Author Topic: #2 Rod Change With Motor in Frame?  (Read 1393 times)

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Offline Chad

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#2 Rod Change With Motor in Frame?
« on: May 18, 2015, 03:52:18 pm »
Calling experts. Connie_Rider says it can be done. Any write ups on this surgical procedure?

Offline connie_rider

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Re: #2 Rod Change With Motor in Frame?
« Reply #1 on: May 18, 2015, 04:11:53 pm »
Connie_Rider (ie; "Me") has never done the procedure, but have heard of others doing so.

Please show us your vast knowledge, and help the New COGer out!   ;)


Ride safe, Ted
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Offline goatmar

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Re: #2 Rod Change With Motor in Frame?
« Reply #2 on: May 18, 2015, 04:27:25 pm »
 :TPIWWP:
Dave Muzzey  St. Charles, IL  COG#7957  '01 Connie  100K miles and counting

Offline Steve in Sunny Fla

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Re: #2 Rod Change With Motor in Frame?
« Reply #3 on: May 18, 2015, 08:09:24 pm »
Well yeah, you can, but you're going to have to pull the carbs / exhaust / head anyway, then the pan, and probably flip the bike over to do the job.  I dunno, I'd just pull the engine out  if it was me, and then make all the upgrades you want while it's on the bench. BTW, that big bend is exactly as I expected. Steve
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Offline SteveJ.

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Re: #2 Rod Change With Motor in Frame?
« Reply #4 on: May 18, 2015, 11:30:11 pm »
Calling experts. Connie_Rider says it can be done. Any write ups on this surgical procedure?
Clymers and the shop manual both have write ups.  ;)

Seriously, at least get the Clymer iff'n you're the one that will be doing the wrenching.
Yeah, if you want true ram air tuning, you better be willing to ram some air! (SiSF)
Steve J  Tavares, FL, one of the Floriduh Steves
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Offline Chad

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Re: #2 Rod Change With Motor in Frame?
« Reply #5 on: May 19, 2015, 12:44:25 am »
I just picked up a parts bike with complete motor. Miles & condition are unknown. I will see if it turns over freely. If so, I will swap carbs & see how it runs. If it runs with no noises, I will pull carbs back off & have them worked by Steve. I think that's his name.

Offline Kawadog

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Re: #2 Rod Change With Motor in Frame?
« Reply #6 on: May 19, 2015, 01:35:43 am »
Chad to answer your questions...Yes..just look up my posts on changing #2 and 3 piston without removing engine.
You can change #2 Piston and rod without any issues..The #3 rod will require u to remove the balancer..
It is not all that difficult to do..just a little imagination..and the purchase of gaskets..and matching the #3 and #2 rod..They have to Weigh the same..kawasaki does this by letter..U have to match both by letter. Chances are, someone here has a rod that will match ur #3 rod. 
HTH
By the way Steve in Sunny Fl and Rev Rider were instrumental in me completing the project..
2 Great folks with a lot of knowledge and can explain how to do things where even people like me can tear the bike apart and put it all back together,
Got 20,000 on the new/used  #2 rod and the #3 piston..
Like Rev told me ("U can do this!)
U can too Chad...Mark
« Last Edit: May 19, 2015, 01:43:06 am by Kawadog »

Offline Stasch

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Re: #2 Rod Change With Motor in Frame?
« Reply #7 on: May 19, 2015, 02:43:49 am »
2 & 3 can be done in the frame, but radiator and exhaust have to come off.  I have done this.

A roll on bike lift that can jack the bike up about 3 feet is a must IMO. 

Doing this laying on the ground with the bottom of the engine 6" off the ground would not be fun.

SISF was very helpful to me during my project as well.
Stan Visser - COG#: 6830 - - C10 Stuff For Sale - Parts List

He IS a racer, hence the forward lean!!  by: Mettler1

Offline Coyote Chris

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Re: #2 Rod Change With Motor in Frame?
« Reply #8 on: May 19, 2015, 03:11:01 am »
Chad, you are the man.  Please take pics with a point and shoot.  Don't worry about posting them....you can always send them to someone here and they will post them for you or you can put them up on an on line photo album....

Offline Rev Ryder

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Re: #2 Rod Change With Motor in Frame?
« Reply #9 on: May 19, 2015, 03:48:27 am »
I've done this on the centerstand on the floor.  It certainly isn't all that hard. But you do pull the head, carbs, radiator, exhaust, but not the rear wheel and swingarm... no splitting of cases, etc.  I also pulled cylinders, but you probably wouldn't have to with a ring compressor.   
« Last Edit: May 19, 2015, 03:51:37 am by Rev Ryder »
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Offline Chad

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Re: #2 Rod Change With Motor in Frame?
« Reply #10 on: May 19, 2015, 02:19:22 pm »
Good to know. I have a car lift & can lift frame with it. Nice to know rods are labeled. Therefore, I can just match letter on #2 rod & leave #3 untouched.

Offline Rev Ryder

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Re: #2 Rod Change With Motor in Frame?
« Reply #11 on: May 19, 2015, 04:08:13 pm »
Good to know. I have a car lift & can lift frame with it. Nice to know rods are labeled. Therefore, I can just match letter on #2 rod & leave #3 untouched.
Yes.
And post up here which rod you need and perhaps one of us will have a suitable donor for ya.
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Offline Chad

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Re: #2 Rod Change With Motor in Frame?
« Reply #12 on: May 19, 2015, 04:53:25 pm »
Looks like I may not need the parts bike after all. Should I scatter motor & sell pieces?

Offline Bob_C_CT

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Re: #2 Rod Change With Motor in Frame?
« Reply #13 on: May 19, 2015, 05:51:08 pm »
If you already have the parts bike and room to store it, I would keep it til you have yours running. JMHO.
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Offline jettawreck

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Re: #2 Rod Change With Motor in Frame?
« Reply #14 on: May 19, 2015, 06:08:47 pm »
Looks like I may not need the parts bike after all. Should I scatter motor & sell pieces?

Seems as you have options. You can transplant the parts bike engine or repair the existing one and still have a "matching numbers" bike. In MN the DMV requires VIN# and "motor number" on motorcycles (but not cars/trucks). If they don't match the previous title transfer there is more paperwork. Always more paperwork at the Mn DMV. ::)
Snowmobiles, I have a bunch.
Motorcycles-I haven't had anything except dirtbikes 30 years ago, so this will be all new to me.
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Offline MAN OF BLUES

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Re: #2 Rod Change With Motor in Frame?
« Reply #15 on: May 19, 2015, 07:45:05 pm »
I just picked up a parts bike with complete motor. Miles & condition are unknown. I will see if it turns over freely. If so, I will swap carbs & see how it runs. If it runs with no noises, I will pull carbs back off & have them worked by Steve. I think that's his name.

might just wanna do a hydro piston measurment test on that puppy also before turning it over... maybe?

 ::)

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Offline Chad

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Re: #2 Rod Change With Motor in Frame?
« Reply #16 on: May 20, 2015, 12:00:02 am »
I like the idea of keeping the original motor too. If history of donor motor was known excellent, I might think differently.

Offline Coyote Chris

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Re: #2 Rod Change With Motor in Frame?
« Reply #17 on: May 20, 2015, 01:59:23 am »
I like the idea of keeping the original motor too. If history of donor motor was known excellent, I might think differently.
I don't envy you that decision.  If you can prove the motor wasn't stolen and you COULD get the title changed, I would be tempted to try the doner motor first, after doing the hydro test and compression test.  If it works well and doesn't burn oil, etc. you sell off the other doner parts and all you have to store is the bent engine, which you could fix at your leasure. 
On the other hand, if you can replace a rod or two and get this bike running with the original engine, it might save you a bunch of time and you STILL have a spare engine.

Chris who hopes his C10 and NT700v out live him cause there aint nothing out there anymore that is as close to what I need as those two bikes...