Hi all,
2 weeks ago went on a 16 mile run headed up river. Start em up, head out. on off plane 4 times with at least a mile in-between then the last part of the trip is no wake zone for about 20 to 35 min. Port engine stumbles while running between 700 to 800 rpm and stalls.
Checked fuel filter, fuel hose to pump, antisiphon valve and fuel level in the tank. Spent about 2 hours troubleshooting and still would not start, fired a few cylinders but not enough to stay running.
Spent the night, woke up in the morning had some coffee while I made a list of tools I would need. Figured I would give it a try. 3rd time cranking she fired right up. No issues the whole way home, reverse no wake at front and hardly any at the end.
The next week make the same exact run and it does it again, only this time about 1/4 mile earlier than before, boat was loaded with people this time for a day trip.
I thought this might be a heat problem with the cool fuel, not sure if it has sensors or not. Took a big bag of ice and put it on the cool fuel unit. 40 minutes later she fired right up. We left about an hour after that. Fired right up, ran for about 10 min in no wake and she stalled again. Put more ice on her and waited til I was passed the long no wake zones. She fired up and ran good all the way back to the slip. Again just 2 small no wake areas.
I grabbed the laser temp gun and shot both fuel cans, the port cainister is running 25 to 30 degrees hotter than the STBD. STBD is like 80-85 PORT is over 100 at times. Even feels different to touch.
Port water pressure reads higher that the STBD on the smart craft.
So is it possible that there is some sand or a clog in the cooling tubes that are in the can or in the hoses that run water thru it to cool it?
$900 fuel pump buys a lot of bags of ICE and keeps the drings cold too
2007 8.1 375HP Bravo III GENIII Cool Fuel Pump Assemly
Any help appreciated.
2 weeks ago went on a 16 mile run headed up river. Start em up, head out. on off plane 4 times with at least a mile in-between then the last part of the trip is no wake zone for about 20 to 35 min. Port engine stumbles while running between 700 to 800 rpm and stalls.
Checked fuel filter, fuel hose to pump, antisiphon valve and fuel level in the tank. Spent about 2 hours troubleshooting and still would not start, fired a few cylinders but not enough to stay running.
Spent the night, woke up in the morning had some coffee while I made a list of tools I would need. Figured I would give it a try. 3rd time cranking she fired right up. No issues the whole way home, reverse no wake at front and hardly any at the end.
The next week make the same exact run and it does it again, only this time about 1/4 mile earlier than before, boat was loaded with people this time for a day trip.
I thought this might be a heat problem with the cool fuel, not sure if it has sensors or not. Took a big bag of ice and put it on the cool fuel unit. 40 minutes later she fired right up. We left about an hour after that. Fired right up, ran for about 10 min in no wake and she stalled again. Put more ice on her and waited til I was passed the long no wake zones. She fired up and ran good all the way back to the slip. Again just 2 small no wake areas.
I grabbed the laser temp gun and shot both fuel cans, the port cainister is running 25 to 30 degrees hotter than the STBD. STBD is like 80-85 PORT is over 100 at times. Even feels different to touch.
Port water pressure reads higher that the STBD on the smart craft.
So is it possible that there is some sand or a clog in the cooling tubes that are in the can or in the hoses that run water thru it to cool it?
$900 fuel pump buys a lot of bags of ICE and keeps the drings cold too
2007 8.1 375HP Bravo III GENIII Cool Fuel Pump Assemly
Any help appreciated.