<![CDATA[Offshoreonly.com - General Q & A]]> http://www.offshoreonly.com/forums NO CLASSIFIEDS PLEASE!! en Fri, 20 Nov 2009 22:56:51 GMT vBulletin 60 http://www.offshoreonly.com/forums/images/misc/rss.jpg <![CDATA[Offshoreonly.com - General Q & A]]> http://www.offshoreonly.com/forums Throttle lever adjustment problems http://www.offshoreonly.com/forums/general-q/220303-throttle-lever-adjustment-problems.html Fri, 20 Nov 2009 21:37:53 GMT I replaced my Holley carbs with Sea Demon carbs and am having trouble adjusting the throttle lever throw. When the Holley carb was installed I had maybe 65-70deg. of throw (from all the way back to wide open), but am now only getting about ½ the throw with the Sea Deamon carb. The throttle... I replaced my Holley carbs with Sea Demon carbs and am having trouble adjusting the throttle lever throw.

When the Holley carb was installed I had maybe 65-70deg. of throw (from all the way back to wide open), but am now only getting about ½ the throw with the Sea Deamon carb.

The throttle levers are Kiekhaefer Zero Effort Controls.

I was under the impression I would retain the same throttle lever throw with some minor adjustment of the cable. I tried adjusting both ends of the throttle cable, but to no avail. Is the lever on the carb too short, or am I overlooking something very simple here?

All replies are appreciated, Thanks!
-B ]]> bpp944 http://www.offshoreonly.com/forums/general-q/220303-throttle-lever-adjustment-problems.html Identifying heads http://www.offshoreonly.com/forums/general-q/220302-identifying-heads.html Fri, 20 Nov 2009 20:39:47 GMT Have a pair of BBC 454 oval port heads. How can I tell if they are the large ports or small ports and if they have the large or small valves? Have a pair of BBC 454 oval port heads. How can I tell if they are the large ports or small ports and if they have the large or small valves? ]]> CN24 http://www.offshoreonly.com/forums/general-q/220302-identifying-heads.html 496 antifrezze gone http://www.offshoreonly.com/forums/general-q/220283-496-antifrezze-gone.html Fri, 20 Nov 2009 13:24:22 GMT I took the boat out to winterize in October checked the port motor it was downabout a quart of antifreeze.I topped it off did full winterized.I went to take the batteries out yesterday and noticed the antifreeze is gone except a 1/4 '' in the bottom of the tank I checked the oil its still on the full line not over but the oil did seem a little thicker ten the starboard side. couldn't see any in the bildge the plugs are out for draining any suggestions Pleaseeeeeeeee ]]> sonic28 http://www.offshoreonly.com/forums/general-q/220283-496-antifrezze-gone.html <![CDATA[47'cat hull on ebay]]> http://www.offshoreonly.com/forums/general-q/220244-47cat-hull-ebay.html Thu, 19 Nov 2009 13:55:04 GMT There was a 47'cat bare hull on ebay a while back .Does anyone knows who owns it or how to get in touch with the owner.It was in floridia.It was 13,000 I believe.It was white bare hull. mangler0075@aol.com Thanks JOHN ]]> Fenderjack http://www.offshoreonly.com/forums/general-q/220244-47cat-hull-ebay.html 598 CI supercharge what is the best compression? http://www.offshoreonly.com/forums/general-q/220212-598-ci-supercharge-what-best-compression.html Thu, 19 Nov 2009 02:44:17 GMT any help would be appreciated building fresh 598SuperCharged intercoolded i would like to know if I could get a low compression piston like 6.5:1 7.0:1 or maybe 7.5:1 so i could safely run 10-14 pounds of boost on pump gas with steel heads. would this set up work I have 14-71 blower :evilb: any help would be appreciated building fresh 598SuperCharged intercoolded i would like to know if I could get a low compression piston like 6.5:1 7.0:1 or maybe 7.5:1 so i could safely run 10-14 pounds of boost on pump gas with steel heads. would this set up work I have 14-71 blower :evilb: ]]> sosatime http://www.offshoreonly.com/forums/general-q/220212-598-ci-supercharge-what-best-compression.html 350 chevy vortec??? http://www.offshoreonly.com/forums/general-q/220206-350-chevy-vortec.html Thu, 19 Nov 2009 00:37:28 GMT Just thought I would share my unhappy experience today. I granaided the engine in my plow truck, (96 chevy P.U.) recently. I rebuilt another engine that a friend had. The rebuild went fine and got the engine in the truck. I waited to prime the pump until after the engine was installed only to... Just thought I would share my unhappy experience today. I granaided the engine in my plow truck, (96 chevy P.U.) recently. I rebuilt another engine that a friend had. The rebuild went fine and got the engine in the truck. I waited to prime the pump until after the engine was installed only to find out that oil gooshed out the oil galley that I didn't plug in the top rear of the engine. Conveniently located half under the head near where the head, intake and block come together on the driver side. This really sucks and I can't believe I didn't catch this however I can see where it might be easily missed. I noticed this oil hole during the short block assm. and then completely forgot about it when installing the heads. Once the head was on you can only see about a 1/3rd of the hole. This is going to blow a whole day to fix this one.

I tried JB welding and it didn't hold. Any other IDEAS??? ]]> getrdunn http://www.offshoreonly.com/forums/general-q/220206-350-chevy-vortec.html 250 blower measurment http://www.offshoreonly.com/forums/general-q/220204-250-blower-measurment.html Wed, 18 Nov 2009 23:58:07 GMT anyone have the low profile 250 blowers on ther boats, if so can you get me a measurment from front part of block where you silacone the intake to ,up to bottom flange of carb. Thanks anyone have the low profile 250 blowers on ther boats, if so can you get me a measurment from front part of block where you silacone the intake to ,up to bottom flange of carb.

Thanks ]]> rssteiny http://www.offshoreonly.com/forums/general-q/220204-250-blower-measurment.html 1987 Python 24 ? http://www.offshoreonly.com/forums/general-q/220192-1987-python-24-a.html Wed, 18 Nov 2009 21:33:41 GMT Any input or opinions on this vintage? As far as quality or problem areas ? Single big block and 7' beam. Thanks
Steve. ]]> 6500steve54 http://www.offshoreonly.com/forums/general-q/220192-1987-python-24-a.html Upgrading to a performance cam in 454? http://www.offshoreonly.com/forums/general-q/220173-upgrading-performance-cam-454-a.html Wed, 18 Nov 2009 16:13:41 GMT I have a 24ft Chaparral with a factory 454 which has been modified with an inner cooler, ignition and 7lb supercharger by ProCharger. I need to say I am no expert on engines, and am curious if what all goes into changing cams. Is it as easy as replacing the cam, or do I need to change out many... I have a 24ft Chaparral with a factory 454 which has been modified with an inner cooler, ignition and 7lb supercharger by ProCharger. I need to say I am no expert on engines, and am curious if what all goes into changing cams. Is it as easy as replacing the cam, or do I need to change out many more parts on the engine. Also anyone have any idea of cost to put in a performance cam as well as troubles I may encounter. Is a performance cam harder on the engine etc? ]]> lilwigs http://www.offshoreonly.com/forums/general-q/220173-upgrading-performance-cam-454-a.html 502 Build??? Need advice!!! http://www.offshoreonly.com/forums/general-q/220165-502-build-need-advice.html Wed, 18 Nov 2009 13:31:47 GMT I purchased an complete 502 mpi Mag 1995 that needs to be reworked to replace my 310hp 454.

I want to keep EFI/MPI but pump the power up. Im figuring an 509ci, get headers, roller Cam kit & reprogram, Free flowing air filter. How much can i get?

Would like 500-575HP but from what I have read. Its about 500 max w/ efi unit? What about fuel rail/injectors? Whats the best performance header for salt water? Im no opposed to doing other mods just would like them to be worth the HP. ]]> powerquest208 http://www.offshoreonly.com/forums/general-q/220165-502-build-need-advice.html Do I have standard lower cases? http://www.offshoreonly.com/forums/general-q/220163-do-i-have-standard-lower-cases.html Wed, 18 Nov 2009 11:58:16 GMT I am thinking of selling my Mr. Gadgets upgraded Teague platinum drives and going with some of Imco's SCX drives and I am unsure of what lowers I have. I have 1.5 inch spacers, the measurement from the upper drive shaft to the prop shaft is 23.5" Are these standard lowers? Thanks in advance. Eric
Attached Images
File Type: jpg DCBDriveweb.jpg (199.3 KB)
]]> KYElimEagle http://www.offshoreonly.com/forums/general-q/220163-do-i-have-standard-lower-cases.html bravo 1 rebuild, pricing info please http://www.offshoreonly.com/forums/general-q/220160-bravo-1-rebuild-pricing-info-please.html Wed, 18 Nov 2009 09:44:29 GMT having my drive rebuilt. whats the real numbers price wise with all stock merc parts. just checking. thx, mark having my drive rebuilt. whats the real numbers price wise with all stock merc parts. just checking. thx, mark ]]> mookymonkey http://www.offshoreonly.com/forums/general-q/220160-bravo-1-rebuild-pricing-info-please.html 496ho Exhaust Manifold Gaskets http://www.offshoreonly.com/forums/general-q/220142-496ho-exhaust-manifold-gaskets.html Wed, 18 Nov 2009 00:13:07 GMT I need to replace the exhaust manifold gaskets on my 496 HO equipped with aluminum exhaust manifolds. Merc wants a small fortune for their gaskets. Does anyone have a comparable part number for say Felpro? Or is there some magic to the Mercruiser product. Also, what is the function of the... I need to replace the exhaust manifold gaskets on my 496 HO equipped with aluminum exhaust manifolds. Merc wants a small fortune for their gaskets. Does anyone have a comparable part number for say Felpro? Or is there some magic to the Mercruiser product. Also, what is the function of the turbulator and does it need to be there--appears to restrict the exhaust. Thanks... Bill ]]> goldeneyee http://www.offshoreonly.com/forums/general-q/220142-496ho-exhaust-manifold-gaskets.html The proper way to scatter an engine http://www.offshoreonly.com/forums/general-q/220133-proper-way-scatter-engine.html Tue, 17 Nov 2009 22:25:44 GMT I have seen some guys blow up their chit before, but this guys wins hands down.:lolhit: Never mind throwing a rod, he threw the whole engine. I have seen some guys blow up their chit before, but this guys wins hands down.:lolhit:
Never mind throwing a rod, he threw the whole engine.
Attached Files
File Type: wmv TRACTOR_BANG.wmv (4.72 MB)
]]> Young Performance http://www.offshoreonly.com/forums/general-q/220133-proper-way-scatter-engine.html Has anyone used a crank from Ohio Crankshaft? http://www.offshoreonly.com/forums/general-q/220118-has-anyone-used-crank-ohio-crankshaft.html Tue, 17 Nov 2009 18:26:17 GMT I am looking for any information on the company

I was looking at 4340 BBC 4.250" stroke crankshaft. Who makes it?

http://www.ohiocrank.com/chevybb_cranks.html ]]> 1BIGJIM http://www.offshoreonly.com/forums/general-q/220118-has-anyone-used-crank-ohio-crankshaft.html