does a full load test not run the same rpms as what wot is supposed to be for a 225? im asking cuz im having issues with mine and watching videos trying to figure out what could be wrong with mine cuz i just spent $4k at the shop on it but it still didnt get the issue fixed
Your Merc Opti max mechanic. (Which there is no such thing) is wrong. I'm certified Merc mechanic (all Mercury engines!) and factory specs call for 90 to 100 psi compression test. Not to deviate more than 15 psi between cylinders. This 225 is fine at 90psi will last for years!
@@SF-rl7hl Thank you for this information... appreciate it. I think the merc dealer in my area tested mine a few years back and told me my 300xs was good and had 135 psi. I was surprised. I think I checked it and it was around 100. With two different gauges. I think I even borrowed another one because I couldn't understand how the dealer mechanic was getting 135. Makes me wonder if he even checked it and was just throwing a number out there. It's low hours, well maintained, so what you say is normal makes sense and give peace of mind. Thx
Even pressures mean the motor doesn’t have any problems. 90 is really low and needs new piston rings at least. Should be above 120 and 150 usually new. Some are 200
Not true necessarily. The Optimax diagnostic guide states that healthy compression is 90-110 PSI with no more than a 15 PSI variance. That motor is 21 years old. The compression isn't going to be perfect.
Who are these idiots on youtube? The old 2000 Merc optimax 225 -250 are not high compression engines. They are just not built that way. A brand new out box 2001 Merc 225 optimax compression was 100-110 max. With zero No hrs.
![[TH] 2024 PMSL SEA W2D3 | Fall | ถ้าเล่นไม่ดี ไปแก้ตัววันเสาร์](http://i.ytimg.com/vi/CTmci32hvP8/mqdefault.jpg)
3:20 love that sound...
does a full load test not run the same rpms as what wot is supposed to be for a 225? im asking cuz im having issues with mine and watching videos trying to figure out what could be wrong with mine cuz i just spent $4k at the shop on it but it still didnt get the issue fixed
A good Merc Opti mechanic just told me a good condition will have 120-125 psi.
That Optimax sounds like crap.
@@michael3343 not even new
Your Merc Opti max mechanic. (Which there is no such thing) is wrong. I'm certified Merc mechanic (all Mercury engines!) and factory specs call for 90 to 100 psi compression test. Not to deviate more than 15 psi between cylinders. This 225 is fine at 90psi will last for years!
@@SF-rl7hl Thank you for this information... appreciate it. I think the merc dealer in my area tested mine a few years back and told me my 300xs was good and had 135 psi. I was surprised. I think I checked it and it was around 100. With two different gauges. I think I even borrowed another one because I couldn't understand how the dealer mechanic was getting 135. Makes me wonder if he even checked it and was just throwing a number out there.
It's low hours, well maintained, so what you say is normal makes sense and give peace of mind. Thx
That is exactly what I get on mine.
hola .. tengo un johonson ocean runer 225 2t con 95 de comprecion x cilindro .cual seria la comprecion ideal para ese motor, gracias amigos
Te lo puedes comer con esa comprecion
Even pressures mean the motor doesn’t have any problems. 90 is really low and needs new piston rings at least. Should be above 120 and 150 usually new. Some are 200
Not true necessarily. The Optimax diagnostic guide states that healthy compression is 90-110 PSI with no more than a 15 PSI variance. That motor is 21 years old. The compression isn't going to be perfect.
Who are these idiots on youtube? The old 2000 Merc optimax 225 -250 are not high compression engines. They are just not built that way. A brand new out box 2001 Merc 225 optimax compression was 100-110 max. With zero No hrs.
PUT THE COWL ON WITH IT IT SOUNDS LIKE SHIT WHEN THEY COWL IS NOT ON
A 30" shaft tells me one thing. 1 SALT WATER, period...
You are an idiot!