01 vn750 ran hot, blown head gaskets - Kawasaki Vulcan 750 Forum : Kawasaki VN750 Forums
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post #1 of 26 (permalink) Old 12-13-2017, 03:42 PM Thread Starter
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01 vn750 ran hot, blown head gaskets

Hi all, im a long time follower but this is my first post. I recently purchased a 01 vn750 for my wife that has been sitting for 4 years. So far Ive cleaned the carbs, cleaned the tank, done the pick up mod, a battery, and put in new iridium plugs. I was fixing a oil leak on the right engine cover when I discovered there wasnt a drop of coolant in the entire motor When I add coolant it immediatly starts dripping out between the head gaskets on both cylinders. Time to pull the motor....

I did run and ride the bike with no coolant in it, on the stand I ran it 5-10 minutes than took it for a short ride around the block, maybe another 10 minutes for the ride. Do you think I caused any irrepairable damage? The motor never acted hot or felt too hot to me.

I plan to pull the motor this weekend and order partz after I tear it down. Besides the head gaskets, should I order anything else?
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post #2 of 26 (permalink) Old 12-13-2017, 11:06 PM
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would you mind doing an introduction in the newbie section, please? thank you.probably didn't do any damage, if it didn't run hot,but it's hard to know for sure unless you rip her down

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post #3 of 26 (permalink) Old 12-13-2017, 11:07 PM
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while the motor is out it wouldn't hurt to do stator and balancer bushings

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lowered with progessive 412 10" shocks
rejetted for K/N Pods part#rc 2340
sportster seat

'I didn't lose my mind.i gave it away

BRING BACK WOLFIE."Peace and Carrots"RIP
"And I'm free...as a bird"John Lennon Free as a Bird
"I only carry when I have my pants on"Joe Robinson RIP aka Old Dog
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post #4 of 26 (permalink) Old 12-14-2017, 02:41 PM
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If the motor didn't start making any noise or get too hot you'd probably be OK. These engines seem to run fairly cool, as long as you're moving anyways. Flush the oil.. if no metal particulates i'd say all good.

As mentioned, good time to address stator (they go out after 20-30k mi. less if you are unlucky,) and proactively change balance dampers.

1986 Kawasaki Vulcan 750
NGK Iridium Plugs #7803/DPR7EIX-9
Duralast Gold ETX15 AGM Battery
Coastered & Shaved
TOC MCCTs
Metzeler ME880 [110/90-19, 170/80-15]
Balance Dampers Replaced
Tuxedo Mod
Rebuilt Forks w/ Progressive Springs
V&H Cruzers
VN750.com Grill Cover
Meanstreak Seat
Emgo 23-92411 Handlebars
MOSFET FH012AA R/R


1990 Kawasaki Vulcan 750

1998 Honda VFR800 FI

2014 Honda VFR800F

1989 Pontiac Firebird Formula 350
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post #5 of 26 (permalink) Old 12-14-2017, 03:38 PM
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As someone who plans on splitting the case over the winter months, I also want to know "what else is needed".
So far this is what I think I'm going to need:

Things that should be replaced on a major/high milage teardown & reassembly
Head Gaskets (11004 x2)
balancers
stator
exhaust manifold crush gaskets x 2
clutch outside cover basket gasket (11060D right side of bike)
clutch cover gasket (11060B right side of bike)
stator cover gasket (11060A left side of bike)
transmission cover gasket (11060C left side of bike)
cylinder base gasket (11060 x 2)

Things specific to my rebuild
shift pawl oil seal (92049-1559)

Things I don't think I need to replace but should I?
valve cover gasket (11009)


What are other people's experiences with splitting the cases? Are all gaskets write-offs and need to be replaced? Do you guys generally make your own out of a sheet of gasket material (if so, are there any special considerations regarding oil/coolant/temperature) except for the head gasket? Anyone ever tried making an annealed copper head gasket?
Are there any o-rings for the oil/coolant systems that are notorious for needing to be replaced?
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post #6 of 26 (permalink) Old 12-14-2017, 04:33 PM
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Anything that's a paper gasket will break. Every time. Except when you want them to...

I like OE gaskets as far as paper ones go, they have done my well so far on my VNs.

1986 Kawasaki Vulcan 750
NGK Iridium Plugs #7803/DPR7EIX-9
Duralast Gold ETX15 AGM Battery
Coastered & Shaved
TOC MCCTs
Metzeler ME880 [110/90-19, 170/80-15]
Balance Dampers Replaced
Tuxedo Mod
Rebuilt Forks w/ Progressive Springs
V&H Cruzers
VN750.com Grill Cover
Meanstreak Seat
Emgo 23-92411 Handlebars
MOSFET FH012AA R/R


1990 Kawasaki Vulcan 750

1998 Honda VFR800 FI

2014 Honda VFR800F

1989 Pontiac Firebird Formula 350
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post #7 of 26 (permalink) Old 12-14-2017, 06:14 PM
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Quote:
Originally Posted by thtanner View Post
Anything that's a paper gasket will break. Every time. Except when you want them to...

I like OE gaskets as far as paper ones go, they have done my well so far on my VNs.
So... you're saying you'd buy rubber-fiber sheet instead of 'standard' gasket sheet?

1992 US-nonCA * tuxedo mod * r/r relocated

Vulcan slang for newcomers
Service Manual Download
Wiring Diagram + annotations * still undergoing revisions, but still more useful than the generic one. Let me know if you find mistakes or think something additional should be added
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post #8 of 26 (permalink) Old 12-14-2017, 07:39 PM
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Quote:
Originally Posted by Thorn View Post
So... you're saying you'd buy rubber-fiber sheet instead of 'standard' gasket sheet?
No, just saying that paper gaskets usually don't survive removal is all. The paper/wax gaskets OEM uses is just fine single use.

Whatever the OEM material is seems to work great. - if that's the name for it it's a winner.

1986 Kawasaki Vulcan 750
NGK Iridium Plugs #7803/DPR7EIX-9
Duralast Gold ETX15 AGM Battery
Coastered & Shaved
TOC MCCTs
Metzeler ME880 [110/90-19, 170/80-15]
Balance Dampers Replaced
Tuxedo Mod
Rebuilt Forks w/ Progressive Springs
V&H Cruzers
VN750.com Grill Cover
Meanstreak Seat
Emgo 23-92411 Handlebars
MOSFET FH012AA R/R


1990 Kawasaki Vulcan 750

1998 Honda VFR800 FI

2014 Honda VFR800F

1989 Pontiac Firebird Formula 350
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post #9 of 26 (permalink) Old 12-14-2017, 08:47 PM
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also, paper gaskets work great on highly machined surfaces.. nice and smooth mating surfaces.

less cleanly machined surfaces will need a cork, rubber, or other material that has more 'give' to it.

2005 VN750

Sold 11-27-17
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post #10 of 26 (permalink) Old 12-14-2017, 09:22 PM
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Awesome, thanks guys.

1992 US-nonCA * tuxedo mod * r/r relocated

Vulcan slang for newcomers
Service Manual Download
Wiring Diagram + annotations * still undergoing revisions, but still more useful than the generic one. Let me know if you find mistakes or think something additional should be added
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