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Author Topic: engine mounting v 4.0  (Read 77253 times)

tim

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Re: engine mounting v 4.0
« Reply #195 on: January 12, 2007, 03:41:52 AM »
Dave , Jack

The wheels on the 12/2 are keyed the same as the as the 6/1 . I,m not sure but this might be where some of the inbalance comes from , the keyway may be off just the tinest bit just enough to throw them out of balance.

tim

xyzer

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Re: engine mounting v 4.0
« Reply #196 on: January 12, 2007, 03:50:27 AM »
Thanks Tim and Hotator,
I know they had to do somthing there to use the same flywheels...on both. I thought I remembered George talking about a 12/2 with keyway off 180 or it wasn't and it was a jumper could have been a different issue. Alot safer with all the 650 RPM wheels the same!
Dave
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xyzer

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Re: engine mounting v 4.0
« Reply #197 on: January 12, 2007, 04:07:40 AM »
Guys I hate to be a pain in the a$$ but this is the only good pic of a 12-2 crank I could find



Is there a keyway on the right side?....
Now what?
Dave
« Last Edit: January 12, 2007, 04:11:38 AM by xyzer »
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MikeyT

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Re: engine mounting v 4.0
« Reply #198 on: January 12, 2007, 07:41:04 PM »
Looking at my original 12/2, the keyways are on in-line on the crank, the flywheels are keyed 180 out (wrt to the counterweights); if you are facing the intake/exhaust side of the engine, the right flywheel key is (more or less) on the same side and centered with the counterwieght, the left flywheel key is (more or less) opposite the center of the counterweight.

hotater

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Re: engine mounting v 4.0
« Reply #199 on: January 12, 2007, 07:46:30 PM »
MikeyT---

Thank you for that.   Its' absolutely staggering that they would DO such a thing, but thanks anyway.
7200 hrs on 6-1/5Kw, FuKing Listeroid,
Currently running PS-Kit 6-1/5Kw...and some MPs and Chanfas and diesel snowplows and trucks and stuff.

xyzer

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Re: engine mounting v 4.0
« Reply #200 on: January 12, 2007, 08:59:15 PM »
Tim,
Check out your other fly wheel on your 12/2 before you use it on a 6/1. I can't believe it either!
Dave
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MikeyT

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Re: engine mounting v 4.0
« Reply #201 on: January 13, 2007, 12:00:09 AM »
Peter had some comments regarding this and pictures of both twin flywheels a while back,
 see here: http://listerengine.com/smf/index.php?topic=1119.msg14608#msg14608

tim

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Re: engine mounting v 4.0
« Reply #202 on: January 13, 2007, 04:33:51 AM »
Dave
 The other flywheel is different its keyed 180 degrees out . Jez that would make a jumper. The one on the starting side is the same as the 6/1. :-[

tim

xyzer

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Re: engine mounting v 4.0
« Reply #203 on: January 13, 2007, 05:33:58 AM »
I don't know why they did that....it is the easy way for sure but could be a big problem. Setting up the 12-2 crank and putting the keyways in at 180 would make all the flywheels the same on 650 RPM engines and eliminate a big boo boo..
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hotater

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Re: engine mounting v 4.0
« Reply #204 on: January 13, 2007, 05:39:57 AM »
I'm with you, Dave. 
Can you imagine someone finding two old 12-2 wheels for their 6-1 and BOTH be wrong!

 Murphy is dancing a jig.
7200 hrs on 6-1/5Kw, FuKing Listeroid,
Currently running PS-Kit 6-1/5Kw...and some MPs and Chanfas and diesel snowplows and trucks and stuff.

Guy_Incognito

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Re: engine mounting v 4.0
« Reply #205 on: January 13, 2007, 06:43:25 AM »
They'll be fine as long as they use the requisite 2 tonnes of concrete as the mount.

That's what it was originally for, wasn't it? To hide Lister's terrible quality control?
Come on, we all know that's the truth.

 ;)

mobile_bob

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Re: engine mounting v 4.0
« Reply #206 on: January 13, 2007, 06:54:33 AM »
After seeing the redryder engine, it seems pretty apparent that a ton of crete may not be necessary at all.

been altering the frame design a bit

http://listerengine.com/coppermine/displayimage.php?album=random&cat=0&pos=-541
(this is a rough sketch of concept only, dimensions are not to scale and placement maybe altered)

with the latest evolution, i have moved the genhead off the subframe so as to keep the engine in the center of the subframe, and thus
keep the centerline of the crankshaft centered in the cradle.

with the genhead base plate mounted to the top of the cradle the weight of the generator works to bias the
stronger countertorque (anti torque to the english) of the power stroke,

sorry for being a pirate and taking the discussion back to the original topic :)
one pirate to another i guess

still playing around with idea's and design alternatives here

bob g
otherpower.com, microcogen.info, practicalmachinist.com
(useful forums), utterpower.com for all sorts of diy info

xyzer

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Re: engine mounting v 4.0
« Reply #207 on: January 13, 2007, 06:04:10 PM »
Sorry Bob!
I guess we at least kept it about Listeroid balance and not putting a 6/1 solid rocket and a 12/2 solid rocket on the space shuttle with a cox .049 to compensate for the inbalance...  :D That was a joke!  ;)
Dave
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