Author Topic: Plunger spring compressor  (Read 932 times)

Online WozzA

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Plunger spring compressor
« on: 05.06. 2016 16:40 »
Has anyone fabricated their own version of a plunger spring service tool?
'51 Golden Flash Plunger
'57 Golden Flash Swingarm

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Online Greybeard

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Re: Plunger spring compressor
« Reply #1 on: 05.06. 2016 19:27 »
Yes.

Offline cotterpinkid

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Re: Plunger spring compressor
« Reply #2 on: 05.06. 2016 20:12 »
Me to. It's been some years since I did. If I remember I used an all-thread arrangement with plates either end that could slide out once the units were between the frame castings. They'll still be down the shed in the 'BSA' toolbox.
A10 GF Plunger
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Re: Plunger spring compressor
« Reply #3 on: 05.06. 2016 20:33 »
I used an all-thread arrangement with plates either end that could slide out once the units were between the frame castings.
Yup, me too.

Offline Beezageezauk

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Re: Plunger spring compressor
« Reply #4 on: 05.06. 2016 20:45 »
Hear you go WozzA lad.  I knocked this up many years ago and it worked a treat. 





Beezageezauk

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Re: Plunger spring compressor
« Reply #5 on: 05.06. 2016 23:49 »
so...  the threaded rod does not go through the carrier column?

the idea is to compress the lot ( covers included ) outside the frame?,
put in place, then insert the carrier column through the frame, then slide out the tool sideways?..
Thanks for the reply's...   (even yours GB)  *roll*
'51 Golden Flash Plunger
'57 Golden Flash Swingarm

Melbourne
The biggest lie I tell myself is
"I don't need to write that down, I'll remember it"

Online Greybeard

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Re: Plunger spring compressor
« Reply #6 on: 06.06. 2016 09:16 »
so...  the threaded rod does not go through the carrier column?

the idea is to compress the lot ( covers included ) outside the frame?,
put in place, then insert the carrier column through the frame, then slide out the tool sideways?..
Thanks for the reply's...   (even yours GB)  *roll*
Apologies for my silly reply; I was short of time but intended to write a longer post.

My version goes through the steel column and Plunger slider. The assembly, complete with shields is compressed enough to get into the frame then the thread rod is removed. The plates, (that are roofing washers) had to be pulled out when the everything is in place. That was not ideal because it scratched the paint a little around the shield. I suggest devising a way of protecting that area if you copy my idea. To allow the nuts to be removed I made a spacer tube.

Online muskrat

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Re: Plunger spring compressor
« Reply #7 on: 06.06. 2016 10:39 »
I've only had mine in and out a few times in over 30 years. Didn't use any tool. Just assembled all the bits, rested the bottom cup on the frame and put all my weight (80Kg) on the top cup and slid it in. I imagine any compression tool that needs to be slid out will mark the cup.
Cheers

ps I missed the post today Woz. they'll be on their way tomorrow.
'51 A7 plunger, '57 A7SS now A10CR,  '83 CB1100F, 88 FXST .
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Muskys Plunger A7

Online WozzA

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Re: Plunger spring compressor
« Reply #8 on: 06.06. 2016 11:05 »
I knocked up a compression tool today much like Beezageeza's so all's good..   *work*
 *thanks* Musky...  I didn't expect you to make a special trip with all that rain your copping.. 
'51 Golden Flash Plunger
'57 Golden Flash Swingarm

Melbourne
The biggest lie I tell myself is
"I don't need to write that down, I'll remember it"

Offline duTch

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Re: Plunger spring compressor
« Reply #9 on: 06.06. 2016 11:20 »

 I used a 'tool' much like these, but can't really remember the full details, other than getting the booker-rod the right length and getting the kit to one end of the b-rod it was easy to do, but getting the b-rod out was a mission *dunno*

 fingers *whistle*
Started building in about 1977/8 a on average '52 A10 -built from bits 'n pieces never resto intended -maybe 'personalised'
Have a '74 850T Moto Guzzi since '92-best thing I ever bought doesn't need a kickstart 'cos it bump starts sooooooooo(mostly) easy
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'51 A7 plunger, '57 A7SS now A10CR,  '83 CB1100F, 88 FXST .
Australia
Muskys Plunger A7

Offline shabashow

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Re: Plunger spring compressor
« Reply #11 on: 06.06. 2016 13:21 »
I did a treaded one, as well and wrapped some plastic elecrical tape around the endplates to minimise any scratches. I think I got away without any scratches on my new (back then) paint job.

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Re: Plunger spring compressor
« Reply #12 on: 06.06. 2016 13:59 »
I've only had mine in and out a few times in over 30 years.

That's a flipping shame!

Online WozzA

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Re: Plunger spring compressor
« Reply #13 on: 12.06. 2016 09:32 »
Well MY spring compressor tool was a screaming FAILURE...   *work*
It slipped while I was screwing the nut down, The springs shot up @ a great rate of speed
& NEARLY  took my cods with them..   *eek*    *countdown*

So using Muskys method of brute force I managed to get them fitted...   *smile*
'51 Golden Flash Plunger
'57 Golden Flash Swingarm

Melbourne
The biggest lie I tell myself is
"I don't need to write that down, I'll remember it"

Offline duTch

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Re: Plunger spring compressor
« Reply #14 on: 12.06. 2016 11:58 »

 
Quote
& NEARLY  took my cods with them..   *eek*    *countdown*

 Sounds like premature adulation *smile* What you doin' with the cods in there? *dunno*

 That looks like a many toothed sprocket Wozz? 49 or so ?
Started building in about 1977/8 a on average '52 A10 -built from bits 'n pieces never resto intended -maybe 'personalised'
Have a '74 850T Moto Guzzi since '92-best thing I ever bought doesn't need a kickstart 'cos it bump starts sooooooooo(mostly) easy
Australia