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Author Topic: Name those parts  (Read 8428 times)

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upperlake04

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Name those parts
« on: September 07, 2006, 07:51:30 AM »
In spite of my best efforts labelling, categorizing, and keeping notes, when all the cans and trays are empty and the bike now back together, there are two pieces left over >:( 
 
  spring -36mm (1 15/16") long x 18.5mm (9/16") dia. - not from accelerator pump
  washer - 17mm (5/8") osd - peculiar 3 lobes on inside diameter, slightly dished

If anyone can identify these parts, I would be eternally grateful and will publicly sing praises to your superior knowledge and helpfulness ;D

 1978 750F3

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eldar

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Re: Name those parts
« Reply #1 on: September 07, 2006, 07:53:08 AM »
Well it is hard to say just from pic. There is always a diff between a pic and real life.

the spring however looks liek the spring from the cam chain tensioner. and that washer could be from there too.
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upperlake04

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Re: Name those parts
« Reply #2 on: September 07, 2006, 07:58:01 AM »
quick on the keyboard Eldar,  thanks  - not from the tensioner, that one is larger and is in the tensioner now - I will check if the washer is from there.   I should add that the lower case/ transmission was not taken apart but top end and everything else on the bike was. 

 Just checked the fiche - can't find a washer in the camchain assembly anywhere
« Last Edit: September 07, 2006, 08:05:06 AM by upperlake04 »
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eldar

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Re: Name those parts
« Reply #3 on: September 07, 2006, 08:10:16 AM »
Boy I dont know. Certainly looks like the tensioner one. CAnt think of any other lightweight spring like that on the top end. Nothing for the carbs anyways. Wel if nothing else, it is a bit of weight loss and you probably don need those parts anyways! ;D
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upperlake04

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Re: Name those parts
« Reply #4 on: September 07, 2006, 08:24:48 AM »
 ;D ;D      now that I think about it, it is possible that the spring surrounded one of the machine screws that adjust the tilt on the headlight. Bike came with a non-stock pot. Thats a good possibility.
  You might very well be correct in suggesting that it doesn't belong on this bike Eldar, but I will wait before I congratulate you on your knowledge ;D
« Last Edit: September 07, 2006, 08:48:53 AM by upperlake04 »
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Offline scondon

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Re: Name those parts
« Reply #5 on: September 07, 2006, 10:15:02 AM »
I don't recognize the spring as being from any external part of the F3. Certainly not from the engine(top end). It's been a while since my last teardown so the memory is hazy. I do love a good F3 puzzle and will look my bike over this evening :)

    Could the washer be one of the crush washers that fit on either side of the banjo fittings of each brake line? There should be 16 total by my count.
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upperlake04

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Re: Name those parts
« Reply #6 on: September 07, 2006, 10:43:18 AM »
Scondon - you got me pumped on the banjo crush washer suggestion - but just checked and no :'( those washers measured out thicker and a smaller dia at 14.25mm dia  -   close but thats not it. Thanks :)
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Offline Steve F

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Re: Name those parts
« Reply #7 on: September 07, 2006, 12:55:48 PM »
To me, the washer looks like it's from a spark plug ???
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Offline kghost

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Re: Name those parts
« Reply #8 on: September 07, 2006, 01:01:39 PM »
Hard to tell......

Is it a spring left over from a master cylinder rebuild?
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Offline Sam Green Racing

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Re: Name those parts
« Reply #9 on: September 07, 2006, 01:16:12 PM »
Hey Dave, it's a buger when you have bits left over :-[
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Offline Jonesy

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Re: Name those parts
« Reply #10 on: September 07, 2006, 01:19:55 PM »
Quote from: kghost on September 07, 2006, 01:01:39 PM
Hard to tell......

Is it a spring left over from a master cylinder rebuild?


I thought those springs were a bit conical in shape... ???

I concur the washer looks like one off a sparkplug.
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Offline jtb

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Re: Name those parts
« Reply #11 on: September 07, 2006, 01:54:39 PM »
Upperlake,  I just finished the top end of my F2 750 engine, don't recall either of those. ???

JTB
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upperlake04

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Re: Name those parts
« Reply #12 on: September 07, 2006, 02:05:24 PM »
:-[ :-[ :-[  sez to self   'Alf - you're a blithering idiot"  ::)    STEVE - you are correct - of course it from the old set of plugs, how can one guy be so dense :-[    Thankyou!

  ANNOUNCEMENT     Let it be known to all in this SOHC/4 site that honorable member  STEVE F , has solved newbie upperlake04s  dilemma, and in doing so has demonstrated his superior knowledge in these matters. He has also shown other fine qualities that are to be appreciated in an open forum - helpfulness and tact.  He is to be heartily congratulated and should be held up as a shining example. Take a bow, Sir
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upperlake04

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Re: Name those parts
« Reply #13 on: September 07, 2006, 02:25:15 PM »
Very nice to have the washer problem solved.  ;D
 The spring - yes both the front and rear master cylinders were rebuilt, used the old springs there, and yes Jonesy, as I recall,  both were conical, the small end sized for the rubber cap. So not from there either. 
 Jtb - the top end went together last weekend, there aren't very many parts in there, and I'm positive, as in yours, that no little spring fits in there. Maybe later K valve springs look like that, I don't know ;D
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Offline mrbreeze

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Re: Name those parts
« Reply #14 on: September 07, 2006, 02:29:01 PM »
That was my first guess on the washer...spark plug. Can't place the spring though. Good luck!!
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Offline Jerry Rxman Griffin aka MuthaF'er

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Re: Name those parts
« Reply #15 on: September 07, 2006, 02:49:30 PM »
Well I know it's not a spark plug spring. Hard to tell from the pix. Could it be large enough for the oil filter?
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Offline Jonesy

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Re: Name those parts
« Reply #16 on: September 07, 2006, 03:08:25 PM »
Quote from: RxmanGriff on September 07, 2006, 02:49:30 PM
Could it be large enough for the oil filter?

No, too many coils in length and not large enough diameter...
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upperlake04

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Re: Name those parts
« Reply #17 on: September 07, 2006, 03:14:16 PM »
Rxman -just checked the oil filter spring ( which is there)  - nope, it is short and fat, about an inch in dia, and not much longer, thanks anyway.  And Mrbreeze, you and Jonesy will have to talk to SteveF about sharing first prize, second and thirds aren't quite as good though ;D
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Offline puppytrax

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Re: Name those parts
« Reply #18 on: September 07, 2006, 03:26:12 PM »
My CB500 has a spring about that size on the bottom of the throttle, some kind of friction thingy I think, does the 750 have one of those too??
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gratznic

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Re: Name those parts
« Reply #19 on: September 07, 2006, 03:47:40 PM »
Looks kinda like a spring from the oil filter housing. But I haven't looked at that lately, so I could be way off.
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upperlake04

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Re: Name those parts
« Reply #20 on: September 07, 2006, 04:51:35 PM »
PTrax - looked at the parts fiche for 73 500K2 to see what piece you mentioned.  Looks reasonable, but the 78750F model didnt get the throttle tensioner. On the underside of the throttle side housing there are only the two 90 degree chromed noodles that direct the push-pull throttle cables. thanx anyway :)

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Offline Jonesy

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Re: Name those parts
« Reply #21 on: September 07, 2006, 05:09:39 PM »
I'm wracking my brain trying to think of all the places compression springs are used on these bikes:

(Feel free to add more if you think of them)
-Throttle grip friction adjuster (dropped after '75)
-Starter and horn buttons
-Headlight aim adjustment screw
-Master cylinder
-Turn signal bulb bases
-Seat latch post
-Tail light bulb base
-Brake rod adjustment mechanism
-Front brake arm adjuster
-Outer valve springs
-Inner valve springs
-Air screws on the carbs
-Carb slides (On K0 cable carbs only)
-Shift selector arm
-Cam chain tensioner
-Oil pump relief valve
-Oil pump anti-drainback valve
-Fork lock (earlier bikes where it was mounted separately from the key switch)
-Oil filter
-Neutral switch
-Starter clutch
-Accelerator pump (later carbs)
-Primary fork springs
-Secondary fork springs
-Rear shocks
-Idiot light and gauge light bulb bases
-Clutch assembly
-Idle speed adjuster screw

My guesses based on this list are the front brake adjuster spring or the shift selector spring...
« Last Edit: September 07, 2006, 06:28:32 PM by Jonesy »
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upperlake04

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Re: Name those parts
« Reply #22 on: September 07, 2006, 05:16:55 PM »
Wow Jonesy!!  thats way beyond the call [no appropriate smiley available] - many thanks ;D   I was starting to think that the spring didn't really belong on this bike and I would ignore it but now I will go through your list carefully before that.    Awesome ;D ;D
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Offline scondon

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Re: Name those parts
« Reply #23 on: September 07, 2006, 06:01:25 PM »
  That washer was bugging me all day at work. I kneewww I had seen it just recently, spark plug indeed :D :D :D

  Now I'm home and that pesky spring is haunting me ??? ??? ??? :D :D My bet was with Jonesy and the shift selector spring which I just measured at 36mm long but only 10mm wide. Idle adjuster screw? No, too big. Aaaggghhh.. upperlake, what have you done :D
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Offline Jonesy

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Re: Name those parts
« Reply #24 on: September 07, 2006, 06:28:01 PM »
Ooooohhh- Idle adjuster screw! (I added it to the list)
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