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post #1 of 12 (permalink) Old 09-29-2009, 12:20 AM Thread Starter
 
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need some experienced opinions.

hi, i need some experienced opinions.

i redlined my baby, and now she likely has a bent connecting rod.

a rebuild would be a pain, and now i want a larger/faster bike. can anyone tell me what the general range of costs i might expect for a rebuild? or if it is generally more profitable to part the bike out on eay and craigslist, or to simply sell it whole?

thanks for helping a newbie in advance.
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post #2 of 12 (permalink) Old 09-29-2009, 12:28 AM
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What makes you think it has a bent connecting rod?


85 VN700 "Old Yella"

REBUILT ENGINE
CUSTOM PAINT
VANCE & HINES CRUZERS
EAR SHAVED AND RE-JETTED W/K&N'S
DUNLOP ELITE K591 FRONT & REAR
VOLTMETER
SYNTHETIC BRAKE FLUID
SYNTHETIC OIL & GEAR LUBE
PLEXISTAR 2 WINDSHIELD
SPLINES LUBED
ACCT'S GREASED W/TOC SPRINGS
COASTERD
LEATHER SADDLE BAGS
LEATHER TOOL AND ROLL BAG
PICKUP COILS GAPPED AT .018"
NGK CAP, WIRES, IRIDUMS
BARNETT FRICTION PLATES & SPRINGS
CUSTOM GRIPS, MIRRORS, LEVERS
ORIGINAL STATOR & R/R 14.5v
DEKA MF AGM ETX15L

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post #3 of 12 (permalink) Old 09-29-2009, 04:29 AM
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Lance whats the book time??

X2 (y conecting rod did the piston slap something?) (im more appt to believe bent valve and broken piston...) if there was contact )and id be more appt to belive balance dampeners or cct if there wasnt contact) What year how many miles? I find bent rods come more from hydrolocking....
)

If i were closer id do it at a steal of a deal ...



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post #4 of 12 (permalink) Old 09-29-2009, 07:39 AM
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Not sure of the book time for rod replacement since a bent rod normaly means more parts than I care to list. I just spent a couple hours posting a fork seal replacement procedure and I damn sure don't want to get into a connecting rod replacement proceedure.

He needs to clarify, " I hit redline and now I think I have a bent rod" is too vague, I need specifics of what the engine did or is doing.

Hell!! A couple of weeks ago I took mine to 11000 rpm a couple of times just to prove it could do it. But I found the weak link, it was not the bottom end, it was the hydraulic lash adjusters that caved under the pressure. This is why racing engines use solid lash adjusters with adjustable rocker arms.

I was ready to pull the front cams and replace the bad lash adjuster but after it sat a couple days I started it and the adjuster pumped back up.

I am sure it is the same one that was on again off again before the rebuild, but when I checked them they were all in tolerance. So when it gets too damn cold to ride I have four new ones to go back in, unless I can find the bad one.


85 VN700 "Old Yella"

REBUILT ENGINE
CUSTOM PAINT
VANCE & HINES CRUZERS
EAR SHAVED AND RE-JETTED W/K&N'S
DUNLOP ELITE K591 FRONT & REAR
VOLTMETER
SYNTHETIC BRAKE FLUID
SYNTHETIC OIL & GEAR LUBE
PLEXISTAR 2 WINDSHIELD
SPLINES LUBED
ACCT'S GREASED W/TOC SPRINGS
COASTERD
LEATHER SADDLE BAGS
LEATHER TOOL AND ROLL BAG
PICKUP COILS GAPPED AT .018"
NGK CAP, WIRES, IRIDUMS
BARNETT FRICTION PLATES & SPRINGS
CUSTOM GRIPS, MIRRORS, LEVERS
ORIGINAL STATOR & R/R 14.5v
DEKA MF AGM ETX15L

Best Auto/Moto Insurance | Motorcycle Protection Today | FREE Trade-In Quote
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post #5 of 12 (permalink) Old 09-29-2009, 10:21 AM Thread Starter
 
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1986 vn750 13,000 miles

R/R. new battery

i used the haynes tech book, i have what sounds like one piston slapping when i pull the plug and turn her over. i will use the book, and tech manuals for the rebuild, if that is what i do. i am not mechanical, but ive always been able to do what is needed from a book on all my vehicles. i just dont have a good place for the rebuild

i had run to the corner store first thing in the morning and when left the store i really got on it. heard a slight ping and it sounded a little odd, but i thought maybe it was just my imagination, the next day i went to the store again, and when i left it began to make a loud noise like something was in the cylinder bouncing around. then it died. i put it in my pick up and took it home. after a few days i pulled the plugs one at a time and turned it over. it seemed like something came out of the right front piston. maybe a piece of carbon, (i seafoamed the bike well this spring) maybe nothing but hot air, im not sure, but then the piston was slapping to beat the band. it may be something more. i wont know until i get it apart.
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post #6 of 12 (permalink) Old 09-29-2009, 11:19 AM
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I would surely check the accts before anything else.
Read the vulcan verses.

02 honda sabre 1100
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post #7 of 12 (permalink) Old 09-29-2009, 12:33 PM
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The bike is old enough for the balance dampers to start disentigrating. Have you used the side oil drain and checked to see if there are any rubber, or worse, metal flakes on the screen or in the oil?

I'm keepin' all the left over parts. I'm gonna use 'em to build another bike!
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1989 VN750 acquired December, 2008, 6,711 miles
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post #8 of 12 (permalink) Old 09-29-2009, 02:51 PM Thread Starter
 
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Quote:
Originally Posted by niterider View Post
I would surely check the accts before anything else.
Read the vulcan verses.
i called toc a few weeks ago and they said it wouldnt be the problem. but i can look it up and check it, unless i need a special tool
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post #9 of 12 (permalink) Old 09-29-2009, 02:53 PM Thread Starter
 
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Quote:
Originally Posted by flitecontrol View Post
The bike is old enough for the balance dampers to start disentigrating. Have you used the side oil drain and checked to see if there are any rubber, or worse, metal flakes on the screen or in the oil?
no, but thats a good idea.
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post #10 of 12 (permalink) Old 09-29-2009, 03:44 PM
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Quote:
Originally Posted by warpspeedpetey View Post
i called toc a few weeks ago and they said it wouldnt be the problem. but i can look it up and check it, unless i need a special tool
the only special tools u will need will be in the motor and that would be fto get the rotor off and to hold the clutch assembly.... other then that a basic metric mechanics tool set will be your friend in all repairs the only other tool would be the allen for the frame bolts...



Stator #3
MF AGM
DeGoated
Ears Shaved
R/R relocated
Rebuilt



She's worth her weight in GOLD
If u dont have it already Here is the Service Manual
How To Test the Stator
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