Yanmar engine cover paint needed

[nzfisher]

I hope to get both covers off my R25sc this year to repaint them. They are rusting around the edges near the turbo. They are also deteriorating where they contact the aluminum(?) covered insulation on the engine hatch. I am not surprised about the deterioration around the sharp edges. Paint will not adhere to a sharp edge- the edges need to be radiused for any hope of paint to last especially if the cover(s) have been removed. Mild rant aside I now need to find a west coast source other than a dealer for matching paint. Has anyone had any luck finding suitable matching paint? In addition has anyone been able to get the starboard side engine cover off? Is there a secret handshake involved?

 

[knotflying]

Try this link http://shop.toadmarinesupply.com/ma...+Grey+Engine+Paint+-+12+oz+can&sectionid=5160

 

[Osprey]

I have had both engine covers off my 4BY180. I have always pulled the port side then the starboard. The bolts on the stern end are in plain sight. However the bolts (10mm) on the front end are not. You need to reach down the front end a few inches and feel around for the heads of 2 bolts each side, 4 in total. These bolts need only be slacked off as they hold down slotted cover sections. One further step for the starboard side is to free the rubber oil filler cap boot. The boot edge are slotted onto the cover and are easily eased off. Note that getting the boot edges re-installed can be a pain!

 

[nzfisher]

I have had both engine covers off my 4BY180. I have always pulled the port side then the starboard. The bolts on the stern end are in plain sight. However the bolts (10mm) on the front end are not. You need to reach down the front end a few inches and feel around for the heads of 2 bolts each side, 4 in total. These bolts need only be slacked off as they hold down slotted cover sections. One further step for the starboard side is to free the rubber oil filler cap boot. The boot edge are slotted onto the cover and are easily eased off. Note that getting the boot edges re-installed can be a pain!

I have taken all the bolts out and the oil flap, (pretty straightforward), removed the port side, the oil cup etc., yet still cannot cycle the starboard side cover to where it can be removed. My Yanmar mechanic was unable to remove it as well when he checked the injectors for the factory service. Was hoping for some trick that R25 users know. The position of the engine relative to the hatch must be different from the R27-

Thanks to Knotflying for the link on the paint. I am checking out powder coating first but will probably end up with paint due to cost.

 

[Brian B]

I've had mine completly off by going to the port side on the 25SC, it is a tight fit. Anything mounted on the port bulkhead you could remove to gain an extra inch or two?

 

[nzfisher]

Thanks for all suggestions. I found a paint that is a dead match for the Yanmar engine color. The paint came from Advanced Auto Parts (chain) DE 1611 New Ford Grey. It is a ceramic body in a solvent propellant (needs adequate ventilation) created for high temperature applications. Unfortunately I was only able to find spray cans, not quarts-$6.99 per can.

I was able to remove the engine cover by sliding it to the port side after notching the starboard side lip about 2 x 1 inches on the forward end on my R25sc. In my opinion it is not possible to remove without notching or removing time consuming and difficult to remove engine parts. The rust and corrosion accumulation at the turbo end of the cover and near the coolant cap infill was quite substantial. I am in the process of sanding down to bar metal for a recoat. I think that if I didn't do this the life of the part would be maybe another 2-3 years before complete failure. From the cost of other parts from Yanmar I would guess this part (maybe they are only sold as pairs) would probably be $1500.-2000.00. I suspect my boat is not the only one with rust/ corrosion occurring at these areas of the cover as all of the machined/cut edges are square and paint is particularly prone to failure at these locations. Not a bad idea to check this when you do your yearly maintenance.