BrocLuno
Lunatic Member
You are assuming that the fuel system is seeing the "pulses" from the low pressure engine pump, but it's not really. All mechanical diaphragm fuel pumps are "intermittent" by definition. They suck, then push... Fuel sensing systems have lived with this for ever ...
A good flow meter will average instantaneous flow over 1 or 2 seconds before offering you a read-out of what's going on. Only cheap badly designed ones will give jumpy instant readings all the time... The very best ones allow you to select the averaging period up to an hour. I like to use 10~12 seconds as an averaging period to get smooth meaningful flow numbers
I'm going to get one of these to play with: http://www.ebay.com/itm/3-8-Flow-Co...052943?hash=item33ae90bbcf:g:bEUAAOSwHPlWc9o5
I'll splice it into the flexible fuel line going to the motor from the on-board systems. If it starts to leak, or give me any trouble, I'll just pull that line off and put a straight hose on. The flex line is just outboard fuel hose with quick connects at both ends. Connect at the fuel/water separator, 6" of 3/8" EPA hose, this sensor, and 3' of EPA/USCG hose to the motor fuel connection. All new and made up. Low cost and we'll see if it will hold up to fuel/oil or not ... Cheap enough.
That engine salvage shop in Fresno (listed in a post a few back above) has that sun bleached 50HP Suzy cheap. It needs a few parts, but maybe less than your old one? Seeing as your old one will not get you more power; push comes to shove, I could go get it, bring it home and crate it up for proper shipment and freight it up to you. Good core to start with
A good flow meter will average instantaneous flow over 1 or 2 seconds before offering you a read-out of what's going on. Only cheap badly designed ones will give jumpy instant readings all the time... The very best ones allow you to select the averaging period up to an hour. I like to use 10~12 seconds as an averaging period to get smooth meaningful flow numbers
I'm going to get one of these to play with: http://www.ebay.com/itm/3-8-Flow-Co...052943?hash=item33ae90bbcf:g:bEUAAOSwHPlWc9o5
I'll splice it into the flexible fuel line going to the motor from the on-board systems. If it starts to leak, or give me any trouble, I'll just pull that line off and put a straight hose on. The flex line is just outboard fuel hose with quick connects at both ends. Connect at the fuel/water separator, 6" of 3/8" EPA hose, this sensor, and 3' of EPA/USCG hose to the motor fuel connection. All new and made up. Low cost and we'll see if it will hold up to fuel/oil or not ... Cheap enough.
That engine salvage shop in Fresno (listed in a post a few back above) has that sun bleached 50HP Suzy cheap. It needs a few parts, but maybe less than your old one? Seeing as your old one will not get you more power; push comes to shove, I could go get it, bring it home and crate it up for proper shipment and freight it up to you. Good core to start with
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