Neil Boyle
Member
- Joined
- Feb 7, 2011
- Messages
- 6
Hi I'm trying to get my nitro scale boat running without quitting and I would love to get some suggestions. I have 67 MAC, stock carb, Andy Brown Pipe at 11 1/2" (center of cylinder to weld), 86 Squire Shop that weighs about 18lbs., two tanks, 5/32" tubes in tanks, 5/32" large fuel line through out. Here's the problem- Boat will not keep running more than about 3-4 laps and then dies like it gets very lean. The tank closest to the carb is still full the 2nd tank is about half full when it dies. I have replaced the entire fuel system, tanks, lines, etc several times. I have a OS 9B carb that I was thinking about bolting on to maybe solve my problem. The OS 9B will bolt on but I'm not sure if it will work well given the difference in diameter in carb throats: OS carb throat is smaller than the MAC engine intake. Will that cause me other problems? Does anyone haveany experience using a OS 9B carb on a MAC? I am new to boating (and to this international waters - this is my first post ever)and have been working on this problem for quite some time -about 5 months now. Any help would be appreciated. Thanks!
I forgot to mention that I am running a 1455 prop in 60 degree salt water - in the San Diego pond. By the way, thanks for the replies that I already received! It helps me alot. Neil
I forgot to mention that I am running a 1455 prop in 60 degree salt water - in the San Diego pond. By the way, thanks for the replies that I already received! It helps me alot. Neil
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