• Ciao Guest - You’ve landed at the ultimate Guzzi site. NEW FORUM REGISTRATIONS REQUIRE EMAIL ACTIVATION - CHECK YOUR SPAM FOLDER - Use the CONTACT above if you need help. New to the forum? For all new members, we require ONE post in the Introductions section at the bottom, in order to post in most of the other sections. ALWAYS TRY A SEARCH BEFORE STARTING A NEW TOPIC - Most questions you may have, have likely been already answered. DON'T BE A DRIVE-BY POSTER: As a common courtesy, check back in and reply within 24 hours, or your post will be deleted. Note there's decades of heavily experienced Guzzi professionals on this site, all whom happily give endless amounts of their VALUABLE time for free; BE COURTEOUS AND RESPECTFUL!
  • Be sure to see the GTM STORE link also above for our 700+ product inventory, including OEM parts and many of our 100% Made-in-SoCal-USA GTM products and engine kits. In SoCal? Click the SERVICE tab above for the best in service, tires, tuning and installation of our products or custom work, and don't miss our GT MotoCycles® (not) art on the BUILDS tab above. WE'RE HERE ONLINE ONLY - NO PHONE CALLS MADE OR RECEIVED - DO NOT EMAIL AND ASK QUESTIONS OR ASK TO CALL YOU.
  • There is ZERO tolerance on personal attacks and ANY HYPERLINKS to PRODUCT(S) or other competing website(s), including personal pages, social media or other Forums. This ALSO INCLUDES ECU DIAGnostic software, questions and mapping. We work very hard to offer commercially supported products and to keep info relevant here. First offense is a note, second is a warning, third time will get you banned from the site. We don't have the time to chase repeat (and ignorant) offenders. This is NOT a social media platform; It's an ad-free, privately funded website, in small help with user donations. Be sure to see the GTM STORE link above; ALL product purchases help support the site, or you can upgrade your Forum profile or DONATE via the link above.

Coolant Leak

gabbydad said:
Here's my saga.
Leak developed jsut after fist service. Clearly the bottom hose clamp. I replaced with a worm type all good...or so I thought. Rode about 10 miles to a buddy's house and got more fluid in that same slot as everyone else. For kicks, I checked the water pump bolts that I could access and 2 of them gave me a 1/4 turn or so. I rode for 2 weeks about 500 miles with everything dry.

Then the leak came back. New clamp fine. Other clamps holding. Thinking water pump gasket again; I cleaned the fluid up and I brought her to the dealer. It's a 50 mile ride and no further leak! Left the bike with them and got the call Saturday that the tech ran the bike several times and could not find a leak. It's staying dry again!

I'm picking her up tomorrow and will continue to monitor closely.
Click to expand...

Try the radiator cap.

Has Anyone tried these?
Not sure about the quality.
Says 1.1 bar is this value ok?

IMG_3299.webpIMG_3300.webp
 
Vagrant said:
I believe he means there is too much pressure on the system.
Click to expand...
Exactly thanks.

I believe the area visible as red gum material in the pictures get stuck or sticky or something and it does not release pressure to the reservoir tank, generating pressure on all hoses. Also, rotating the cap before every ride might be helpful. But beware coolant will fall if you open it since the reservoir is higher.

In any case it's a marvelous bike, just minor bugs that will be sorted out.

Now considering upgrading monoshock, with high and low damping, but mountings dimensions holes and bushings seems to be specific of V100, so researching options.
 
My update.
Dealer determined the leak stems from the water pump housing. New gaskets will be ordered and potentially new pump housing as well. In addition, a small oil leak deveopled and I was told it was due to a couple of bolts needing to be retorked.
Having bought the bike in early September, it's a bit of a bummer to lose it for so many weeks.
 
gabbydad said:
My update.
Dealer determined the leak stems from the water pump housing. New gaskets will be ordered and potentially new pump housing as well. In addition, a small oil leak deveopled and I was told it was due to a couple of bolts needing to be retorked.
Having bought the bike in early September, it's a bit of a bummer to lose it for so many weeks.
Click to expand...
Update on my update. The bike was moved to a sister dealer with a deeper pool of tech experience. Svc mgr called to tell me that actually it’s an upper hose that is leaking. Piaggio has approved/directed them to swap all the clamps for the worm type. When I asked about the water pump gasket he responded that they have not noted any leaking there. He did assure me that they’re not releasing my bike till they’re 100% confident that this has been resolved.
 
You must log in or register to reply here.
Back
Top