Re: [OMC-Boats] Engine compartment venting

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