Jump to content

Welcome to TheMalibuCrew!

As a guest, you are welcome to poke around and view the majority of the content that we have to offer, but in order to post, search, contact members, and get full use out of the website you will need to Register for an Account. It's free and it's easy, so don't hesitate to join the TheMalibuCrew Family today!

Hammerhead 383 winterization


Recommended Posts

Can anyone please help me to find Hammerhead 383 winterization instructions. Most importantly i need to know where the plugs to drain water are located. My boat also has a heater and shower. Do i need to winterize them too?

Thanks for your help.

Link to comment
Can anyone please help me to find Hammerhead 383 winterization instructions. Most importantly i need to know where the plugs to drain water are located. My boat also has a heater and shower. Do i need to winterize them too?

Thanks for your help.

do a search you can find it

first add fuel stabilizer ,warm motor, fog,drain oil,change filter, add new oil,change tranny fluid two spots tranny and v -drive

on each side of the motor remove the knock sensors and plugs then drain

uncouple the hose type connection under the motor drain

undo hose connections at water pump and tranny cooler screen

clean tranny screen

remove hose at inlet by tranny

the heater cold is located by the tranny cooler screen so it should have drained we you undid the hose at the pump

the hot is located on the passenger side top rear of motor undo and blow air through the line( be easy) to remove water from the heater core

shower at the mixing valve undo the three screw connections and drain, blow air through center line to remove water from pump

wipe down motor with wd-40 or other protectent

if you need more help pm me walk you through it

i have same engine

Link to comment
Can anyone please help me to find Hammerhead 383 winterization instructions. Most importantly i need to know where the plugs to drain water are located. My boat also has a heater and shower. Do i need to winterize them too?

Thanks for your help.

On mine:

1. 2 drain points in the block each side of the engine located by looking under the manifolds for the knock sensor wires. Unclip the connectors and remove both of the knock sensors. Make sure water flows from both of these.

2. Under the header there is a hose that runs around the back of the engine and connects to a similar hose coming from underneath the other header. They are connected by a coupling that looks like a garden hose fitting. Undo this and water should flow out.

3. Heater. On mine (no shower yet fitted), 2 hoses go forward from the engine on the drivers side into the compartment in front of the engine. Follow one of these back to the engine block. It should connect right behind the water pump. The other hose should return to the output side of the impellor mounted on the front of the engine. Disconnect the outlet side hose from the impellor and the engine connected heater hose. Blow into the heater hose and blow all of the water out of the heater core. This takes a bit of effort. I also crank the engine to expel the water in the impellor. For long term storage I remove the impellor.

4. Shower. Don't have one but I would guess you have to diconnect the lines that go back to it and blow the water out and then clear the water out of the hose and pump after the mixer valves at the back of the boat. The is a good DIY fix for using a shower for winterizing the shower and heater in the mods section of this site.

I hope this helps. Its kind of quick and dirty but it sounds like you needed help pretty fast here. I am sure someone else here has a better and maybe illustrated set of instructions. If anybody thinks its needed I could try and put something together with pictures.

Looks like my malibu posted instructions as I was putting these down. Hopefully you have all the info you need to do this.

Edited by colobuskier
Link to comment

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

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.

×
×
  • Create New...