350 Magnum Trouble with through transom exshaust
#1
Registered
Thread Starter
Join Date: Sep 2016
Posts: 4
Likes: 0
Received 0 Likes
on
0 Posts
350 Magnum Trouble with through transom exshaust
I bought a 1989 Blue Water with factory 350 Magnum that had the top end beefed up with head porting cam roller rockers and carb, etc including new straight open exhaust through the transom above the water. Its a real screamer and a lot of fun to run but my family is going deaf when skiing or wake boarding. I bought the parts to put the factory exhaust back together through the out drive but the engine will only run out of the water, as soon as i put the boat in the water the engine will start initially but once shut down it wont start again. It appears that the exhaust restriction loads up the engine and prevents a restart.
Any suggestions on how to remedy this? i have been considering a re manufactured factory spec 350 long block to put the boat back to stock hoping the exhaust will work then but hoping i can do something much cheaper.
Any help is much appreciated
Any suggestions on how to remedy this? i have been considering a re manufactured factory spec 350 long block to put the boat back to stock hoping the exhaust will work then but hoping i can do something much cheaper.
Any help is much appreciated
#5
Registered
Thread Starter
Join Date: Sep 2016
Posts: 4
Likes: 0
Received 0 Likes
on
0 Posts
How do i know for sure? My first thought was that there was some blockage in the drive so i poured some waster into the y tube that leads down to the drive and as fast as i could pour out of a 1 gallon jug it ran out the bottom.
#7
Registered
http://marineexhaust.ggb.ca/
I purchased a set of 5 rings to quiet down my 496. They did a great job and did not lose any performance.
I purchased a set of 5 rings to quiet down my 496. They did a great job and did not lose any performance.
#8
Registered
Thread Starter
Join Date: Sep 2016
Posts: 4
Likes: 0
Received 0 Likes
on
0 Posts
http://marineexhaust.ggb.ca/
I purchased a set of 5 rings to quiet down my 496. They did a great job and did not lose any performance.
I purchased a set of 5 rings to quiet down my 496. They did a great job and did not lose any performance.