Does anyone know if the oil pressure transmitter for the gauge (not just the alarm) screws into the same port for the oil pressure alarm sender?
Can a DV 24 have both a pressure alarm sender and a pressure gauge sender wired?
Just bought a boat with a DV24 and it has an oil pressure gauge and a oil pressure alarm light. The oil pressure light works, but the gauge just goes to the end of the scale when powered up. It's hard to get to the back of the dash panel to see if the gauge is wired up.
The engine is leaking oil from an unknown location when running (not when idle) and I'm suspecting the oil pressure is too high.
I've also read bukhs have an oil breather under the rocker cover that can get blocked, leading to over-pressure. I haven't been able to find the oil breather in exploded diagrams of the motor. Does anyone know where it is?
Select to expand quotebendeac said..
Does anyone know if the oil pressure transmitter for the gauge (not just the alarm) screws into the same port for the oil pressure alarm sender?
Can a DV 24 have both a pressure alarm sender and a pressure gauge sender wired?
Just bought a boat with a DV24 and it has an oil pressure gauge and a oil pressure alarm light. The oil pressure light works, but the gauge just goes to the end of the scale when powered up. It's hard to get to the back of the dash panel to see if the gauge is wired up.
The engine is leaking oil from an unknown location when running (not when idle) and I'm suspecting the oil pressure is too high.
I've also read bukhs have an oil breather under the rocker cover that can get blocked, leading to over-pressure. I haven't been able to find the oil breather in exploded diagrams of the motor. Does anyone know where it is?
So I went through this recently with mine and I think if you look at the sender it has two Spade connections one of which is for the alarm and the other of which is for the gauge with the negative being provided by earthing of the screw thread to the motor. The spade connectors should be of slightly different sizes to differentiate which is which. Mine is leaky as well as was the unit in another boat that I inspected the same motor but I'm not quite sure where my leek is coming from. What kind of boat is yours in? Happy for you to p.m. me if you like.
Hi,
my DV24 has one oil pressure transmitter with one oil wire connected to it. From memory,,If this wire is removed from the pressure transmitter the gauge reads hard up scale but I don't think the alarm light comes on. There is a chance I will be on the boat today, I will check and get back to you.
As for the oil breather I have never noticed a breather coming from the rocker cover. If there was a breather there'd be fumes coming into the engine bay, maybe?? I think what is been referred to is the external oil line (about 6 to 8 mm) that runs at the front of the engine, sort of behind the flywheel to the rocker cap. I've read that it can block, although I cant see how.
Glen from Bukh at Taren Point has been very helpful to me in the past, perhaps a phone call or getting down for a service would be of value.
One more thing,,,,,, I once removed/replaced the flywheel, torqued it down as per spec. After restarting the engine it developed a god almighty knocking sound, I thought the bottom end of the engine was gone. Got Glen down, he had a look at the engine running, turns out there is a locating pin on the crankshaft boss that aligns with a locating hole in the flywheel. This pin can kick sideways sort of, especially if the pin or hole is a bit worn. On his advise I removed the pin, chucked it over the side and no more knocking sound. Before removing this pin when I looked at the flywheel spinning there was bugger all wobble in the flywheel. This issue took 1 hour to sort out, it may have taken me ages to sort out by myself, you cant beat someone with good product knowledge. I was happy to pay his bill.
Regards Mike
Very sorry about my previous advice regarding alarm plus gauge for oil pressure. How quickly we forget. That was the temperature gauge not the pressure gauge. Sorry
Ben,
I've given the wrong info too, my apologies.
My oil pressure sender has two wires connected to it, both brown, one thin and one thicker. Remove the thicker and the gauge goes hard up scale, disconnect the thin and nothing happens.
I had a look around the rocker cover and could not see any breather.
Regards Mike
Select to expand quotebendeac said..
Does anyone know if the oil pressure transmitter for the gauge (not just the alarm) screws into the same port for the oil pressure alarm sender?
Can a DV 24 have both a pressure alarm sender and a pressure gauge sender wired?
Just bought a boat with a DV24 and it has an oil pressure gauge and a oil pressure alarm light. The oil pressure light works, but the gauge just goes to the end of the scale when powered up. It's hard to get to the back of the dash panel to see if the gauge is wired up.
The engine is leaking oil from an unknown location when running (not when idle) and I'm suspecting the oil pressure is too high.
I've also read bukhs have an oil breather under the rocker cover that can get blocked, leading to over-pressure. I haven't been able to find the oil breather in exploded diagrams of the motor. Does anyone know where it is?
Is the oil leak on flywheel end or gearbox end? Or dripping off sump? If on flywheel end you would likely see oil sprayed everywhere.
They are a bugger to find, again speaking with Taren Point, their suggestion was that there are some small orings/gaskets near fuel pump assembly that are a common oil leak area, or seal between motor/gearbox on drive shaft (little harder). Seal $$ weren't too bad from memory....for Bukh anyway.
Clean it all down, and dust baby powder over motor, fast way to find the source....I never wanted to clean up the baby powder so gave it a miss.
I stopped a minor leak by nipping up the sump bolts, however never found the other main leak....is it the gearbox oil? give it a smell and check colour...
Re: oil breather, I think you mean the oil excess pressure valve, its on LHS behind flywheel (looking at flywheel) from memory, just looks like a 13mm bolt, a bugger to get to when the motor is reverse mounted, and hard to remove the piston below spring (think i used a ezi-out screw remover as piston has a hollow end). I checked mine, couldn't see right down for blockages, however poked around, seemed clear, but still leaked oil. You can add a additional copper washer/gasket to decrease spring pressure....I didn't try this...maybe try? Process is described in Manual page 125 - Lubricating System of Workshop manual..Bukh website
