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Muffs question
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Author:  PDACPA [ Tue May 04, 2010 12:11 pm ]
Post subject:  Muffs question

I keep reading of everyone using "muffs" to fire the engine out of the water. I have the Volvo 4.3 SX (190hp) and there is a garden hose connector on the starboard size. I usually connect the garden hose to it...let it run water through and it runs out on both sides of the lower portion of the stern drive. I fire the engine and make sure all is running before heading out.

Am I missing something or not doing something correctly as I have no muffs?

Author:  fbusse [ Tue May 04, 2010 12:26 pm ]
Post subject:  Re: Muffs question

The garden hose connector replaces the muffs and much easier imo.

Author:  PDACPA [ Tue May 04, 2010 1:46 pm ]
Post subject:  Re: Muffs question

Whew! Thanks

Was afraid i was doing something wrong. Yeah its easy as can be. I like to throw it on before heading to the ramp to make sure it fires. Leave the hose out and its ready for clean up when back home.

Author:  Graham R [ Tue May 04, 2010 4:12 pm ]
Post subject:  Re: Muffs question

There were two types of VP flush connectors/ pipework; they changed around 2002/ 2003 ! The later type can be used with the engine running. If the hose attachment connects to a T ( or Y) piece on the inlet hose to the raw water pump, it is the later type.

Graham

Author:  EvilZ [ Tue May 04, 2010 5:45 pm ]
Post subject:  Re: Muffs question

My '02 has a label which states that it is only to be used with the engine off.

Important for you to figure out which set-up you have.....

Author:  Aussie_Horizon_190 [ Tue May 04, 2010 7:31 pm ]
Post subject:  Re: Muffs question

Using muffs solves any indecision!! My FW dealer told me to use muffs when I bought the boat so always have - real simple. There was also some issue if I recall about making sure you tigned up the plug for the hose fitting without overtightening.

Author:  230 Mike [ Tue May 04, 2010 10:06 pm ]
Post subject:  Re: Muffs question

If you don't make a good seal when putting the cap back on, air will be sucked into the system. Air doesn't cool very well...

Author:  Kvou812 [ Tue May 04, 2010 11:23 pm ]
Post subject:  Re: Muffs question

Yep, the instructions just say to tighten it snug, then give it another half turn or so with a wrench to make sure it won't come loose and suck in air. If you have one and start running hot, might be the first thing you check :wink:

Author:  Graham R [ Wed May 05, 2010 1:55 am ]
Post subject:  Re: Muffs question

I have removed the fitting at the end of the hose on mine and replaced it with a ball valve and a male quick release coupling. That is normally capped with a blank female quick release coupling ( using the original cap retainer so it's not lost when removed/ flushing the engine). Secure and no chance of air getting in under normal running conditions.

Graham

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