Jump to content
  • Announcements

    Welcome! New around here? Take a look at the New Members' Guide for some pointers.

    Not a member yet? Sign up here and you can soon be chatting away with friends old and new..

    Check out our Handy Information section if you're after something quickly!

Engine bay ventilation


Recommended Posts

I would think that's probably OK for a small low revving motor Barry, if that's what the builder put in it should suffice. A quick check would be to run flat out and then open the bay to see if the engine speeds up at all, if the motor is being starved then it should. If you feel the heat build up in the bay is a bit too much you could always fit a bilge blower on a temp switch.

Link to comment
Share on other sites

When we bought our boat, Barry, there was no ventilation at all. Being a mid mounted engine, the air was drawn from the bilge. The first thing I did was refitted the crankcase breather to the air filter to help reduce the smell of engine in the boat, and then cut a hole through the hull and fitted a vent approx 8" x 3". No problems at all, and no smells now either.

Link to comment
Share on other sites

When we bought our boat, Barry, there was no ventilation at all. Being a mid mounted engine, the air was drawn from the bilge. The first thing I did was refitted the crankcase breather to the air filter to help reduce the smell of engine in the boat, and then cut a hole through the hull and fitted a vent approx 8" x 3". No problems at all, and no smells now either.

I don't suppose it will do any harm to cut another hole in the hull, after all its about half inch thick anyway.

Link to comment
Share on other sites

I don't suppose it will do any harm to cut another hole in the hull, after all its about half inch thick anyway.

Just make sure that the hole is well above the waterline....

And remember its there if you ever tip the boat up on a mud flat.

Clive's disaster thread pointed out the perils of vents that get tipped below the tideline...

Martin

Link to comment
Share on other sites

Just make sure that the hole is well above the waterline....

And remember its there if you ever tip the boat up on a mud flat.

Clive's disaster thread pointed out the perils of vents that get tipped below the tideline...

Martin

Yes,Martin the current hole is well above the waterline and the only reason the water would reach it is if i'm sinking. :Stinky

Link to comment
Share on other sites

I don't suppose it will do any harm to cut another hole in the hull, after all its about half inch thick anyway.

I Can't see any harm either Barry, neither can I see the point until you have established the necessity to do so :grin: . You have not said what makes you think your motor is starved of air or any other reason why you might think it warrants it.

Link to comment
Share on other sites

I Can't see any harm either Barry, neither can I see the point until you have established the necessity to do so :grin: . You have not said what makes you think your motor is starved of air or any other reason why you might think it warrants it.

David there is a smell of diesel everytime i go to the boat (only in the rear cabin) but dissappears when i open the doors and windows.just thought it was lack of ventilation at the rear thats all.

Link to comment
Share on other sites

Hi Barry,

With your nice new engine installation I would not expect your engine bay to smell unless you had a diesel leak, check this first, it may just need a wash down if someone had a little slip changing the filters or bleeding the engine?

you only need half a thimble of diesel to make the boat smell..

Link to comment
Share on other sites

Hi Barry,

With your nice new engine installation I would not expect your engine bay to smell unless you had a diesel leak, check this first, it may just need a wash down if someone had a little slip changing the filters or bleeding the engine?

you only need half a thimble of diesel to make the boat smell..

Thanks Clive i'll have a look.but i think when it was in hire the batteries went flat so the auto bilge pump did not come on so the bilges filled up with oil and water from the old leaking engine,then when the batteries were recharged the oil was left stuck to the bilge sides so creating a smell. have been using Bilgex to try and make the smell fresher.

change of post thread to,

like your project coming on nicely cannot believe how much work has been done expect your looking forward to the first voyage next year.expect a lot of people will be taking pictures on the launch trip. :party2::party2::party2:

Link to comment
Share on other sites

cheers Barry,

they are (were) getting on well,two chippies on there now, they only have tomorrow left to work on it before getting on with work in the shed, though it is just the electrics which need doing now to make her operational and they will get done soon anyway. :dance

Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Guest
Reply to this topic...

×   Pasted as rich text.   Restore formatting

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

  • NBN Mobile App

  • Our Sponsors

    Norfolk Broads Network is run by volunteers - You can help us run it by making a donation

×
×
  • Create New...

Important Information

For details of our Guidelines, please take a look at the Terms of Use here.