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watercooled head
http://pilotodyssey.com/PO/viewtopic.php?f=26&t=16090
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Author:  canadian oddy [ Mon Oct 05, 2015 6:32 pm ]
Post subject:  Re: watercooled head

Current set up and works real well.

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Author:  Randman [ Mon Oct 05, 2015 6:33 pm ]
Post subject:  Re: watercooled head

Can you post pictures of your Ody's intake and exhaust?

Each and every Ody can be a little different on jetting so you will need a few main jets to find out which one is the right for your Engine's needs.

You mentioned picking up an air filter also so that will also effect your jetting. I would suggest having a 142, 145 and 148 main jet on hand.

AFTER THE PROPER HEAT CYCLES AND BREAK IN WITH THE NEW BORE AND PISTON.....

If you truly have no other modifications other than what you mentioned, start out with the 148. Go out and warm it up for at least 15 minutes then do some plug chops to see how she runs and what your plug looks like. Remember, start out way too rich and work your way down to the proper main jet. You are after a nice dark UPS truck brown coloring of your spark plug. Remember, jets and plugs are cheap! Start too fat and work your way down.

Rand

Author:  canadian oddy [ Mon Oct 05, 2015 6:39 pm ]
Post subject:  Re: watercooled head

By the way if you blow a u joint it will take out the shock. You need something like below, it called a shock saver. Chains with shrink tube over the top to keep them from slapping around. Works great.

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Author:  eshelton [ Mon Oct 05, 2015 7:46 pm ]
Post subject:  Re: watercooled head

So Canadian Oddy you running a water pump on that beast or what, and what head is that

Author:  canadian oddy [ Mon Oct 05, 2015 7:49 pm ]
Post subject:  Re: watercooled head

eshelton wrote:
So Canadian Oddy you running a water pump on that beast or what, and what head is that


Yes on the pump. It is a Mercedes pump and they are cheap. Can get a model number is you want it.
The head --- that's home made. Same as cylinder. I believe I post the link in an earlier part of this post.

Author:  eshelton [ Mon Oct 05, 2015 10:34 pm ]
Post subject:  Re: watercooled head

Well guys i appreciate all the info, if there is anything else feel free to add no matter how small.

Author:  eshelton [ Mon Oct 05, 2015 11:53 pm ]
Post subject:  Re: watercooled head

And yes id like the part number on the water pump.

Author:  Randman [ Mon Oct 05, 2015 11:56 pm ]
Post subject:  Re: watercooled head

Just do an ebay search for a Mercedes Benz auxiliary water pump. I'm running one also.

Rand

Author:  canadian oddy [ Tue Oct 06, 2015 12:18 am ]
Post subject:  Re: watercooled head

eshelton wrote:
And yes id like the part number on the water pump.


I looked and looked and can't find the part number but here is the pump I use. Purchased it from autotech USA Florida but you can get it anywhere. Like Rand said it's a Bosch aux water pump. They have a very low amp draw which is good because the oddy electrical system is weak.
http://www.amazon.ca/Bosch-0392020073-E ... B0049PLFGK

Author:  John l [ Tue Oct 06, 2015 5:16 am ]
Post subject:  Re: watercooled head

On that water pump how are you guys making the electrical connection? It looks like the terminals are pretty deep in that female recessed area. Are you able to get the plug somewhere? Are you guys mounting vertical? Horizontal? or does orientation matter?

Author:  Randman [ Tue Oct 06, 2015 10:46 am ]
Post subject:  Re: watercooled head

John l wrote:
On that water pump how are you guys making the electrical connection? It looks like the terminals are pretty deep in that female recessed area. Are you able to get the plug somewhere? Are you guys mounting vertical? Horizontal? or does orientation matter?

Electrical connection is dependent on which unit you purchase. Mine has 2 wires that protrude from the unit. Others have dual posts on the bottom that you can use female bayonet connectors and of course there are the units that require the plug to be installed on it. I would think that you could use a dremel tool to remove the plastic guard for the wires in order to access the male prongs on the bottom of the pump.

Orientation of the unit doesn't matter. Mine is mounted vertically and low enough so if it fails, you will still get a thermosiphon effect.

Rand

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Author:  eshelton [ Tue Oct 06, 2015 4:40 pm ]
Post subject:  Re: watercooled head

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Here is a pic of the latest piston

Author:  canadian oddy [ Tue Oct 06, 2015 4:53 pm ]
Post subject:  Re: watercooled head

eshelton wrote:
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Here is a pic of the latest piston


Check your mail box.
That's detonation !! Shitty fuel.
I see that the edge of the piston is "chipped" away and not melted.

Author:  Randman [ Tue Oct 06, 2015 5:42 pm ]
Post subject:  Re: watercooled head

We all ready know that your Ody was extremely under jetted (120 main when you should be running a 142 at minimum). I have seen this same thing happen to Ridindirty's Ody when the three way valve failed when he was pushing it hard in the dunes.

Rand

Author:  eshelton [ Tue Oct 06, 2015 5:48 pm ]
Post subject:  Re: watercooled head

Yelp underjetted, low octane and air filter junk. Im doing my homework and i appreciate all the help fellas

Author:  Randman [ Tue Oct 06, 2015 5:57 pm ]
Post subject:  Re: watercooled head

What octane fuel are you running?

Rand

Author:  eshelton [ Tue Oct 06, 2015 6:13 pm ]
Post subject:  Re: watercooled head

I believe i had 89. There is a station near me that has straight gasoline with no etholol, would that be better?

Author:  nitrosport_5 [ Tue Oct 06, 2015 6:42 pm ]
Post subject:  Re: watercooled head

eshelton wrote:
I believe i had 89. There is a station near me that has straight gasoline with no etholol, would that be better?


I use ethanol free fuel in all my toys whenever possible. Alot of the older rubber seals were never meant to withstand the ethanol and can accelerate the deterioration of orings and seals and even fuel lines. Especially when sitting for more than a month at a time I will add sta-bil to the fuel to help keep it from going bad. I have had very good luck with these practices. Not saying you will never have an issue doing this, just I have had great luck.

Author:  canadian oddy [ Tue Oct 06, 2015 6:54 pm ]
Post subject:  Re: watercooled head

eshelton wrote:
I believe i had 89. There is a station near me that has straight gasoline with no etholol, would that be better?


Ooooooh.
By the way your piston is not drilled -- another boo boo.

Author:  Randman [ Tue Oct 06, 2015 7:25 pm ]
Post subject:  Re: watercooled head

eshelton wrote:
I believe i had 89. There is a station near me that has straight gasoline with no etholol, would that be better?


Yes!

The Ody was designed to run on a fuel with a RON rating of 92 - 100.

92 RON translates to 87.5 to 91.50 U.S. octane rating. Personally I wouldn't run anything less than 91 octane and or course if you can get it without ethanol, by all means do so!

Rand

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