Sorry, one more 1992 250 hp v8 question

[justinhip]

As I have time to check this motor out, yesterday I gave the flywheel a tug hoping it was not seized. I was not and got it around on a compression stroke and was able to muscle it around. Is this typical of this motor or should it be much tighter? I have seen mention of them being low compression. oh, the plugs were in.<br />Thanks

 

[Dhadley]

Re: Sorry, one more 1992 250 hp v8 question

With your strength I'm not surprised you can turn it over by hand!<br /><br />Seriously, that's fine. You should be able to roll it up to compression and then thru. As long as the compression is fairly even on the gauge you're good to go.

 

[justinhip]

Re: Sorry, one more 1992 250 hp v8 question

cool, I will check the compression although I am not sure I really want to know. A buddy of mine used to play with Mercs and he said they were tight so it got my wheels turning. At this point I am hoping this motor is not too good to be true.<br />Everything under the powerhead cover appears to be in good shape, clean, no rust or grime so I am keeping my fingers crossed.<br />Thanks

 

[Dhadley]

Re: Sorry, one more 1992 250 hp v8 question

There are some things to keep in mind about 2 strokes and compression. A lower static number doesn't mean its weaker or has less compression ratio. Higher exhaust port timing usually improves a 2 stroke's torque but lowers the static number. <br /><br />A 200 crossflow may have higher static compression than a 200 looper but it's never gonna have the strength of a looper. I'd expect the stock V8 to have static compression of about 95 or so. Depends on what heads are on it.

 

[justinhip]

Re: Sorry, one more 1992 250 hp v8 question

Is my engine a crossflow or a looper? I really don't know the difference. I know car engines but not two strokes.

 

[Fl_Richard]

Re: Sorry, one more 1992 250 hp v8 question

Loopers have power trim switches on the port side of the engine. Crossflows on the starboard.<br /><br />If I'm wrong someone will holler

 

[justinhip]

Re: Sorry, one more 1992 250 hp v8 question

thanks, I think mine is a crossflow because its on the Starboard side

 

[Dhadley]

Re: Sorry, one more 1992 250 hp v8 question

No, your V8 is a 90* looper. They never made a recreational crossflow V8. I think where that button thing got started was the 60* loopers have the button on the port side.

 

[Fl_Richard]

Re: Sorry, one more 1992 250 hp v8 question

See... told ya!! <br /><br />--- Thanks DH