RPM Problems with Sea Ray 420 sedan bridge....

[Sergio Bravo]

HELLO EVERY ONE !!

For any one could assist me in this....

My SeaRay 420 Sedan Bridge just do not go more than 1500 rpm... both engines when hey are with charge.
Both engines go up to 2650 rpm (normal) when hey are not with charge. ("Prueba en vacìo").

I have checkd, oil, filters, inyectors, air intake turbos, .. and found no mechanical probems.

Now I`m checking the electrical sistem but I DONT HAVE he information about this instalation.
Any one have the electrical diagrams? for a similar instalation?.

The control morse system is Mercury, with teleflex morse...

THIS PROBLEM started after I repair one of the engines because a mechanical problem (high temperature) change one exhaust multiple.

Regards for your time.

Sergio Bavo

sergioslavko@yahoo.com

 

[BonBini]

Both engines will run up to 2650 rpm (full throttle no load/charge).

Both engines will run up 1500 rpm (full throttle loaded/charged)

Are you geting any black smoke from either engine?

... Ron

 

[katricol]

Are you getting lots of water out of your exhaust? Is your bottom very dirty?

 

[Sergio Bravo]

Thanks Bon Bini & Katricol...

Theres no smoke (black or white) when running.

Both engines will run up to 2650 rpm (full throttle no load/charge).

Both engines will run up 1500 rpm (full throttle loaded/charged)

Yes, thats the way it works rigth now.

Before the mechanical problem in one of the engines, both of them run up to 2650 full throttle loades/charged.

Bottom is clean...
have no problems with water level.

Check the INSITE PRO program and theres no alarms activated....

Please y regards or pay for the electrical isntalation diagram of this boat.

Sergio