Re: [OMC-Boats] Engine compartment venting

Hi Jeff,
I've had 2 Johnson Deluxe boats and neither of them had any type of
vents or hoses like the ones being mentioned, only one hose from the
bilge to the blower to the scoop on the rear passenger side.

J

On Jul 23, 2008, at 10:47 AM, JEFF DOOD wrote:

> nope. nada. just the bilge outlet. i even went back to the pre
> paint job photos i took after i bought it and no scoops there either.
>
> do you have a deluxe also? scoops on yours?
>
>
>
>
> On Jul 23, 2008, at 12:06 AM, D.J.Knight wrote:
>
>> Hey Jeff look on the outside back corners about a foot towards the
>> bow. Do
>> you have scoops there. They are only about one inch open and 5-6
>> inches
>> across.
>>
>> -----Original Message-----
>> From: omc-boats-bounces@...
>> [mailto:omc-boats-bounces@...] On Behalf Of JEFF DOOD
>> Sent: Tuesday, July 22, 2008 4:00 PM
>> To: Evinrude & Johnson Boats of the 1960's and 70's
>> Subject: Re: [OMC-Boats] Engine compartment venting
>>
>>
>> On Jul 22, 2008, at 10:23 AM, mckeown wrote:
>>
>>> Running the blower while underway is unnecessary if your factory
>>> venting system in intact. The original venting was designed to meet
>>> USCG specs. My '71 has two rear-facing vents with long 3" hoses
>>> attached. These hoses run to the bottom of the bilge so that
>>> whenever the boat is in forward motion, any fumes are being pulled
>>> out of the boat.
>>
>>
>> ahh - that's what those are for. i think i am missing the hoses
>> then.
>>>
>>> There are also two forward-facing air intakes that supply air for
>>> cooling and combustion to the engine compartment.
>>
>> don't have these. not on cowling, not on hull. but then again,
>> are we talking the same boats here? i have a johnson deluxe, single
>> engine I/O. engine and cowling sit right in the middle of the
>> back. bubble cowling covers just the engine - leaving those two nice
>> useless too small for jump seat areas on either side of the
>> compartment. my cowling does have a nice angled flat section on
>> the front where it looks like something is supposed to go - either an
>> emblem or a grill or something. but i find it hard to believe
>> that
>> just got left off somewhere. anyone else have this exact same
>> cowling?
>>
>> so it looks like all my engine is getting is whatever it can draw in
>> from the back grills, without the hoses that are suppose to be
>> there.
>>
>>
>>> Any addition of grilled openings would only increase noise; you'd
>>> see no change at all in engine cooling or performance. Remember,
>>> unlike a car where all waste heat comes out of the radiator and
>>> through the engine compartment, waste heat in our boats goes into
>>> the lake!
>>>
>>> Bob
>>>
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>>
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Received on Wednesday, 23 July 2008