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Search: Posts Made By: Dave Neptune
Forum: Electrical Yesterday, 07:30 PM
Replies: 2
Views: 37
Posted By Dave Neptune
The alt should be running positive easily at 1000...

The alt should be running positive easily at 1000 with the blower, GPS, radios and even a few lights. Either your belt is slipping, the alt is failing or you have some weak connections.

Look at...
Forum: Troubleshooting Yesterday, 07:24 PM
Replies: 4
Views: 85
Posted By Dave Neptune
If we could identify how the water is coming in...

If we could identify how the water is coming in there just may be a quick patch/fix to get you going.

Don't forget the trouble of mounting an OB and the expense as well as time.

There are a few...
Forum: Troubleshooting Yesterday, 02:32 PM
Replies: 6
Views: 124
Posted By Dave Neptune
Lightbulb David, welcome to the forum. Everything sounds...

David, welcome to the forum. Everything sounds good ign wise. And a new carb. However I do wonder about fuel flow, do you have a pressure gage in front of the carb. I have seen week electric pumps...
Forum: Troubleshooting 08-20-2019, 12:03 PM
Replies: 9
Views: 149
Posted By Dave Neptune
RE, Al and the sticky solenoid, there may not be...

RE, Al and the sticky solenoid, there may not be enough voltage to close the solenoid to engage the starter.

If you get to the boat with a meter, check the voltage at the battery(s). Then get a...
Forum: General Interest 08-20-2019, 10:20 AM
Replies: 12
Views: 279
Posted By Dave Neptune
Well if your going to pull it you have a good...

Well if your going to pull it you have a good start already. The engine when stripped can be moved much easier. Clean her up, drain the crankcase and remove what you can from the block. When pulling...
Forum: Troubleshooting 08-20-2019, 10:12 AM
Replies: 9
Views: 149
Posted By Dave Neptune
Wow it's a key switch. Just think of how much...

Wow it's a key switch. Just think of how much water has been sprayed and trapped in that switch over the years.

Can you use a voltmeter? This may seem daunting if you are just unfamiliar with the...
Forum: Troubleshooting 08-19-2019, 09:39 PM
Replies: 9
Views: 149
Posted By Dave Neptune
Do you have an ignition switch somewhere? ...

Do you have an ignition switch somewhere?

It's all about volts and chasing down the week link. The start button is a good one and if your boat still has the trailer style plug attaching the panel...
Forum: General Interest 08-19-2019, 06:41 PM
Replies: 12
Views: 279
Posted By Dave Neptune
The engine should move with just bit of pressure...

The engine should move with just bit of pressure if not your seized. Do go BOTH directions while prying.

Do you have access from above? If so a block of wood and a dead-blow hammer will probably...
Forum: Overhaul 08-18-2019, 12:40 PM
Replies: 7
Views: 147
Posted By Dave Neptune
Many Cat 30's on this site. Can you pry against...

Many Cat 30's on this site. Can you pry against the flywheel teeth through the starter hole. Be very careful against the teeth and work back and forth not just one direction.

Dave Neptune :cool:
Forum: General Interest 08-18-2019, 11:36 AM
Replies: 12
Views: 279
Posted By Dave Neptune
What kind of boat? Many times it is easier to cut...

What kind of boat? Many times it is easier to cut in an "access hole" to work on an engine. Pics of access my help too.

Also try to stick to a single thread for your project. It will be easier to...
Forum: Overhaul 08-18-2019, 11:16 AM
Replies: 7
Views: 147
Posted By Dave Neptune
How long did the engine set while "wet"? I have...

How long did the engine set while "wet"? I have resurrected engines that "looked" worse and ran for many more years once dried and the rings shook loose. Food for thought. These engines are extremely...
Forum: General Interest 08-18-2019, 10:04 AM
Replies: 12
Views: 279
Posted By Dave Neptune
If you can see the flywheel you could use it or...

If you can see the flywheel you could use it or get a "hand starting" handle. It should turn quite easy with the head off or is the engine seized?

Dave Neptune :cool:
Forum: Ignition System 08-16-2019, 10:17 AM
Replies: 9
Views: 188
Posted By Dave Neptune
The higher resistance of the carbon core vs solid...

The higher resistance of the carbon core vs solid core is the same thing as a resistor/non-resistor plug. It is the resistance that increases the intensity of the spark by making a bit shorter in...
Forum: Troubleshooting 08-16-2019, 10:03 AM
Replies: 38
Views: 959
Posted By Dave Neptune
Capnward, the correct float level is what the...

Capnward, the correct float level is what the carb needs to meter properly. A "factory" carb is metered for a particular engine and this same carb can be metered different for an engine of more or...
Forum: Ignition System 08-15-2019, 08:51 PM
Replies: 9
Views: 188
Posted By Dave Neptune
Their probably actually "carbon core" not carbon...

Their probably actually "carbon core" not carbon fiber. Carbon wires are used mostly for radio noise suppression. And as Al pointed out they do break down.
Solid core wires were the norm and you...
Forum: Troubleshooting 08-15-2019, 05:12 PM
Replies: 17
Views: 414
Posted By Dave Neptune
What is your idle speed? Try a few more RPM's and...

What is your idle speed? Try a few more RPM's and give the idle screw a 1/4 turn in. Often if your on the low edge of idle speed going into reverse is "easier" on the idle due to the gear reduction...
Forum: General Interest 08-13-2019, 09:47 AM
Replies: 22
Views: 479
Posted By Dave Neptune
splashlog, this black fuel is odd to say the...

splashlog, this black fuel is odd to say the least. The only ""black" I've seen in a carb is from gas hoses going bad from ethanol that have not been upgraded to ethanol resistant fuel lines. Did you...
Forum: Reversing Gear 08-12-2019, 09:37 PM
Replies: 7
Views: 349
Posted By Dave Neptune
Boat, just to be sure are you aware that the A-4...

Boat, just to be sure are you aware that the A-4 direct drive has no means to hold the trans in reverse other than your hand pressure and/or cable friction. Many have thought they needed an...
Forum: General Interest 08-12-2019, 09:33 PM
Replies: 22
Views: 479
Posted By Dave Neptune
Question info

First, a valve is not going to turn the fuel black.

Did you pump some fuel into a clear container to check? Or are you just confident in your filters?

Do you have any additives in the fuel?
...
Forum: Troubleshooting 08-11-2019, 10:40 AM
Replies: 17
Views: 414
Posted By Dave Neptune
Gary, first welcome t the MMI Afourian Forum. ...

Gary, first welcome t the MMI Afourian Forum.

Yes it could be very simple. What is your idle RPM? Should be around 700 or so. Did you try to "richin" the idle a bit by turning in the idle screw a...
Forum: Troubleshooting 08-09-2019, 11:16 AM
Replies: 38
Views: 959
Posted By Dave Neptune
The only advantage to an OB is you can take it...

The only advantage to an OB is you can take it home to work on. Allso be aware that is no simpler to work on or diagnose!!

The first thing I would do is take a look under the distributor cap to...
Forum: Troubleshooting 08-09-2019, 10:18 AM
Replies: 10
Views: 249
Posted By Dave Neptune
Reckless, you say the carb was full of water, can...

Reckless, you say the carb was full of water, can you give a bit of a description please. Was it in the bowl and if so how full of water? Or was it just water in the throat of the carb? Or did the...
Forum: Troubleshooting 08-08-2019, 04:56 PM
Replies: 10
Views: 249
Posted By Dave Neptune
If indeed the fuel being supplied is free of...

If indeed the fuel being supplied is free of water then the first test is to pressure check the manifold. It can be done in place. Many links on this site for testing instructions.

Dave Neptune...
Forum: Troubleshooting 08-04-2019, 11:40 AM
Replies: 13
Views: 389
Posted By Dave Neptune
No the gap will not cause a shut down. Do inspect...

No the gap will not cause a shut down. Do inspect the plugs and set to about .040 as you have an EI. The gap only influences the fire at the tip which starts the whole power stroke. The EI produces a...
Forum: Troubleshooting 08-04-2019, 09:32 AM
Replies: 13
Views: 389
Posted By Dave Neptune
I agree with Al. You could let her run until she...

I agree with Al. You could let her run until she dies and then check for spark.

The engine shutting down like the key was shut off is indicative of an electrical failure of connection. The "fact"...
Showing results 1 to 25 of 500

 
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