Yanmar 43Y3-180

[johnw]

Greetings fellow boaters,
After spending 6 weeks in the Keys, the motor starting to display and gave off an alarm sound" High Boost Pressure" alarm on the Display about half way thru the trip. If I kept the motor under 14 MPH, all was fine,but any increase had the alarm and the display said configure OK? Full throttle would start to run rough after 14 MPH. Any thoughts of the situation?

Also, any advice to what trailer tires are the best and how often to they get replaced? My made in China tires are failing after 4 years. I only trailer once a year to Flordia( 1,300) miles and down and back to NJ shore for 180 miles. I experienced a 55 MPH blow out 2 days ago on route 95 around NC.
Thank you for any consideration,
John 27 Ranger Tug--Diesel

 

[ALICE J]

Can't help you with the boost pressure, you'll need a scanner to resolve the issue. :ugeek:
On tires at over 50,000 miles on my trailer in eight years never had an issue. Replaced the tires after five years just for safety as they age, but plenty of treads left. I used an "H" rated tire that took 110 lbs of pressure and I believe it was a 16-ply tire. I too only drove at 55 mph and used the "TireMinder" to monitor the pressure and heat on each tire. I will admit that I overloaded "Alice J" which caused two bent axles, but replace them and added a third axel done by Float-On in Vero Beach, FL. I- 95 in South Carolina is notorious for very rough roads So watch your weight, as rough roads will stress your trailer. I was at +13,000 lbs on the trailer which was a shock as I originally weighed in at just over 11,000 lbs, but I had neglected, to re-weigh the trailer and boat after adding a ton of spares and other items. If you choose higher tire plies, replace the valve stems with all metal stems, as the rubber stems will fail and lose pressure; my "TireMinder" saved a tire issue by alerting me that I was losing pressure.
As an aside, the three-axle trailer will be harder to turn sharp, and tires will show more scuff if you make tight turns. Also, try to park in a straight line because the torque on the tongue of the trailer caused by the three axles makes the trailer always aligned in a straight line. What will happen when you un-hitch the trailer, the tongue will whip off of the truck hitch and cause a startled reaction and possibly other issues.

 

[scross]

Can’t comment on the error code on the Yanmar 4BY2-180.
The Goodyear Endurance tires seem to be everyone’s choice for a good trailer tire. Gets excellent reviews at the tire rack.com. I move to them after first using Michelin Load Range E truck tires on our trailer. The Michelins worked fine but when the USA made Goodyear Endurance tires came out I switched. I change out trailer tires every 3-4 years even though I only put about 7,000 to 8,000 miles during that time.
Im sure you know all this but I’ll repeat it anyway. The number one thing that kills trailer tires is low pressure. Check your pressures regularly and check the tire temperature at each gas stop with an infrared thermometer. While you are there with the thermometer check the bearing temps as well. Also make sure your trailer is level to the ground so you’re not overloading either the front or rear axles.
When towing long trailers in the 1970-2010 era when Chinese tires were pretty much your only option blowouts were a regular event. Glad those days are over.

 

[knotflying]

Isn’t your engine a 4BY2 -180? Try taking a look at your turbo. There is a small hose that comes from the gate valve. Follow it and it connects underneath to a small tube. The clamp is a squeeze clamp and sometimes that hose slips off and then the gate valve becomes inoperative. Mine kept slipping off. I finally used a regular clamp that you can tighten. I hope this works.

Alice J did well with the H rating, but I am not sure if endurance tires go that level. If they do, go H if not stay with Endurance. I changed mine every three years. I tend to be overkill for safety. Here are what I call tire killers:
Lack of use, under/over inflation, sharp turns, hitting curbs, overloading trailer, speeds over 65mph. When actively towing check inflation pressure every morning, especially when heading from hot to cold weather. When you stop for fuel check your hubs for excessive heat. Check tire pressure (it should be higher than cold pressure) and compare to all tires for similar pressure. Examine tires for delaminating.

 

[S. Todd]

I always specify Goodyear Endurance tires on my boat trailer and travel trailer. Prior to that it was Goodyear Marathon (which was replaced by the Endurance). If you have to buy something else in a emergency due to an on the road failure, just plan on replacing them within two years.

The best thing you can do is park the trailer indoors. I have been successfully getting 6 years out of them that way and then replace out of caution. The worst thing you can do is park a trailer on the dirt in the yard. Second worst is parking on gravel. If you must park outside and don't have a concrete pad for it, park it on boards or rubber mats to get it off the ground.