Trojan Boat Forum

I rebuilt the carbs on my twin M360 Chryslers with a Sierra carb kit 18-7089. I found upon disassembly that the float drop was way too low and this would cause the carb to flood and this is why i always smelled gas after shut down. I looked in the carb after the last run and I could see fuel puddled on top of the throttle plates. After the rebuild I fired them up and after a run of about a half hour I pulled off the spark arrestor and the carb was nice and dry and no fuel smell like before. I also found during the rebuild that a previous owner had used the wrong interior gasket under the primary nozzel assembly which blocked some of the interior holes and the accelerator pump stroke was set too high as well. Now I just need to fine tune the carbs for best vacuum and idle but they seem to run really good as they are.

I rebuilt the AFB on my 318 as well. I carried the carb number to my local parts house and had them order a kit. I bought a gallon of carb clean and soaked everything overnight - clean my work bench so that you cold eat off of it and slowly, carefully cleaned and reassembled the carb. It wasn't too bad!! The Chrysler Marine Engine manual tells how to adjust the settings initially and then its little tweaks after that to get her going. The keys I found to doing a good job is CLEAN,CLEAN,CLEAN, go slow and pay attention.