stallswhen put in gear |
Post Reply |
Author | |
smac76
Groupie Joined: August-03-2016 Location: Maine Status: Offline Points: 54 |
Post Options
Thanks(0)
Posted: August-01-2017 at 1:03am |
I recently had the factory Holley rebuilt on my 76 SN and now I notice a slight whistle from the starboard side of the engine. This coincides with the fact that now the boat will stall when I put it in gear. The specialty carb shop that did the rebuild noted that they plugged some leaks in the carb. Would any other vacuum leaks become more pronounced? And could this be the cause of the stalling? I really have to either feather, or play with the throttle, or just plain hammer the throttle to keep from stalling when I put it into gear. Otherwise, the boat runs great. Idle is set at factory specs (about 700rpm) but idles about 1100rpm until it warms up. I notice the vent line from the back of the carb to the starboard valve cover has no clamp. Should there be?
|
|
It's 5 o'clock somewhere...
|
|
KENO
Grand Poobah Joined: June-06-2004 Location: United States Status: Offline Points: 10606 |
Post Options
Thanks(0)
|
Sounds like maybe you have a slight vacuum leak.
I'd look at the gasket between the carburetor spacer and the engine along with the one between the carburetor and the spacer. You could spray a little soapy water around the gasket areas to find the leak. It's safer than spraying highly flammable stuff around the engine while it's running That might fix your stalling going into gear or you might need to adjust your idle mixture screws to be a little richer. Assuming the carb shop set them at 1 1/2 turns out as a good starting point you may have to be a little farther out with them, but you should find the vacuum leak and fix it first. That hose you mention goes to the PCV valve and it wouldn't hurt anything to put a clamp on it |
|
smac76
Groupie Joined: August-03-2016 Location: Maine Status: Offline Points: 54 |
Post Options
Thanks(0)
|
Ya know, the carb shop gave me the two gaskets for both between the carb and the plate, and the plate and the manifold. But I didn't replace the lower one. I will do that next and continue in the search for vacuum leaks.
I'll take your advice and double check the idle screw to see how that changes things. |
|
It's 5 o'clock somewhere...
|
|
smac76
Groupie Joined: August-03-2016 Location: Maine Status: Offline Points: 54 |
Post Options
Thanks(0)
|
Well whaddayaknow, I pulled the carb, pulled the throttle plate off, cleaned the deck and replaced the gasket on the bottom to go along with the new one I replaced on the top. and viola! No whistle, starts right up, idles nice, and all is good.
|
|
It's 5 o'clock somewhere...
|
|
KENO
Grand Poobah Joined: June-06-2004 Location: United States Status: Offline Points: 10606 |
Post Options
Thanks(0)
|
Good job
And it didn't cost you anything |
|
Post Reply | |
Tweet
|
Forum Jump | Forum Permissions You cannot post new topics in this forum You cannot reply to topics in this forum You cannot delete your posts in this forum You cannot edit your posts in this forum You cannot create polls in this forum You cannot vote in polls in this forum |