Anyway, I had heard of VB selling thick diaphragms, but that was a few years ago. Didn't realize it wasn't resolved.
my info on float height is also 17mm, without the gasket...but you've got that sorted
I've run nothing but ethanol free through my GT6 and mowers and in the past 5 years I haven't had a gumming up issue. Lucky for me I have a station within walking distance--fortunately I haven't needed to resort to that.
Seems to me the 10 mile drive would be worth it.
"It's not unusual for the GT6 carbs to gum up with as little driving as it sees but it used to take a year or more. This every 3 months thing is just ridiculous."
This is exactly what I'm experiencing recently,it used to be that the fuel may start to gum-up after a year or so, now it's 3 or 4 months.
My 1st question to folks with running issues nowadays is how old is the fuel... any older than that & I immediately suspect a fueling issue, clogged filters, stuck float valves, heavy deposits on needle & seat resulting on a very lean mixture.
I used to run gas generators for the shop & home, for power-out situations, 2 and a spare, and kept them all up on service.
Last year I switched over to diesel units because I got tired of having to clean the fuel systems all the time.
Heck I even got an electric chain saw recently...
Glen
In the space of 3 months fuel has gummed up my string trimmer, leaf blower, lawnmower, and the GT6.
I have never taken a position about ethanol in fuel. It may or may not be responsible for what is happening to me now. However, I have located two stations within a 10 mile round trip of home that have ethanol-free gas. I'll be topping up at one of them soon AND I will be adding Sta-Bil to the tank.
It's not unusual for the GT6 carbs to gum up with as little driving as it sees but it used to take a year or more. This every 3 months thing is just ridiculous.
Doug L.
I had the same problem with my portable generator this year. Totally gummed up the carb and everything else. My GT6 is strictly track and gets 110 leaded, but that's $10/gallon these days.
So far, I have not had this issue with my street TR6 - guess I better throw in some stabilizer !!!
I never got to drive the GT6 more than around the block going back to June. After dealing with problems on other cars and the house I finally got back to the GT6 during the first week in September, 3 months after fixing the carbs.
The engine would not start. It turned out to be... stuck float valves due to heavy deposits. These were brand new regular float valves (not Grose Jets) from Joe Curto. The fuel in the tank was also new 3 months ago. I am blaming North Carolina's humidity and the E10 gas available here. I have NEVER blamed anything on ethanol before but I am now.
I got the carbs cleaned up (deposits were on ALL the wetted surfaces) and the engine runs again. However, going to move the car the brake pedal went straight to the floor. Once the new wheel cylinders arrive I'll fix the brakes and take the car somewhere to buy ethanol-free gas to which I will add Sta-Bil. I am really getting tired of fuel problems and hope the lack of ethanol and addition of fuel stabilizer will address this.
Wish me luck... and please share any advice you have on how to stop this rapid growth of fuel deposits in my carbs. It didn't use to be this way!
Doug L.
Ah another Brit car story with a happy ending, glad it all worked out...!
Glen
Responses