Injected Drag 831cc
1980 Z1 Custom Frame Drag 1327cc
1981 Z50R Honda tow bike
Last edit: 24 Oct 2024 12:59 by Injected. Reason: sp

Please Log in or Create an account to join the conversation.

  • SWest
  • SWest's Avatar
  • Offline
  • Sustaining Member
  • 10 22 2014
  • Posts: 23197
  • Thanks: 2815

Re: Locating pin trouble

24 Oct 2024 14:21
#905412
There is a very small oil supply hole in the oil galley spot. Any shift in placement of the race will starve it for oil. 

Please Log in or Create an account to join the conversation.

  • Injected
  • Injected's Avatar
  • Offline
  • User
  • Posts: 1142
  • Thanks: 626

Re: Locating pin trouble

24 Oct 2024 15:19 - 24 Oct 2024 15:25
#905414
There is a very small oil supply hole in the oil galley spot. Any shift in placement of the race will starve it for oil. 


 
Yes, new hole and dowel to the outboard edge on the same center as the flush pin. From the outer edge of case to the OD of flush pin its .348" so plenty of room to do such a thing (have bare 650 cases here)

This would be a last ditch effort after trying to pry it or the weld and pull (I don't own a welder)
1978 KZ650B2 w 1197cc Z1 engine
1977 KZ650B1 w 750cc Spectre engine
1979 KZ650C3 w 831cc Hot Rod engine
1978 KZ650C2 w 762cc DFI project
1977 KZ650C1 stock restoration project
1978 KZ650B2 modified project
1978 KZ650B2 Injected Drag 831cc
1980 Z1 Custom Frame Drag 1327cc
1981 Z50R Honda tow bike
Last edit: 24 Oct 2024 15:25 by Injected. Reason: info

Please Log in or Create an account to join the conversation.

  • Vietvet
  • Vietvet's Avatar Topic Author
  • Offline
  • User
  • Posts: 20
  • Thanks: 1

Re: Locating pin trouble

25 Oct 2024 19:11
#905457
Thanks for all of the suggestions, I ended up taking it to the bloke that does the vapour blasting in Mt. Gambier he has worked on many z900 since the early 1970's and he had done that particular repair job. He drilled a hole beneath the pin from the rear and tapped the pin back into position then filled the hole of a hard setting liquid metal. Not sure of what it is called but it is very solid, took him 20 minutes to do the job. He is a wealth of knowledge on all things old KZ and Z model Kawasakis  
Tantanoola South Australia.
1979 KZ 650
The following user(s) said Thank You: Injected

Please Log in or Create an account to join the conversation.

Powered by Kunena Forum