HELP one more time.......

[steve forsythe]

I have probably asked this before but still dont know what ti do. Before my powerhead failed on my 200 carbed merc, i noticed a small brass nipple open with a small hose detached with a split in it. This nipple is on the opposite side of the spark plugs on the head. There are 3 nipples on each side with the hose going to the front of the head near the spark plugs. I have been told they are the overflow for unused oil and recirculated back in. With the hose off it spits an oil/fuel mixture all over the inside of the motor. I just picked the boat up from the dealer after they water tested the new powerhead and low and behold....the hose was off again and split!! Do you think it could cause a powerhead problem? Do you think the hose is bad and just needs to be replaced? All others are fine. What would cause the buildup of pressure to split the hose? Hose didnt looked blocked. Sorry for all the questions but i have to believe this contributed to the powerhead failure because there was nothing in the carbs, fuel lines, etc...Thank you.

 

[clanton]

Re: HELP one more time.......

If the engine was just rebuilt, and the rebuilder left the old split hoses hanging, I would say that quality was not job 1. The hoses are split because they are old and need to be replaced. If a mix of oil and fuel will go thru the fitting, air will pass also, and if air passes thru, it runs lean, not sure how lean. I also wonder about the carbs, year not indicated, but some years do not have the same size main jet in each carb, and the jets need to be matched to the correct carbuator. Replace the hoses, verify the carbs main jet, and timing.

 

[steve forsythe]

Re: HELP one more time.......

Thank you for the reply. The year is a 2000! Hoses should be in good shape. I think the dealer test ran it after installing the rebuild and the hose split again and they didnt notice. I will do what you say about the carbs. There are 3 and dealer said he checked for any gum or blocking. Is there a high quaility braided hose or something?? These are very small hoses made of plain rubber. Thanks.