Author Topic: multi part oil ring  (Read 482 times)

Online bsa-bill

  • Wise & Enlightened
  • *
  • Join Date: Mar 2006
  • Posts: 5442
  • Karma: 62
multi part oil ring
« on: 04.07. 2017 14:29 »
Ok looks like maybe I'm about to be dragged into 2017 (with your help)
Need to sell my Flash to restore some dignity to our savings after changing our car last year, What with my knee operation it had sat in the shed for some time idle, so started to kick it over a month or so ago and noticed it was a tad smoky, probably to be expected, but thought I'd put a set of new rings in, turned out one oil control ring was broken.
So purchased a set of Hepolite rings from Classic bike shop, rings look fine and delivered in four days.
Here's the thing the oil control ring has two/three parts, the ring and a sort of beaded ring inside it,  I've not come on these before so would love some info on fitting them, the inner beaded ring has a wire running through it, do I have to cut this beaded ring and wire to size? or discard it

Could not get this post to post with pics attached (three jpgs all under max size) so will post in seperate post
All the best - Bill
1961 Flash - stock, reliable, steady, fantastic for shopping
1959 Rocket Gold Flash - blinged and tarted up  would have seizure if taken to  Tesco

Online Greybeard

  • Jack of all trades; master of none.
  • Wise & Enlightened
  • *
  • Join Date: Feb 2011
  • Posts: 6068
  • Karma: 35
Re: multi part oil ring
« Reply #1 on: 03.06. 2018 23:00 »
I've been looking at these rings today. I removed the springy device inside the oil ring to check the gap. I assume you put that back inside the ring before you fit it. What did you do?

Offline muskrat

  • Global Moderator
  • Wise & Enlightened
  • **
  • Join Date: Jul 2009
  • Posts: 8237
  • Karma: 106
  • Lake Conjola NSW Oz
    • Shoalhaven Classic Motorcycle Club Inc
Re: multi part oil ring
« Reply #2 on: 03.06. 2018 23:27 »
G'day Bill.
Yes as GB did. Usually there's a piece of wire at the spring joint, it goes opposite the ring gap.
Cheers
'51 A7 plunger, '57 A7SS now A10CR,  '83 CB1100F, 88 FXST .
Australia
Muskys Plunger A7

Online bsa-bill

  • Wise & Enlightened
  • *
  • Join Date: Mar 2006
  • Posts: 5442
  • Karma: 62
Re: multi part oil ring
« Reply #3 on: 04.06. 2018 09:39 »
Quote
What did you do?

Something pretty stupid - I'll fes up in the hope it prevents someone else doing the same.
First I assembled the ring and tried it in the cylinder, it did fit in ( just didn't seem possible the spring could compress enough to fit but it did)

So fitted the rings to pistons, fitted piston clamps and lowered the barrels onto pistons, all went well until they came to the oilrings, one side went down but the drive side just did not want to go, then "click", I knew exactly what had happened ( you've guessed ), but why.
Only thing to do was off with the barrels and replace the oil rings (standard ones this time), taking off the ring clamps revealed the reason, timing side clamp was correct, drive side I had put on upside down ( so a gap where there is a cut out at the bottom of the clamp) just enough to allow the ring to protrude a smigen - hell hath no fury as a man alone in a shed with no one to kick or blame

So double check clamps please
All the best - Bill
1961 Flash - stock, reliable, steady, fantastic for shopping
1959 Rocket Gold Flash - blinged and tarted up  would have seizure if taken to  Tesco

Online Greybeard

  • Jack of all trades; master of none.
  • Wise & Enlightened
  • *
  • Join Date: Feb 2011
  • Posts: 6068
  • Karma: 35
Re: multi part oil ring
« Reply #4 on: 04.06. 2018 09:50 »
Quote
What did you do?
"click", I knew exactly what had happened
Doh!

Offline muskrat

  • Global Moderator
  • Wise & Enlightened
  • **
  • Join Date: Jul 2009
  • Posts: 8237
  • Karma: 106
  • Lake Conjola NSW Oz
    • Shoalhaven Classic Motorcycle Club Inc
Re: multi part oil ring
« Reply #5 on: 04.06. 2018 10:19 »
Good one Bill, but your not alone.
 I hate those three piece rings with the two thin rails and a separator. They do work very well but give no click if it goes belly up on installation. In one of my race motors a rail was dislodged and bent down between the piston and bore. As I oil everything a bit of smoke on start up is normal but after a minute it didn't stop. Had to bore +30 to remove the score.
Cheers
'51 A7 plunger, '57 A7SS now A10CR,  '83 CB1100F, 88 FXST .
Australia
Muskys Plunger A7

Online Greybeard

  • Jack of all trades; master of none.
  • Wise & Enlightened
  • *
  • Join Date: Feb 2011
  • Posts: 6068
  • Karma: 35
Re: multi part oil ring
« Reply #6 on: 04.06. 2018 11:00 »
I hate those three piece rings with the two thin rails and a separator. They do work very well but give no click if it goes belly up on installation. In one of my race motors a rail was dislodged and bent down between the piston and bore. As I oil everything a bit of smoke on start up is normal but after a minute it didn't stop. Had to bore +30 to remove the score.
Cheers
*sad2*