Optimax 115, 4 years stop

[Karoud]

Hello everyone
I just made a service for Optimax 115, about 4 years not running, by adding bad fuel mixed with dirt, remove an old fuel pumps was not work and remove a fuel rail

Fuel pumps from ( fuel dump company low and high pressure)
Rail from ( mercury )
Spark from (NGK)

I Just Clean separate, pipes, injectors

After starting the engine it's work roughly

This is a recording engine issue

https://youtu.be/PhRcQuyQEn4

By the way this engine still new, 20 minute working time

Regards

 

[Karoud]

Hello
Some people told me it's fuel pressure issue
I called mercury technition to test fuel pressure

Regards

 

[Docksidemarineservices]

Send all the injectors out for service. You cannot clean them with out the correct equipment.

 

[Karoud]

Yes it's cleaned

 

[Docksidemarineservices]

How were they cleaned?

 

[Karoud]

Using injector cleaning machine

 

[Karoud]

How were they cleaned?

Disambled the rails

FUEL regulator with cup, spring and rail
AIR regulator with spring and rail
AFTER searching by google only 6 cylinder pictures i got it

All regulators with cups and some with rings

 

[Karoud]

I thing it's missed part thats make the engine is rough working

 

[Karoud]

Hello every one
After many times trying to figure out the problem, it's missed part from the last owner that was Cup of the Air rail

 

[Karoud]

Before
https://m.youtube.com/watch?v=PhRcQuyQEn4

After
https://m.youtube.com/watch?v=USpWLlC_OVk