High Temp Alarm and Light Coming On

[Cattail]

Since early Sept. I can run at 3800 - 4000 rpm's for onlya short distance (.5 - 1 mile) then my port engine hot light and alarm goes off. Shut down, wait 30 secnds or so, start up and run again same distance with sameoccurrence. Water pumps and impellor replace in 4/04. Pop off valve replaced 10/04. This happened several times in mid-September, then one day everything ran fine. Now it is back to setting off the alarm.

Had cylinder temps cehcked and showed bottom two were near 210 degrees when alarm went off, middle and top cylinders at 130-140 degrees. Compression checks show all about the same.

Aany ideas?

[RUSTY63]

Welcome to the BBC.

We will need your model number to help with this problem.

[Cattail]

Evinrude Ficht 200 hp. 2000 year model.

[Bassmeister]

That will help but he really needs the # off the motor bracket! The more info you give the more they can give. Hope this helps

[Cattail]

These are the numbers I can get to today. They are off the bill of sale. Not sure which one is the port engine so I' ll give you both.

2000 Evinrude Ficht 200 hp E200FPXSS 04849317
2000 Evinrude Ficht 200 hp E200FCXSS 04847982

Hope this is what you need.

[RUSTY63]

When did you have the cylinder head temps checked?

I would think with the top cylinders running close to specs and the lower ones running hot there may be a problem with the water deflectors, these are in the block behind the cylinder heads....If the thermostats and impeller are good.

[Cattail]

Cylinder temps were taken while on the water just recently. Ran boat up to cruising speed (3800 - 4000 rpm's) with engine cover off. When alarm sounded, the temps were checked with an infared temperature tester right at each cylinder.

Water pump, thermostat, and impeller replaced in March of '04. Thermostat replaced again in September '04 when similar problem occurred. Also replaced pop-off valve at same time due to it not being seated well in its normal position.

[SEAHORSE]

Remove the "blow off" valve and look thru the hole in the block. Make sure there is no debris or flashing that may restrict the water flow.

What number waterpump kit was installed? There are 2 identical looking kits and the wrong one will overheat the motor at high speeds. If it was an aftermarket kit, replace it with the factory #5001595 kit right away. Also if the o-rings were glued in sloppily inside the water pump housing, the air bleed hole could be plugged and cause problems.

Are there any transducers, hull fittings, or speedo pickups within 14" of the motor's centerline? If so, the water inlets may be ingesting aerated water which will cause overheating when on plane.

Is the toe-in or toe-out of the twin motors correct so that one motor is not at too great an angle for good water pickup?

[Cattail]

I will try to get the kit # for the waterpump. However, it was installed by the Evinrude dealer that sold me the boat, motors, and trailer.

[THE WITCHDOCTOR]

Man seahorse, I know I personally just learned alot!!!!!!!!!!!!!!!!!!!!!!!!!!!!

[SEAHORSE]

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by THE WITCHDOCTOR &raquo;</TD></TR><TR><TD CLASS="quote">Man seahorse, I know I personally just learned alot!!!!!!!!!!!!!!!!!!!!!!!!!!!! </TD></TR></TABLE>


Really???? Do you have twin engines on your bassboat?

[Bassmeister]

Nope but I can see the gears in his head clicking now!!!!

[Cattail]

Thanks for all the input. The boat and motor is in the dealer's shop and after replacing the water pump, impeller, thermostats, and checking the pop-off valve the problem still exists. The dealer has been in contact with Bombardier and their suggestion is to remove the heads and look at the water deflectors.

Hopefully this will rectify the problem. Once again, thanks to all those who responded.

[Bassmeister]

HUMMMMMM, I believe that was one of the first things Rus said!!!!! Dat's why I love dis place!!!!

[Cattail]

As a follow-up, the engine had waterpump, impeller, thermostat, and pop-off valve replaced; tested and still had problem. Next, the water deflectors and headgaskets were replaced, water system flushed and cleaned, and temperature sensor replaced. Tested again and alarm did not activate.

However, I brought the boat home and had another mechanic check it out. He found the replaced sensor was not even screwed in all the way. Actually, the retaining nut was totally loose from the cylinder housing and there was so much grease used to help insert the sensor rubber gasket that most of the grease was in front of the sensor. There was no way to screw the retaining nut in because the sensor and gasket could not seat all the way in. Corrected this. My question now is did the testing of the engine after replacing defelctors, etc., give a false non-reading since ithe sensor was not seated properly?

Also, there was some scoring evident on the lower starboard cylinder. What could cause this? Lack of oil, high temps from lack of water cooling. Original cylinder pressures showed 135 top and middle both sides, 130 lower port, and 125 lower starboard. After all replacements, lower starboard increased to 130. Also plugs on lower and middle starboard cylinders are burning and have same color as all others. Pre-replacement showed these two to be burning a brownish color and not black like rest.

I am to water test the boat myself on Friday 10/21 but am concerned that the sensor may have given a false reading. Will let you know what happens.

[Cattail]

Tested the motor today and didn't get very far before the high temp alarm sounded. I guess the dealer couldn't get the alarm to sound because he hadn't installed it properly. (That's one to correct the problem)

Anyway back to the shop but not sure what to do next. I am sure the Dealer wants to put on new powerhead. Engine only has 540 hours on it.

[ChampioNman]

Cattail do you have H20 pressure gauges installed? Just curious as I hadn't seen any reference to what the pressure was at the time of the alarm.

[Cattail]

According to the dealer, he said that the port engine was showing 5 more lbs of pressure than the starboard after repairs. I've not actually looked at the gauges when the alarm goes off.

[SEAHORSE]

Re-read the last 2 paragraphs in my post of 10-12-05.

By the way, does the motor overheat just after or during a turn, or just while going straight?

[Cattail]

The transducer is in the center line of the boat and not in line with either engine. Nothing is in within 14" of the centerline of the motors.

The problem has occurred while going in a straight direction. As for toe-in or toe-out, I have been using these engines since 2001 with no problem until recently, so I can't see where toe-in or out would be the problem.

The latest place to look according to Bombardier techs is to check the gasket between the powerhead and lower unit and also look for an exhaust leak in same area. Other than this the techs are saying it may be a small hole in the powerhead.