How JustAnswer Works:
  • Ask an Expert
    Experts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional Answer
    Via email, text message, or notification as you wait on our site.
    Ask follow up questions if you need to.
  • 100% Satisfaction Guarantee
    Rate the answer you receive.
Ask Tan Your Own Question
Tan
Tan, MerCruiser Certified Technician
Category: Boat
Satisfied Customers: 10806
Experience:  40 yrs. experience with complete engine repairs both inboard/outboard and MerCruiser Certified Technician.
25721800
Type Your Boat Question Here...
Tan is online now
A new question is answered every 9 seconds

My 91 evenrude intruder will start and ideal and it will do

Customer Question

My 91 evenrude intruder will start and ideal and it will do good when I got the water hose hooked to it but when I take it to the lake it will start and ideal but as soon as I put it in gear to go it will die iv cleaned the carbs really good and put new kits in all of I'm what do I need to do next
Submitted: 1 year ago.
Category: Boat
Expert:  Tan replied 1 year ago.

Hello. My name is Tan.

Could I get the engine model number please?

Have you done a spark and compression test yet?

Customer: replied 1 year ago.
Its a e150gleis yes the compression is good and the spark plugs are all fireing
Expert:  Tan replied 1 year ago.

Ok How are you checking the spark?

Customer: replied 1 year ago.
With a timing light and pulling I'm out and holding to a bolt iv done put a new stater and power pack on it
Expert:  Tan replied 1 year ago.

Have you done a cylinder drop test with engine in water running? This is where you start the engine and pull each spoark plug wire off each spark plug. Does the engine drop rpms on each cylinder?

Customer: replied 1 year ago.
No I haven't what will this till me
Expert:  Tan replied 1 year ago.

This will tell us if the engine is hitting on all cylinders.

Have you checked the gear lube in the gearcase?

What is the engine idling at in the water?

Customer: replied 1 year ago.
My rpm gage does not work but there all fireing when running
Customer: replied 1 year ago.
Well iv not tried it in the water but it does when iv got the water hose hooked to it
Expert:  Tan replied 1 year ago.

This test has to be done under a load. If you are dropping cylinders the engine will stall when you have a load. On the trailer there is no load and the engine will not stall. On the trailer you could be running on 3 cylinders and it won't stall but in the water it will.

What kind of rpms is the engine idling at in the water. If the engine is idling to slow it will stall in the water but not on the trailer. All of this depends on load in the water. On a trailer you can't do accurate testing.

Customer: replied 1 year ago.
OK if I'm not fireing on all cylinders in the waster. What could be my problem
Expert:  Tan replied 1 year ago.

Bad optical sensor or failing ignition coils, Idle to low timing off.

Customer: replied 1 year ago.
The timing is at the tdc mark is up when the number one cylinder is all the way out iv checked that how can I check to c if the coils are bad.
Expert:  Tan replied 1 year ago.

Your timing is off it must be at 5-7 degrees after TDC. The engine must be idling at 600-700 rpms in gear. If your idling at below 700 in neutral the engine is not going to stay running when shifted.

Customer: replied 1 year ago.
Since why rpm gage does not work how would be a way to test my rpms
Expert:  Tan replied 1 year ago.

You have to have a working tachometer. Does your charging system work?

Customer: replied 1 year ago.
It should. Work but how can I tell. Fur sure
Expert:  Tan replied 1 year ago.

Do you have a volt meter to test your battery voltage with engine running?

Customer: replied 1 year ago.
I got one of them can I hook something on the motor. To test my rpms
Expert:  Tan replied 1 year ago.

No you have to have a working tachometer. The tach works off the charging system.

If the charging system works then the tach should work. Now there is a way to check the tach signal but it requires a peak reading volt meter.

Customer: replied 1 year ago.
What color wire in the. Harnis runs the TAC
Expert:  Tan replied 1 year ago.

Gray wire tach signal, purple 12 volts ignition and black ground. You need ground ignition voltage and tach signal.

Customer: replied 1 year ago.
How's the best way to idel it up the motor
Expert:  Tan replied 1 year ago.

Do you know what the engine is idling at rpms wise now. You shouldn't have to change iodle adjustment if you haven't changed the linkage adjustments. We need to verify rpms before we just go adjusting the linkage. If the idle isn't adjusted correctly you can damage the lower unit.

Customer: replied 1 year ago.
The are tlhree wires coming out of my shifter box could they. Be my TAC wires
Expert:  Tan replied 1 year ago.

Yes you should have a gray, purple and black.

Customer: replied 1 year ago.
OK I'll get a new TAC gages tomorrow and. Hook it up. Does it show. On the. TAC gage what wire. Goes wher
Expert:  Tan replied 1 year ago.

Yes the sender wire is gray the ignition is purple and the ground is black. The tacjh will be labeled sed, ign, grd.

Customer: replied 1 year ago.
OK I was wrong on the wires coming out there is just a 3 prong plug coming out of my. Box
Expert:  Tan replied 1 year ago.

That should still have the tach wires this is the connector for the gauges . Check the colors of the wires.

Customer: replied 1 year ago.
Would the voltage regulature cause it do what its doin
Expert:  Tan replied 1 year ago.

It can as the rec/reg power the optical sensor.

Customer: replied 1 year ago.
OKiv got a new one of them iI can put on. And try that
Expert:  Tan replied 1 year ago.

Ok

Customer: replied 1 year ago.
Would it make it not ideal right
Expert:  Tan replied 1 year ago.

Yes this is why we need to verify all the cylinders are firing under a load. If the engine isn't running on all cylinders under a load it won't idle correctly

Customer: replied 1 year ago.
What u say the best way to check the fire under the load can I do it with a timeing light.
Expert:  Tan replied 1 year ago.

Yes you can but that doesn't tell us the cylinder is firing. If there is an issue with fuel delivery to one or more cylinders you can have spark and the cylinder still not fire. The cylinder drop test is the best way. I explained that procedure earlier.

Customer: replied 1 year ago.
Just pull one plug. Wire off. At time. And watch the rpms.
Expert:  Tan replied 1 year ago.

Correct listen for the spark also. The sound will verify spark along with rpm reduction.

Customer: replied 1 year ago.
OK if the timing is off how will I be able to till
Expert:  Tan replied 1 year ago.

The timing will not line up on 5-7 degree marks on the flywheel.

Customer: replied 1 year ago.
OK I'll check that to.
Expert:  Tan replied 1 year ago.

Ok keep me posted. I'm off to bed.

Customer: replied 1 year ago.
OK ty
Expert:  Tan replied 1 year ago.

Your welcome....Thank you........Tan

Customer: replied 1 year ago.
OK I checked all. Fireing good under a load the ideal. Is under.600
Expert:  Tan replied 1 year ago.

If idling at 600 when you put it in gear the engine will die. The idling timing controls the idle speed. The timing must be at 5-7 degrees after top dead center. What is your idling timing now? The engine should idle at 650-700 rpms in gear. If you are idling at 600 it will drop rpms when you go into gear stalling the engine.

Customer: replied 1 year ago.
I looked at the. Timing mark. And. Number one. Is out at. 5 degrees when its idling I can mash. The chock. In and it picks up some
Expert:  Tan replied 1 year ago.

Do you have a working tach now? Does the engine still stall when going into gear?

Customer: replied 1 year ago.
TAC is working. Now and yes when. It goes in gear. It still dies but trys to run when I'm pushing the chock in.
Expert:  Tan replied 1 year ago.

When you push in on the chock is this advancing the timing? If yes try adjusting the chock to get the timing so engine will shift without dieing.

Customer: replied 1 year ago.
How do u a just the chock
Expert:  Tan replied 1 year ago.

This adjustment require a special tool. The tool sets idle and full throttle timing. Here is a link to the tool and instructions.

http://www.ebay.ca/itm/Johnson-Evinrude-Faststrike-Intruder-V4-V6-Easy-Timer-Ignition-Analyzer-/172088561344

Customer: replied 1 year ago.
the tool is the only way to do it
Expert:  Tan replied 1 year ago.

Yes if there was another way they wouldn't need a special tool.

Customer: replied 1 year ago.
OK what would cause. It. To do that
Expert:  Tan replied 1 year ago.

To do what?

Customer: replied 1 year ago.
For the timing on the. Throttle
Expert:  Tan replied 1 year ago.

Yes you need the tool to set the idling timing.

The engine not idling at the correct rpm tells me the engine is out of time.

Customer: replied 1 year ago.
OK guess I'll go by one.
Expert:  Tan replied 1 year ago.

The other option is to take your boat to a dealer and have them set the timing.

There just is no work around for this procedure.

This tool come with all the sync and link instructions also.

You can buy this one on ebay.

http://www.ebay.ca/itm/Johnson-Evinrude-Faststrike-Intruder-V4-V6-Easy-Timer-Ignition-Analyzer-/172103540406?

Customer: replied 1 year ago.
OK I got the tool ordered my dad thinks it some thing still. Not right with the carbs. Or the reeds are sticking but I'm like u I think its the. Timing
Expert:  Tan replied 1 year ago.

Reeds won't cause the engine to stall and it wouldn't be running correctly if you had a carb or reed issue. The carbs have been rebuilt . Your engine is close to the model year that they added a idle jet adjustment. Do you have an adjustment like this pic?

The red arrow is the idle adjustment. http://i.imgur.com/5JZ4856.jpg?1

Customer: replied 1 year ago.
Its not letting me open. The pic. Up but. The only justment iv saw on their is the one. On the primer siloned
Expert:  Tan replied 1 year ago.
Expert:  Tan replied 1 year ago.

Here's another link. http://imgur.com/5JZ4856

Customer: replied 1 year ago.
Still not letting. Me open it where is the ideal adjustment located at. And I'll look and c
Expert:  Tan replied 1 year ago.

Ok try this.

Customer: replied 1 year ago.
No mine does not have that on it
Expert:  Tan replied 1 year ago.

I didn't think so. Then the se carbs have no adjustments. So the only thing it can be is timing or the lower unit tearing up. What does the gear lube in the lower unit look like?

Customer: replied 1 year ago.
The gear. Oil looks good. I changed. Itabout a week ago and it looked like all of I'm I ever changed
Customer: replied 1 year ago.
This tool. I'm buying will help me get it in time right
Expert:  Tan replied 1 year ago.

Yes you can use the instructions that come with the tool to set up the syncronization and linkage. All of this will have an affect on the idle. This tool is a must for timing.

Customer: replied 1 year ago.
OK how hard is it going to be for me to use. This tool since iv never. Done this. Be for
Expert:  Tan replied 1 year ago.

The instructions are pretty straight forward and you shouldn't have an issue.

Customer: replied 1 year ago.
OK explain to me what exactly this tool is going to do
Expert:  Tan replied 1 year ago.

This tool will tell you when the adjustment is correct. You will have to make adjustments.

Customer: replied 1 year ago.
O OK the motor will have to be running for this then
Expert:  Tan replied 1 year ago.

No you can just turn the engine over.

Customer: replied 1 year ago.
am I going to have to.do any thing with adjusting the the pistons or is it timing the fuel
Customer: replied 1 year ago.
OK
Expert:  Tan replied 1 year ago.

No this is just the linkage on the top of the flywheel.

Customer: replied 1 year ago.
OK sounds easy
Customer: replied 1 year ago.
I took the thermostats out out of it to will that hurt any thing
Expert:  Tan replied 1 year ago.

The engine will run to cool. They need to be in. The Quickstart system needs to see the temp change.

Customer: replied 1 year ago.
OK could that cause the problem. I'm having
Expert:  Tan replied 1 year ago.

The engine would be cold and quickstart advances the timing increasing the rpms not dropping. So no.

Customer: replied 1 year ago.
O OK. But I'll get some new ones. And put I'm in it
Expert:  Tan replied 1 year ago.

Ok great.

Customer: replied 1 year ago.
How bad is the thermostat. To go out on I'm
Expert:  Tan replied 1 year ago.

The thermostat go out quite often in salt water use. I always replaced the t-stats when I did a water pump. Freshwater they don't need to be replaced as often every other water pump.

Customer: replied 1 year ago.
O OK we had a voltage deg. Burn up on us one. Time cause of the t stat went out.
Expert:  Tan replied 1 year ago.

Ok

Customer: replied 1 year ago.
OK I got my anylizer and I hooked. Up and did every thing it said to. Do. And its still not right what to do next
Expert:  Tan replied 1 year ago.

Thats all I can do at this point. Time to take it to a mechanic. I will opt out maybe someone else can help.

Related Boat Questions