08 225 PRO XS wont run

[hemi1]

engine acted very sluggish on acell let off throttle died out
then would crank over fire and then cut off right away
had to get towed but kept trying to start all it did was stall as soon it fired.

[gambler4]

did you pull the cowling off and check the air compressor pully ? that is how mine acted when the compressor locked up and sheared the bolts off

[EuropeanAM]

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by gambler4 &raquo;</TD></TR><TR><TD CLASS="quote">did you pull the cowling off and check the air compressor pully ? that is how mine acted when the compressor locked up and sheared the bolts off</TD></TR></TABLE>

+1

Inspect to verify accessory drive belt (compressor belt) is intact, tight, etc.

No air pressure = little (or no) fuel pressure.

[hemi1]

that all feels ok if i push on the air pump pulley it moves a little but other then that belt is on.
it just will crank and then fire and die out as soon as it fires.

[EuropeanAM]

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by hemi1 &raquo;</TD></TR><TR><TD CLASS="quote">that all feels ok if i push on the air pump pulley it moves a little but other then that belt is on.
it just will crank and then fire and die out as soon as it fires.</TD></TR></TABLE>

Please redefine "move a little".

Might not be a bad idea to remove the belt, and spin the compressor BY HAND in a clockwise direction. You should be able to feel substantial resistance as the piston in the compressor comes up on the "compression" stroke, the pulley should not have lateral movement (and should not be able to be pulled "up and down" or "rocked" side to side.

Also listen for any sound in the compressor that resembles a "rattle" or grinding, especially at the bottom of the compression stroke.

[Cyncwby]

Just a question and not to rag on you........if it is the compressor do you use Merc Premium Plus oil?

[EuropeanAM]

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Cyncwby &raquo;</TD></TR><TR><TD CLASS="quote">Just a question and not to rag on you........if it is the compressor do you use Merc Premium Plus oil? </TD></TR></TABLE>

Interesting Question.......

However: Even though I recommend running ONLY the oil as recommended in the owner's manual, there doesn't appear to be any significant correlation between "a specific brand of oil" and "odds of compressor failure".

See this post to draw your own conclusions:

http://www.bbcboards.net...-used

[hemi1]

yes prem plus is all i have ever run when i had 06 opti i used dfi only i allways use
what merc says to use.
with the cowl off the pulley at air pump everytinng looks ok the pulley moves up and down if you rock it all the bolts look ok.does not seem to be making any noise.

[gambler4]

[EuropeanAM]

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by hemi1 &raquo;</TD></TR><TR><TD CLASS="quote">yes prem plus is all i have ever run when i had 06 opti i used dfi only i allways use
what merc says to use.
with the cowl off the pulley at air pump everytinng looks ok the pulley moves up and down if you rock it all the bolts look ok.does not seem to be making any noise.
</TD></TR></TABLE>

There should be "no discernable up and down movement" in the pulley.

I'm going to recommend that you see your local dealer for "hands-on" diagnostic techniques, to determine whether or not the compressor is the source of your problem.