Suspect blown head gasket - Harley Davidson Forums: Harley Davidson Motorcycle Forum
Harley-DavidsonForums.com is an independent enthusiast website owned and operated by VerticalScope Inc. Harley-DavidsonForums.com is not sponsored by or in any way affiliated with Harley-Davidson Inc.. The Harley Davidson names and logos are trademarks owned by Harley-Davidson Inc.

Go Back   Harley Davidson Forums: Harley Davidson Motorcycle Forum > Technical > Engine

» Insurance
» Our Partners
»ATV Reviews
»Motorcycle Games
Reply
 
LinkBack Thread Tools Display Modes
Old 11-28-2012, 07:02 AM   #1 (permalink)
Senior Member
 
tussuck's Avatar
 
Join Date: Jan 2010
Location: Australia
Posts: 426
Suspect blown head gasket

Hey there.... I suspect I have a blown or leaking front head gasket because I have black oily chit on the fins in the area where the head meets the cylinder.

What's a good test to check things out? I do have a comp tester but not a leakdown one if that helps.


Sent from my iPhone using Motorcycle.com App
__________________
I prefer my engine blown not stroked!
D.L.R.A #1174
tussuck is offline   Reply With Quote
Old 11-28-2012, 07:04 AM   #2 (permalink)
Retired citizen
 
SCHMIDTYS's Avatar
 
Join Date: Jun 2009
Location: Pt. Wash.,WI
Posts: 12,904
Use your compression tester, you'll be able to hear the leak. Check both cylinders for comparison.
__________________
Disclaimer : Don't believe anything I say unless you are absolutely sure that I know what I'm talking about .
SCHMIDTYS is offline   Reply With Quote
Old 11-28-2012, 07:07 AM   #3 (permalink)
Grandstanding Member
 
Dave63's Avatar
 
Join Date: Jun 2008
Location: PA
Posts: 29,477
Compression testing will show a change if the gasket is violated.

Regardless, if the compression ring isn't damaged and it's leaking via the oil passage, you'll still have to yank the head to repair the leak. I'm guessing the compression ring is leaking because the oil passages have dowels in them. As well, no pressure to push anything out, unless a pressure source is created.
__________________
__________________________________________
“Peter, arson is a serious crime. It's not like smuggling Oriental hookers into the country, in steel drums........” ~ Glenn Quagmire~
Dave63 is online now   Reply With Quote
Old 11-28-2012, 02:39 PM   #4 (permalink)
Senior Member
 
tussuck's Avatar
 
Join Date: Jan 2010
Location: Australia
Posts: 426
Thanks guys... I'll run the test when I get home tonight. I have been wondering how long the gasket would last so perhaps I now know...lol

The rings should be okay as they are only one season old, but you never know how hard the blower is on the engine. Fingers crossed they are fine and that its a storm in a teacup.


Sent from my iPhone using Motorcycle.com App
__________________
I prefer my engine blown not stroked!
D.L.R.A #1174
tussuck is offline   Reply With Quote
Old 11-28-2012, 03:01 PM   #5 (permalink)
Senior Member
 
bikedelic's Avatar
 
Join Date: Oct 2010
Location: Charlotte/Harrisburg NC
Posts: 868
Garage
Sorry to hear of your troubles. Good luck straightening it out.
bikedelic is offline   Reply With Quote
Old 11-29-2012, 06:25 AM   #6 (permalink)
Retired citizen
 
SCHMIDTYS's Avatar
 
Join Date: Jun 2009
Location: Pt. Wash.,WI
Posts: 12,904
Try the James or Cometic multi-layered (sandwiched) head gaskets.
__________________
Disclaimer : Don't believe anything I say unless you are absolutely sure that I know what I'm talking about .
SCHMIDTYS is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Powered by vBadvanced CMPS v3.2.2

All times are GMT -5. The time now is 05:10 AM.



Powered by vBulletin® Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Search Engine Optimization by vBSEO 3.6.0
Garage Plus vBulletin Plugins by Drive Thru Online, Inc.
This site is in no way affiliated with Harley-Davidson
Motorcycle News, Videos and Reviews
Honda Grom Forum Harley Davidson Forum Honda 600RR Kawasaki Forum Yamaha R6 Forum Yamaha FZ-09 Forum
1199 Panigale Forum Roadglide Forum Honda CBR1000 Forum Vulcan Forum Yamaha R1 Forum Yamaha R3 Forum
Ducati Monster Forum Harley Forums Honda CBR250R Forum ZX10R Forum Star Raider Forum Yamaha Viking Forum
Suzuki GSXR Forum V-Rod Forums Honda Shadow Forum Kawasaki Motorcycle Forum Star Warrior Forum KTM Duke 390 Forum
SV650 Forum BMW S1000RR Forum Honda Fury Forum Kawasaki Versys Forum Drag Racing Forum Ducati 899 Panigale Forum
Suzuki V-Strom BMW K1600 Triumph Forum Victory Forums Sportbikes BMW NineT Forum
Volusia Forum BMW F800 Forum Triumph 675 Forum MV Agusta Forum HD Street Forum Suzuki GW250 Forum
Yamaha Motorcycles Victory Gunner Forum Honda Vultus Forum HD LiveWire Forum