FUEL SNIFFERS?

[Bigearl]

I installed a new sniffer when I bought my F28 as the original was not working. It indeed was valuable and a good investment as it warned me of a gas leak with full tanks. I found a small leak where the fuel gauge sender enters the gas tank, fixed that with new sealant -problem gone.
I also use my blowers until I get up on plane so there is some natural ventilation in the engine compartment.

My belief is that when you are up on the bridge running at cruising speed you rely on your instruments to warn of anything problematic happening in the engine compartment so temp, oil pressure, are important alarms, gas fumes are a critical alarm! I have also installed a water alarm with a float switch just in case a hose or similar lets go, cheap insurance.
Bigearl

[LandVF36]

I have two MTI units.
One panel is located in main solon. One pannel is located on the flybridge.
I run my blowers before starting and leave them run as long as the engines run. I figure why not.
My sniffers have saved me. I had a fuel pump diaphragm go bad on my genny. Just sitting at rest, the fuel siphoned through the crack and filled the crank case of the genny. The cork gasket of the genny oil fill was not enough to hold back the pressure and it leaked into the bildge.
Working sniffer means no boom!

[summer storm]

I recently installed the Xintex M-2A-R 2 Channel Gasoline Fume Detector in my 1987 SeaRay Sundancer. The boat is a little older but I got a great deal on it but it isn't without its fair share of problems. "The M-2A-R gas fume detector features include two-channel monitoring capability, plug-in sensors (second sensor optional), fault light alarm, fault lights to indicate a malfunction in either the module or one of the sensors." Thing has run like a champ so far. I bought it from a Boat Depot These guys seem to be really competitively priced but their site is kinda hard to navigate.

This post seems more like an ad than a real post, notice the "sea ray" and the thread is from quite a while back...hmmmm

Nice screen name too.

[jhalb]

I have owned my boat for two seasons have a Xintex M1 installed. The first season I didn't know what it was. This year after reading the manual, I figured it just didn't work. After reading this thread I went down to my boat to give it one more look before I ordered a new one. Followed the wires and found out it was hooked up to a accessory switch on my dash. I feel like Clark Griswold lighting up his Christmas lights.