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Search: Posts Made By: JOHN COOKSON
Forum: Fuel System 12-30-2021, 11:12 AM
Replies: 25
Views: 4,042
Posted By JOHN COOKSON
Were you using graphite core or solid core high...

Were you using graphite core or solid core high voltage wires that failed over time? Copper core should last indefinitely where as graphite core spark plug wires will fail over time.
IMO graphite...
Forum: Fuel System 12-27-2021, 05:41 PM
Replies: 25
Views: 4,042
Posted By JOHN COOKSON
SIDE NOTE TO SHAWN

If you have points....
Sometimes points don't conduct well after being unused for awhile. "Just for fun" try passing a points file between the points contacts to see if it helps the reluctant...
Forum: Cooling System 12-21-2021, 06:42 PM
Replies: 4
Views: 2,366
Posted By JOHN COOKSON
A bit of reserve cooling capacity is good to...

A bit of reserve cooling capacity is good to have. IMO you are on the right track.
If after confirming good water flow through the engine*, and a acid flush you are not happy with the result try...
Forum: Fuel System 12-19-2021, 11:21 AM
Replies: 25
Views: 4,042
Posted By JOHN COOKSON
This is the ideal set up. On some boats (such as...

This is the ideal set up. On some boats (such as my ex Cat 27) it was necessary to modify to achieve this. The cable was suspended in space between the cockpit and carb until I fixed it. In any case...
Forum: Fuel System 12-18-2021, 05:38 PM
Replies: 25
Views: 4,042
Posted By JOHN COOKSON
If you need choke adjusting instructions let me...

If you need choke adjusting instructions let me know.

ex TRUE GRIT
Forum: Fuel System 12-18-2021, 11:26 AM
Replies: 25
Views: 4,042
Posted By JOHN COOKSON
I think it's the or these. It's been a few years...

I think it's the or these. It's been a few years since I've done this. The little circular plate that has the fixed arm attached needs to be rotated.
If necessary the angle that the choke cable...
Forum: Fuel System 12-18-2021, 11:09 AM
Replies: 25
Views: 4,042
Posted By JOHN COOKSON
You need adjust the fixed arm. There is a screw...

You need adjust the fixed arm. There is a screw that holds a sort of circular plate in place - that is where the adjustment is.
I scribed a line on the plate and carb body with diamond tip pencil...
Forum: Troubleshooting 11-21-2021, 02:27 PM
Replies: 7
Views: 2,055
Posted By JOHN COOKSON
I would definitely check the advance especially...

I would definitely check the advance especially if it has been a while since you serviced it.
Been down this road myself............

ex TRUE GRIT
Forum: Troubleshooting 11-18-2021, 05:33 PM
Replies: 16
Views: 2,438
Posted By JOHN COOKSON
Fuel pressure or fuel tank gauge? I used a JEGS...

Fuel pressure or fuel tank gauge?
I used a JEGS fuel pressure gauge - stainless steel case, glass lens, liquid filled. It worked well for many years.

ex TRUE GRIT
Forum: Troubleshooting 11-13-2021, 02:03 AM
Replies: 23
Views: 3,214
Posted By JOHN COOKSON
Yes, it would be great if the polishing filter...

Yes, it would be great if the polishing filter stopped the (alleged) crud from entering the carb.
The only way to "check" the polishing filter if you don't have a fuel pressure gauge after it before...
Forum: Troubleshooting 10-26-2021, 03:12 PM
Replies: 5
Views: 1,650
Posted By JOHN COOKSON
A dying coil will exhibit these symptoms. Do you...

A dying coil will exhibit these symptoms. Do you have an EI?

After the next shutdown check for spark by pulling the big wire out of the center of the distributor cap and hold it close to the...
Forum: Troubleshooting 10-20-2021, 09:08 PM
Replies: 18
Views: 2,606
Posted By JOHN COOKSON
Couple of possibilities. Crud in the carburetor...

Couple of possibilities.
Crud in the carburetor idle circuit. There are a couple of small holes (jets) in the carburetor throat by the throttle butterfly that feed gas to the engine when it is at...
Forum: Introductions 10-20-2021, 01:18 AM
Replies: 7
Views: 3,912
Posted By JOHN COOKSON
Get copy of the Moyer manual ...

Get copy of the Moyer manual
https://moyermarine.com/product-category/manuals/

Start with the easy basic stuff: Tune ups, oil changes, fuel system service.
You will get to know your engine...
Forum: Fuel System 10-19-2021, 12:32 AM
Replies: 2
Views: 1,581
Posted By JOHN COOKSON
Try servicing the advance (under the distributor...

Try servicing the advance (under the distributor breaker plate).
You will probably need to reset the timing since the advance influences timing.

ex TRUE GRIT
Forum: Troubleshooting 09-30-2021, 11:10 AM
Replies: 30
Views: 5,020
Posted By JOHN COOKSON
DO YOU HAVE AN ELECTRONIC IGNITION?

If you have an electronic ignition and the coil does not have the correct amount of resistance (to little resistance) it can run at a to hot temperature and fail prematurely.

ex TRUE GRIT
Forum: Troubleshooting 09-30-2021, 09:52 AM
Replies: 30
Views: 5,020
Posted By JOHN COOKSON
Burnt plastic smell makes me think of wiring that...

Burnt plastic smell makes me think of wiring that is shorted to ground.
If the wiring is burning few summary tests of the various circuits should lead you to the problem.
For example see if coil +...
Forum: Troubleshooting 09-29-2021, 01:07 AM
Replies: 5
Views: 2,114
Posted By JOHN COOKSON
R\E THE IDLE

To get a satisfactory idle you will need to start with the ignition system. The dwell and timing need to be set to spec and the advance needs be working correctly.
Once the ignition "side" is...
Forum: Fuel System 09-25-2021, 11:10 AM
Replies: 8
Views: 1,507
Posted By JOHN COOKSON
Dave Could it be the screw for the poppet...

Dave
Could it be the screw for the poppet valve? I no longer have a boat so I can't check myself.

ex TRUE GRIT
Forum: Fuel System 09-23-2021, 07:08 PM
Replies: 8
Views: 12,122
Posted By JOHN COOKSON
DIAGNOSTICS?

Sounds more like an electrical problem than a fuel problem to me.
After the next shutdown check for spark immediately after the shutdown. Pull the the center wire out of the distributor cap and hold...
Forum: Troubleshooting 09-17-2021, 10:21 AM
Replies: 3
Views: 2,292
Posted By JOHN COOKSON
Attach a hose to the pump inlet. Put some water...

Attach a hose to the pump inlet. Put some water in a paper cup and pinch to form a spout and pour the water down the hose till full. Turn the engine a few times to get the air out of the pump then...
Forum: Cooling System 09-07-2021, 09:45 PM
Replies: 28
Views: 5,238
Posted By JOHN COOKSON
If by chance the shaft is scored where the...

If by chance the shaft is scored where the packing contacts it the packing will never be right.

Water is going through the engine or around the engine via the bypass? By removing the thermostat...
Forum: Cooling System 09-07-2021, 02:16 PM
Replies: 28
Views: 5,238
Posted By JOHN COOKSON
Venting the area around the engine will help...

Venting the area around the engine will help dissipate the heat that is generated.
The running temperature of the engine is determined by the engin's (correctly working) cooling system not the...
Forum: General Interest 09-05-2021, 11:52 PM
Replies: 4
Views: 1,511
Posted By JOHN COOKSON
1. Remove the thermostat and put a valve on the...

1. Remove the thermostat and put a valve on the bypass. Closing the valve will direct 100% of the pump output through the engine.
2. Try an acid flush. Even though you boat on a lake (as I recall)...
Forum: Ericson 09-03-2021, 11:38 AM
Replies: 21
Views: 6,745
Posted By JOHN COOKSON
ANOTHER $0.02

ABSOLUTELY.

I got so tired of chasing electrical problems that I finally rewired the whole shebang - correctly. Getting rid of the "trailer plugs" was a big help.

ex TRUE GRIT
Forum: Cooling System 08-24-2021, 09:15 PM
Replies: 6
Views: 2,281
Posted By JOHN COOKSON
HOW DO YOU KNOW IT'S NOT THE WIRING?

Disconnect the wire from the sending unit at the sending unit and gauge. Attach a jumper wire to one end of the sending unit wire and run the other end near the other end of the sending unit wire....
Showing results 1 to 25 of 500

 
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