Long delay when going into gear with EDC control

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crazy4557

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When I put the starboard engine into either forward or reverse there is a long delay of around 3 seconds before the props turn. On the port engine it's fine and that engine makes the normal 'under load' slight rev up but the starboard engine just glides into gear without that under load rev up.

Anyone know the reason and is it a straightforward re calibration or something similar?

My engines are 74p's on shafts.
 
[Guesswork warning] Sticky cable perhaps? What happens if you disconnect the cable from the linear actuator and shift in and out of gear by hand (by pulling the cable)?
 
I also have that delay but on both engines (tamd75's) so have just learned to live with it. It would be nice to have them engage more swiftly though so also interested if someone knows how to achieve this.
 
jimmy_the_builder said:
[Guesswork warning] Sticky cable perhaps? What happens if you disconnect the cable from the linear actuator and shift in and out of gear by hand (by pulling the cable)?
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No actuator, no shift cables on this one Jimmy, it has direct solenoids on the gearbox.

Andy, recalibrate the levers, though I've done this many times on your boat when the EDC problems occur to get the engines started, I'd say there is something else that's causing these issues like corroded wiring in the looms.
 
volvopaul said:
No actuator, no shift cables on this one Jimmy, it has direct solenoids on the gearbox.

Andy, recalibrate the levers, though I've done this many times on your boat when the EDC problems occur to get the engines started, I'd say there is something else that's causing these issues like corroded wiring in the looms.
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Aha thanks for that Paul, i didnt know. I did say it was guesswork! :D
 
I had a similar problem but my boat has out drives, so likely a different scenario as you are on shafts. Unfortunately in my case it meant new clutch cone/ shoe thingy's which was rather expensive...:(
 
Standard EDC control setup from what I know. Never seen another version for boats late nineties/early noughties. Was you switch sticking momentarily?
 
crazy4557 said:
Standard EDC control setup from what I know. Never seen another version for boats late nineties/early noughties. Was you switch sticking momentarily?
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There is confusion here between edc/ evc , cable shift with actuator and standard edc shift direct to gearbox.

No micro switch or actuator on your andy.
 
You can check if it's a EDC fault or a mechanical fault by selecting gear manually at the solenoid with the engine running. My thoughts are that it will be a mechanical fault with the valve. These can be swapped with the other one easily.
 
aquatom said:
You can check if it's a EDC fault or a mechanical fault by selecting gear manually at the solenoid with the engine running. My thoughts are that it will be a mechanical fault with the valve. These can be swapped with the other one easily.
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Hi Andy, I'm guessing Vp has given you the answer here but on my P38, (TamD 63s') I was able to recalibrate the delay down to 1/2 a second from about 2 secs. The iffy point for you is the fact that only one prop has the delay.

Swapping solenoids over, recalibration has to be worth a try.:encouragement:

RR
 
OK so I've been able to identify what the problem is, the gearbox oil is leaking hence not enough oil in the gearbox to allow it to engage gear with the normal pressure. I topped up the gearbox with 2 litres of oil and it worked perfectly. :cool:
I have oil mixed with water coming out the exhaust leaving a trail so my thoughts are the new gearbox oil cooler has a leak? Is there any other potential exit route for gearbox oil other than through the cooler? The bilge is clean and no obvious signs of an oil leak.
I'm going to have the oil cooler pressure tested this week but just looking for other potential sources.
 
scubaman said:
I also have that delay but on both engines (tamd75's) so have just learned to live with it. It would be nice to have them engage more swiftly though so also interested if someone knows how to achieve this.
Click to expand...

I had the gearbox actuator rebuilt and this cured my previous delay on that particular engine, but that has nothing to do with the issue above. I now have both gearboxes engaging simultaneously for the first time.
I used MIT Transmissions and Paul Macey, recommended on here before, was superb..

Scubaman, maybe think about doing the same over the winter. The actuators are very easy to remove and refit..
 
crazy4557 said:
I had the gearbox actuator rebuilt and this cured my previous delay on that particular engine, but that has nothing to do with the issue above. I now have both gearboxes engaging simultaneously for the first time.
I used MIT Transmissions and Paul Macey, recommended on here before, was superb..

Scubaman, maybe think about doing the same over the winter. The actuators are very easy to remove and refit..
Click to expand...

Thanks for the tip! I'll have a closer look at the actuators and see if that might be a job for next winter.

Good to hear that you've found the cause and will probably also find a cure to your issue.
 
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