300 ProMax or 300X What kind of problems have you had

Thought I would start a topic on if you owned or own a Mercury 300 pro max or 300x and how many problems or blown motors have you had ? I personaly have had the reeds replaced 3 times and the lower end 1x. Lets hear your stories. Good or Bad :)

I have an Evenrude 35. I know its not a 300 but it's still been a sweet motor. We call it old reliable because it's got 1500 hours on it and still works great. It's pushing my 28 Eliminator quite nicely. So far I have done 6 MPH on GPS but my Butt O Meter is thinking its done about 7.5 in good water and nice weather.

Boozer:
I have an Evenrude 35. I know its not a 300 but it's still been a sweet motor. We call it old reliable because it's got 1500 hours on it and still works great. It's pushing my 28 Eliminator quite nicely. So far I have done 6 MPH on GPS but my Butt O Meter is thinking its done about 7.5 in good water and nice weather. Boozer get back to your Dear Asshole thread!!!

Problems :confused: Yea now that you mention it the damn thing seems to be using a lot of oil! :(
Smokes too :confused:

Everyone I know who has one, Love's it!

looks like your getting all kinds of serious answers to your question there Mr. Screaming Pete :rolleyes: At 30 hours ours has been flawless, other than the choke arm vibrating off once(a 10mm wrench and some locktight fixed that!) allways starts right up, and idles perfect. Does use a ton of gas though :D I think the smartcraft gauge said something like 400 and something gallons sofar....at 2-3 bucks a gallon...ouch

by the way.....we are going out this weekend, you?

TOBTEK:
by the way.....we are going out this weekend, you? working on it!!

dual 300's with 45hrs and absolutely no issues.

jm2drvr:
dual 300's with 45hrs and absolutely no issues. Thanks guys keep them comming :)

Single X w/40 hrs. At 30, a sensor wire came loose shredding the alt. belt which had to be dealt with but other than that no complaints.

Just sold 25 Daytona twin Pro Maxs 612hrs on stbd motor still original powerhead! port only blew at 450 because it was packed full of sand and overheated.

BMaster, that is some great news to hear they lasted so long...

Boatmaster:
Just sold 25 Daytona twin Pro Maxs 612hrs on stbd motor still original powerhead! port only blew at 450 because it was packed full of sand and overheated. Bmaster that is very impressive, What oil did you run?

I had a ProMax 300 and well over 300 hrs with 0 problems, it's still running great in Texas. Now have the X and running great trouble free.
Have only run Merc Hi-Pro oil and AV gas. :)

Pardon my ignorance on this issue, but what exactly is the difference between the Pro Max and the 300x? I assume the 300x is the higher horsepower motor, but why? Thanks in advance.

[img]http://www.***boat.com/image_center/data/500/17PICT0076-med.JPG[/img]

[img]http://www.***boat.com/image_center/data/523/135cowling_003-med.jpg[/img]
its like "BLING" for your outboard :D

Killer man! jawdrop
You So-Cal guys sure put the $$$$ & work into the Paint on them cowls! Wow!

Rocket,
Toby actually painted that Blue one himself...he does some trick work. DCB did mine.
[ September 17, 2003, 03:41 PM: Message edited by: mbrown2 ]

Yes he does!
I wish there was somebody out here in the sticks that could paint half that good! Are guys all seem to have been trained by Earl Shrib or Macco! (However you spell those company's names, but you get the point)

TrailerparkTJ:
Pardon my ignorance on this issue, but what exactly is the difference between the Pro Max and the 300x? I assume the 300x is the higher horsepower motor, but why? Thanks in advance. The 300X has about 50 more HP and rev's another 1000 rpms.
On the same boat, same setup, same prop, I ran 15mph faster with the X. :cool:

Rocket2003:
Yes he does!
I wish there was somebody out here in the sticks that could paint half that good! Are guys all seem to have been trained by Earl Shrib or Macco! (However you spell those company's names, but you get the point) Hmmmmmmmmmmmmmmmmmmm... idea box yours up,ship it out to Cali, I'll spray the crap out of it. Hopefully I will need to another for myself soon anyway wink

I was running the merc Hi-po oil. Smokes more than others, but the hours do not lie! The big difference between the Pro Max and the X is the Fuel injection and oil pump set up.

Tobtek I'll haveto bring mine back if i get out this weekend

Screaming Pete:
Tobtek I'll haveto bring mine back if i get out this weekend WE are going out sat after a photo shoot(engagement photos, not boat related), should be out on the river Sunday morning. MAYBE sat afternoon, But if you go lets hook up at the sandbar for a sunday beer.

Hi!
Blew a powerhead on my PM 300 after 225 hrs due to the crank was off balance. Got new on extended warranty. Now 100 hours on new powerhead. No problems.
Blew one Fleetmaster Lowerunit due to high propsetting. Swapped to Torquemaster. No problems since.
Have had some injector issues. Balanced them twice to get the proper plug readings.
Nice engine. Will buy a PM 300X next year or 2 x Merc 2.5 EFI's.
Cheeers, Toffen G

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