Blower with Carb questions
07-18-2017 | 08:34 AM
#51
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Joined: Nov 2005
Posts: 4,554
Likes: 3
From: Fredericksburg, Va
moving the timing around without knowing where you are is like removing the pin in a blower motor, if wont idle try locking the dist(no advance) set it at 28 and try that, still flooding @ 3000 ????
07-19-2017 | 08:33 AM
#55
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Joined: Nov 2005
Posts: 4,554
Likes: 3
From: Fredericksburg, Va
There are several winter projects on the drawing board right now for this particular boat. Upgraded heads, cam and exhaust are on the ticket, but right now its a question of getting the engines to run right.
Took the boat out yesterday and did some more testing, came to the conclusion that the timing on that engine has to be way off. Backstory, we set timing on both engines on a run stand at 12 i believe. installed motors and had problems with the starboard engine not being able to handle the trans load when put in gear and dying. Advanced the timing a little on that engine in the boat on the water (no clue what its base timing is now). Port engine is without a doubt flooding out at 3000, so for giggles I had a buddy accelerate while I advanced timing on that engine, got it to 3300, wouldn't spin any faster before starting to flood out. I would've advanced the timing progressively more but had clearance issues with the lift eye and ignition box. I think we are on the right track of it being ignition, my plan is to remove clearance issues and take it back out this afternoon and see what exactly increasing the timing will do for it.....thoughts?
Took the boat out yesterday and did some more testing, came to the conclusion that the timing on that engine has to be way off. Backstory, we set timing on both engines on a run stand at 12 i believe. installed motors and had problems with the starboard engine not being able to handle the trans load when put in gear and dying. Advanced the timing a little on that engine in the boat on the water (no clue what its base timing is now). Port engine is without a doubt flooding out at 3000, so for giggles I had a buddy accelerate while I advanced timing on that engine, got it to 3300, wouldn't spin any faster before starting to flood out. I would've advanced the timing progressively more but had clearance issues with the lift eye and ignition box. I think we are on the right track of it being ignition, my plan is to remove clearance issues and take it back out this afternoon and see what exactly increasing the timing will do for it.....thoughts?
11-29-2017 | 05:57 AM
#57
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Joined: Mar 2016
Posts: 331
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From: Stephenville
Ended up getting everything dialed in, had to set the floats a few different times and get timing lined out. Just in time to sell the boat, have since picked up a 40’ navy hsb and am reworking it😊
12-03-2017 | 07:35 AM
#60
Charter Member #1472
Joined: Mar 2001
Posts: 315
Likes: 8
From: upstate NY USA
what I do when I have a carb issue, I pull the flame arrester off and look down both carbs, engine off, and see who is wetter, front carb, rear carb, primary or secondary, then I go from there, I never do anymore work than I have to or create more work by guessing and tearing everything apart.
