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-   -   Merc. 500 HP info (https://www.offshoreonly.com/forums/general-q/198607-merc-500-hp-info.html)

hoff2483 11-11-2008 02:14 PM


Originally Posted by Griff (Post 2736616)
If that 33 OL is in even average condition with the 500HP's its a steal at that price. Figure another 10k for the trailer and to do the valve springs.

Yea I thought it looked like it could be a pretty good deal. I am waiting for a call from the individual selling it to get the whole background on the boat and hopefully I can go look at it this weekend. If everything checks out I think it may be worth it to buy it at the low price and just redo the springs right away before next summer.

Carder 11-11-2008 02:28 PM

If you are going to do the springs, consider Aluminum heads/springs, upgrade, etc. I ended up doing that and gained almost 100 hp in my HP 500's... better parts, now bullet proof, and the boat never ran stronger.
Tyler Crockett added the Dart Comp. CNC package for us.
CARDER

hoff2483 11-11-2008 02:32 PM


Originally Posted by Carder (Post 2736735)
If you are going to do the springs, consider Aluminum heads/springs, upgrade, etc. I ended up doing that and gained almost 100 hp in my HP 500's... better parts, now bullet proof, and the boat never ran stronger.
Tyler Crockett added the Dart Comp. CNC package for us.
CARDER

Awesome. Thank you so much. Everyone has been really helpful.

hoff2483 11-13-2008 05:10 PM

http://www.teamshogren.com/brokerage...-32-fever.html

http://cgi.ebay.com/ebaymotors/Boats...ayphotohosting

The first link will take you to an image of a HP 500 from a 1998 32 Fountain Fever and the second link will take you to an image from the '99 33 outlaw I am looking at (scroll down and click on the engine pic). It was mentioned that the hp500 had some problems with water reversion. Look how high the exhaust pipe comes up after the manifold on the baja compared to the fountain. Wouldn't this extra height create a higher potential risk for water reversion?

Griff 11-13-2008 05:42 PM


Originally Posted by hoff2483 (Post 2738974)
http://www.teamshogren.com/brokerage...-32-fever.html

http://cgi.ebay.com/ebaymotors/Boats...ayphotohosting

The first link will take you to an image of a HP 500 from a 1998 32 Fountain Fever and the second link will take you to an image from the '99 33 outlaw I am looking at (scroll down and click on the engine pic). It was mentioned that the hp500 had some problems with water reversion. Look how high the exhaust pipe comes up after the manifold on the baja compared to the fountain. Wouldn't this extra height create a higher potential risk for water reversion?


The taller riser prevents reversion. Water can't go up as easily because of the height. The risers on the Baja 500's are the newer version and better. Water is not actually introduced into the exhaust until about 2 inches before the rubber hose that connects the risers to the silent choice diverters. Its a water jacketed riser with holes inside at the end of the pipe.

hoff2483 11-13-2008 07:59 PM


Originally Posted by Griff (Post 2739004)
The taller riser prevents reversion. Water can't go up as easily because of the height. The risers on the Baja 500's are the newer version and better. Water is not actually introduced into the exhaust until about 2 inches before the rubber hose that connects the risers to the silent choice diverters. Its a water jacketed riser with holes inside at the end of the pipe.

Thanks a lot Griff. You have been very helpful.

augie58 11-13-2008 08:33 PM

You will want to research valve lifters are in the engine as engines with the "tie bar" arrangement will fail. After the tie bar fatigues and breaks the lifter turns sideways in it bore destroying the cam and lifter. Not to mention sending metal filings all thru the engine. Happened to me right around 300 hours.

There is an updated lifter retainer system, someone else will have to help you determine which style lifters the engine has.

cigrocket 11-14-2008 09:48 AM

The motors run great, get the valves done and looked at and then run them like you stole them. Tremendous reliable power. They often Dyno higher then rated. Great power

vette131 11-19-2008 04:21 AM

the valve springs can be changed without removing the heads but upgraded heads & cam will make that outlaw wake up.


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