View Full Version : part #s for exhaust flaps?

09-07-2010, 09:40 AM
03 LSV
part # and any idea where to buy online?

the rubber flaps that cover the exhaust under the swim deck came off this weekend. well one did, the other is on its last leg.:(

09-07-2010, 11:06 AM
try your local dealer if you have one. you need to buy a set of 4" exhaust flappers. pretty basic stock item. save the one you take off. you then need to cut the round part that the hose clamp clamps down to 3.5".
I saw prices that ranged from $29-45 for a pair online. went to my local dealer(actually mastercraft dealer cause they were closer) and bought a pair for $28 plus tax.

once you open the new 4" one and take the old 3.5" one off, you will see how to cut/install it.. make sure you use the correct hoseclamp, not the 4" ones that come with the new ones :)


09-07-2010, 12:02 PM
so the pipe is 3.5"
why dont they just sell 3.5" that fit?

09-07-2010, 12:27 PM
they only make the flappers in 3" and 4". skiers has opted to use a 3.5" pipe. not sure why, but interestingly enough you look at a $75k brand new launch24ssv and it's the same way.

it's real easy to cut it down and get it to fit, and if you take a few minutes and make sure you have a good, sharp utility knife, you can really make it look like it's a 3.5" piece from distances more than a foot away..

One of the many small things that should be changed, however I am sure that with the state of business, guess I'd rather see engineers working on the "big" things..

09-07-2010, 12:29 PM
oh ya, and when cutting it, I got the best results cutting at the bottom of the clamped part, not up near where the flapper is molded to the mounting ring. you don't have to modify the flapper part at all, and it is easier to install with the wakeplate all the way down. gives you a little more room to work. adjust it before crawling under the swimdeck in the garage :)

09-09-2010, 03:11 PM
these were the best deals i could find online

$15 shipping

$12 shipping

i ordered from the binnacle site and it came to $35 shipped for the pair

09-09-2010, 05:10 PM
not a bad price. good luck with the repair....

09-09-2010, 05:38 PM
so the pipe is 3.5"
why dont they just sell 3.5" that fit?

Because this technology is as old as a set of points and condenser. I get mine at a local Marine Dealer (keep in mind I am surrounded by thousands of offshore boats here) and that is the way they always came and it is an accepted and standard practice to "cut to fit" whatever you are putting them on. I also didn't pay much for them at all, I believe it was less than 10 bucks each and they have a funny name for them but I forgot it.

09-10-2010, 07:36 AM
they have a funny name for them but I forgot it.

The "water shutters" are located right next to the muffler bearings :)

09-10-2010, 11:38 AM
In the platform oil aisle.

09-10-2010, 03:00 PM
right next to the blinker fluid for your led taillights

09-10-2010, 03:44 PM
Where exactly is the dipstick to check the blinker fluid?

09-10-2010, 03:44 PM
Wait! I know. Look in a mirror and you'll see the dipstick right there.

09-10-2010, 04:50 PM
anyone who needs to ask where the blinker fluid goes shouldn't be working on a boat..
I'm just getting around to doing some work on mine...

first off, need to replace the A Round Tuit:

then time to get out the elbow grease

pull out the handy Left Handed Metric Screwdriver...

and replace me some fluids under the 710 cap....

09-11-2010, 08:31 AM
Seems like I've been trying to get A Round Tuit forever.