Author Topic: Heating crankcases  (Read 1072 times)

Offline Russ

  • A's Good Friend
  • ***
  • Join Date: Aug 2009
  • Posts: 227
  • Karma: 1
Heating crankcases
« on: 03.06. 2010 03:59 »
Various posts on this forum have referred to using the wife's oven to heat crankcases for removing bushes.
How is this done?  IE, for how long and at what tempeture.
Russ
1951 A10 Plunger.
Australia

Online muskrat

  • Global Moderator
  • Wise & Enlightened
  • **
  • Join Date: Jul 2009
  • Posts: 8804
  • Karma: 113
  • Lithgow NSW Oz
    • Shoalhaven Classic Motorcycle Club Inc
Re: Heating crankcases
« Reply #1 on: 03.06. 2010 04:57 »
G'day Russ,
                   200C for30 minutes works for me. Use a bolt and washers through any that you don't want to replace to stop them falling out. When fitting new ones heat again to 200C and put bush in freezer for 30 minutes. It will fall in, just make sure oil holes line up.
 Just don't put it down on the bench top !! *eek*
Cheers
'51 A7 plunger, '57 A7SS now A10CR,  '83 CB1100F, 88 FXST .
Australia
Muskys Plunger A7

Online Brian

  • Wise & Enlightened
  • *
  • Join Date: May 2007
  • Posts: 1740
  • Karma: 41
  • Mt Gambier, South Australia.
Re: Heating crankcases
« Reply #2 on: 03.06. 2010 04:59 »
I would have thought the most important thing here is to make sure the wife doesnt come home before you have finished, its cold sleeping out in the shed at nights.  *smiley4*

Online muskrat

  • Global Moderator
  • Wise & Enlightened
  • **
  • Join Date: Jul 2009
  • Posts: 8804
  • Karma: 113
  • Lithgow NSW Oz
    • Shoalhaven Classic Motorcycle Club Inc
Re: Heating crankcases
« Reply #3 on: 03.06. 2010 06:23 »
Ha, but I do most of the cooking !
'51 A7 plunger, '57 A7SS now A10CR,  '83 CB1100F, 88 FXST .
Australia
Muskys Plunger A7

Offline Russ

  • A's Good Friend
  • ***
  • Join Date: Aug 2009
  • Posts: 227
  • Karma: 1
Re: Heating crankcases
« Reply #4 on: 03.06. 2010 08:03 »
Thanks Guys.
To be honest, I wasn't sure if you guys were serious or just having a lend of me.
I will give it a go.

Cheers Russ
1951 A10 Plunger.
Australia

Offline A10Boy

  • Wise & Enlightened
  • *
  • Join Date: Jun 2008
  • Posts: 1076
  • Karma: 11
  • Solihull, Near Birmingham England.
Re: Heating crankcases
« Reply #5 on: 03.06. 2010 11:01 »
You could always give them a good clean in the dishwasher before you put them in the oven, I find it stops the oven smelling of hot oil and giving the game away. After a couple of washes, the dishwasher hardly smells of petrol at all.
Regards

Andy

1958 Super Rocket
Plus
Harley Super Glide Custom
Yam XJR 1300

Online bsa-bill

  • Wise & Enlightened
  • *
  • Join Date: Mar 2006
  • Posts: 5674
  • Karma: 66
Re: Heating crankcases
« Reply #6 on: 03.06. 2010 11:07 »
These halogen ovens are brilliant, would hold a crankcase half and they're portable (take down to shed) cost around fifty UK£, so much cheaper than divorce.
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

Offline bsarider

  • A's Good Friend
  • ***
  • Join Date: Jun 2009
  • Posts: 55
  • Karma: 0
Re: Heating crankcases
« Reply #7 on: 03.06. 2010 13:16 »
Could you use the over for powder coating or has that already been done on a previous post. Alan

Offline A10Boy

  • Wise & Enlightened
  • *
  • Join Date: Jun 2008
  • Posts: 1076
  • Karma: 11
  • Solihull, Near Birmingham England.
Re: Heating crankcases
« Reply #8 on: 04.06. 2010 10:17 »
Your question interested me, and not knowing much about powder coatings, I had a quck google on the subject.

Wiki states that most coatings cure @200 degrees C in 10 minutes, and mentions infra red ovens, it looks like the complex bit is getting the right static charge unless you have the right gun.
Regards

Andy

1958 Super Rocket
Plus
Harley Super Glide Custom
Yam XJR 1300