Author Topic: Frankenstein Motor just in time for Halloween  (Read 532 times)

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Offline RrockyRraccoon

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Frankenstein Motor just in time for Halloween
« on: October 30, 2017, 02:59:26 pm »
Hey everyone first time posting on the forum but definitely not the first time on here.  I'm in hydro lock hell at the moment  :-[ sand getting ready to do an overhaul figured I would track my progress, post my photos and get any advice anyone has to give. Heres my situation and what my plan is at this point. I got my bike (an '06) about 6 months back. The first thing that happened was a spun a bearing in the lower end.  Cracking the case sounded like more than I wanted to deal with at the time so I started lookin for a donor motor. I got super lucky. When I was on eBay doing a search, sorted by distance, for a new motor I was able to locate one only 3 miles from my house.  I went and picked it up for 400 bucks..   Couldn't have been luckier.  I slapped in the new motor and was back on the bike the next afternoon.  I decided to keep the old motor just in case I ever needed parts from it.  Well, I'm glad I did because I ended up hydro locking the replacement about a month later...  That's a long story I'm just gonna skip.  I thought about lookin for another motor but there aren't any near where I live and I gotta eventually stop buying new motors and just fixing the ones I've got or ill just end up with a pile of motors. Plus having a motor that I've thoroughly inspected tested and rebuilt sounds more appealing than gambling on some other mystery motor.

 A little background on me and the resources I have available.  I'm 30 retired from the Army and was in the process of getting my master automotive tech certificate before I joined the military.  I've built a '69 Jeep Jeepster  an '70 El Camino In the past 6 years.  I know I have the knowledge and patents to complete this project and I have a garage full of tools and equipment.  Plus I am lucky enough to have a full machine shop at my disposal and someone, with over ten years experience using the equipment in it, willing to help me at no cost. Oh and the factory service manual. 

 There are a few things I plan on doing when I have the bike apart besides replacing anything I happen to have bent during my hydrolock. 
1.  Add overflow tubes to the carbs.
2.  Clean the carbs.
3.  Valve job
4.  Rebuild my forks
5. Disassembling both motors and taking the best parts from them to create one.
6. clutch replacement
7.  Try not to lose my mind.......

Anybody have any suggestions, tips, or words of caution.
« Last Edit: October 30, 2017, 03:27:33 pm by RrockyRraccoon »

Offline Brooke_Benfield_OR

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Re: Frankenstein Motor just in time for Halloween
« Reply #1 on: October 30, 2017, 03:52:28 pm »
Before you start buying parts read here about the 1052cc builds that have been done.

Several years ago I got to ride one of them built by Colin Prior and...wow...it really livens up and smooths out these motors.
Brooke Benfield  2013 FJR1300  COG #2185

Offline Bob_C_CT

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Re: Frankenstein Motor just in time for Halloween
« Reply #2 on: October 30, 2017, 04:12:26 pm »
I assume you checked that you have a bent rod from the hydrolock with the piston height check.
You can have a hydrolock event without damaging a connecting rod, AMHIK, mine was bought that way and the previous owner thought it needed a new starter.
97 C10,ZRX Front, Meanie Rear

Offline cra-z1000

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Re: Frankenstein Motor just in time for Halloween
« Reply #3 on: October 30, 2017, 07:52:46 pm »
Get a new petcock !
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Offline Steve in Sunny Fla

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Re: Frankenstein Motor just in time for Halloween
« Reply #4 on: October 30, 2017, 08:20:25 pm »
live large - 1109cc... :motonoises: Steve
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Offline RrockyRraccoon

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Re: Frankenstein Motor just in time for Halloween
« Reply #5 on: October 30, 2017, 08:55:50 pm »
@ Brooke_Benfield_O & Steve in Sunny Fla:  Stepping up a few sizes is something I had been debating doing.  It's now looking more like a plan than thought.  Love the thought of a smoother ride. so far I have only purchased a gasket kit https://www.speedmotoco.com/product-p/608-4076.htm.  I'll be searching the forums for any threads about 1109 & 1052 builds.

@ cra-z1000: rebuilding my petcock is part of the plan can't believe I left that out.

@ Bob_C_CT: Yep I'm sure it's all bent up.  I had just put in a brand new battery too so she was crankin hard....  :)

Offline Steve in Sunny Fla

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Re: Frankenstein Motor just in time for Halloween
« Reply #6 on: October 30, 2017, 09:17:57 pm »
OK, I am not a certified master tech, in fact I have zero formal mechanical training. I built an 1109, in fact the only one built. You are trained and at master tech level. Don't even mess with the 1052 (although I did come up with one of those 2 designs, Bob Kardley came up with the other). So don't mess with the small stuff, 1109 or nothing. I'm throwing the gauntlet down...1109 or tap out now, let's see whatcha got.  :nananana: :rotflmao:  ;)  Steve
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Offline kevingore

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Re: Frankenstein Motor just in time for Halloween
« Reply #7 on: November 04, 2017, 09:13:33 pm »
1109 sounds intresting .would be a good winter project

Offline who me?

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Re: Frankenstein Motor just in time for Halloween
« Reply #8 on: November 05, 2017, 10:40:04 pm »
I vote 1109
I have no idea about anything.
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Offline Stasch

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Re: Frankenstein Motor just in time for Halloween
« Reply #9 on: November 05, 2017, 10:52:32 pm »
Quote
I assume you checked that you have a bent rod from the hydrolock with the piston height check.
You can have a hydrolock event without damaging a connecting rod, AMHIK, mine was bought that way and the previous owner thought it needed a new starter

+1   If you do in fact have a bent rod, the scope of your project changes depending if the bent rod is 1 or 4 vs. 2 or 3. 

1 or 4 means splitting the cases.   2 or 3 can be done with the engine in the frame.

You also want to match up rod weights, indicated by a letter (H through L IIRC)

Get a new petcock !

And since you'll have it apart anyway, get overflow tubes and new float valves (or a SISF treatment to take care of everything).
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Offline connie_rider

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Re: Frankenstein Motor just in time for Halloween
« Reply #10 on: November 06, 2017, 12:40:39 am »
Yea, RrockyRraccoon.
You didn't tell us which rod is bent?

Might not be a complete teardown to fix it.

Ride safe, Ted
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