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Search: Posts Made By: Dave Neptune
Forum: Ignition System 11-30-2021, 07:28 PM
Replies: 2
Views: 654
Posted By Dave Neptune
The plug is cracked or broken inside, either the...

The plug is cracked or broken inside, either the porcelain or the metal/porcelain seal allowing the leak. Just replace the plug.

Dave Neptune :cool:
Forum: Troubleshooting 11-26-2021, 11:41 AM
Replies: 9
Views: 414
Posted By Dave Neptune
No rebuild yet! A stuck or sticky valve is...

No rebuild yet! A stuck or sticky valve is probably causing the zero cylinder~~no biggie. The low numbers are not that bad and could easily be sticky rings from sitting or the results of a poor...
Forum: Troubleshooting 11-19-2021, 06:10 PM
Replies: 6
Views: 424
Posted By Dave Neptune
Absolutely, barnacles and such don't know to grow...

Absolutely, barnacles and such don't know to grow "evenly dispersed".

Dave Neptune :cool:
Forum: Troubleshooting 11-17-2021, 01:20 PM
Replies: 13
Views: 495
Posted By Dave Neptune
You'll be glad you did, the gage will help in the...

You'll be glad you did, the gage will help in the future and the tank will be clean.

Dave Neptune :cool:
Forum: Troubleshooting 11-14-2021, 02:56 PM
Replies: 13
Views: 495
Posted By Dave Neptune
A common issue. If you have decent access and a...

A common issue. If you have decent access and a port to snake a tube in you can wiggle it to the bottom corner and suck the krud out from under the "good fuel". Most often it is the access at the...
Forum: Troubleshooting 11-13-2021, 09:37 AM
Replies: 12
Views: 588
Posted By Dave Neptune
How did you conduct the 2 compression tests? ...

How did you conduct the 2 compression tests?

The test should be done first dry and then with some oil sprayed into the cylinder the wet test.

When conducting the tests the throttle and choke...
Forum: Troubleshooting 11-11-2021, 09:26 AM
Replies: 6
Views: 424
Posted By Dave Neptune
A dirty prop and a dirty bottom can really slow...

A dirty prop and a dirty bottom can really slow things down. I would not be to concerned until you test after the bottom and prop are really clean.

As far as "carb adjustment" is concerned all you...
Forum: Troubleshooting 11-09-2021, 09:14 AM
Replies: 6
Views: 424
Posted By Dave Neptune
What is the diameter and pitch of the prop? And...

What is the diameter and pitch of the prop? And what RPM's were you getting before?

Dave Neptune :cool:
Forum: Cooling System 11-08-2021, 05:26 PM
Replies: 10
Views: 544
Posted By Dave Neptune
Yes use a good Permatex Aviation Grade or Number...

Yes use a good Permatex Aviation Grade or Number 2 grade.

The water pump can leak into the oil via the rear seal. If the water getting in has been consistent it's a likely suspect. Intermittent...
Forum: General Interest 11-04-2021, 01:09 PM
Replies: 15
Views: 986
Posted By Dave Neptune
Joe, I added 3 cans to about 5 that were in the...

Joe, I added 3 cans to about 5 that were in the tank and did not even notice any performance drop at all, ran just fine. We di run an old Briggs go kart a few times when we ran out of...
Forum: General Interest 11-03-2021, 11:36 AM
Replies: 15
Views: 986
Posted By Dave Neptune
As Joe stated Av gas can really screw up a...

As Joe stated Av gas can really screw up a cat-converter and is a good bit of advise. And the other big plus with Av-gas is it's "shelf life", as it can sit for a long long time before going bad.;)
...
Forum: Overhaul 10-30-2021, 12:42 PM
Replies: 78
Views: 9,828
Posted By Dave Neptune
The torque values between fine and coarse threads...

The torque values between fine and coarse threads is far different for the same clamping pressure.

A stud with coarse or fine threads at "BOTH" ends can easily be swapped out for a bolt but not...
Forum: Troubleshooting 10-28-2021, 11:36 AM
Replies: 5
Views: 391
Posted By Dave Neptune
Since she started right back up I doubt it is...

Since she started right back up I doubt it is spark related as a coil can open up and quit when warm it does need a bit of time to cool and throw a spark. Does the spark look blue or yellowish?

I...
Forum: Troubleshooting 10-16-2021, 11:37 PM
Replies: 30
Views: 1,759
Posted By Dave Neptune
The emulsion well is in the middle of the float...

The emulsion well is in the middle of the float bowl. The fuel from the main jet feeds fuel into it and air is fed into it via vacuum and metered by the main air (corrector) jet. The chamber has a...
Forum: Troubleshooting 10-15-2021, 11:28 AM
Replies: 30
Views: 1,759
Posted By Dave Neptune
Next time you check for spark do it via a plug...

Next time you check for spark do it via a plug wire to eliminate any issue with arching under the cap and a good spark path.

Do double check the wires for correct order twice! Maybe the rotor was...
Forum: Troubleshooting 10-10-2021, 11:46 AM
Replies: 55
Views: 2,334
Posted By Dave Neptune
Rick, when she revved up and was moving water was...

Rick, when she revved up and was moving water was there a difference in sound?
Sooty plugs can be caused by an over rich load situation or back pressure in the exhaust. First how old is the...
Forum: General Interest 10-09-2021, 12:09 PM
Replies: 3
Views: 417
Posted By Dave Neptune
I had a heck of a time selling my ole E35MKII a...

I had a heck of a time selling my ole E35MKII a few years back and needed to lower the price to "give away" status. To buy another boat we had 2 sell out from under us and got the 3rd all the same...
Forum: Troubleshooting 10-09-2021, 12:04 PM
Replies: 55
Views: 2,334
Posted By Dave Neptune
OK, now you have confirmed fuel delivery lets...

OK, now you have confirmed fuel delivery lets look to the ignition. I see that you stated the C-advance is smooth and lubricated ~ good.

Just for the sake of argument be sure the plug wires are in...
Forum: Troubleshooting 10-08-2021, 06:26 PM
Replies: 9
Views: 543
Posted By Dave Neptune
First try using the choke after 5 minutes then...

First try using the choke after 5 minutes then start throwing parts at it.

A good running A-4 SHOULD BE HARD TO STAR WHEN WARM as it is an "updraft carb" which almost always will need the choke....
Forum: Overhaul 10-05-2021, 02:01 PM
Replies: 4
Views: 624
Posted By Dave Neptune
Check the manifold via the "water inlet and exit...

Check the manifold via the "water inlet and exit port" on the top of the manifold.

Dave Neptune :cool:
Forum: Troubleshooting 10-05-2021, 12:14 PM
Replies: 3
Views: 477
Posted By Dave Neptune
David, sounds as if you are on the right path....

David, sounds as if you are on the right path. Give it a thorough tune-up. Lube the C-advance and replace the points, plugs, condenser, coil and wires.

It is a VERY good idea on these old motors...
Forum: Troubleshooting 10-05-2021, 11:25 AM
Replies: 55
Views: 2,334
Posted By Dave Neptune
You don't have enough torque for that much blade...

You don't have enough torque for that much blade area if it is a 3 or 4 blade. The reason the indigo rev's up is the blade area is matched to the torque of the A-4.

The 12 x 7's you here of on the...
Forum: General Interest 10-04-2021, 11:31 AM
Replies: 6
Views: 537
Posted By Dave Neptune
Thumbs up Shawn, looks like a keeper. However I must say in...

Shawn, looks like a keeper. However I must say in "my experience" I have found the A-4 to be extremely reliable when properly maintained. I bought my A-4 (when seized) and built my own EI from...
Forum: Troubleshooting 09-26-2021, 05:51 PM
Replies: 6
Views: 506
Posted By Dave Neptune
Take a good look at the broken area. I have seen...

Take a good look at the broken area. I have seen a few broken cranks on duty rated engines. Most often they are an existing crack that finally let go. Look for dissimilarities on the surface of the...
Forum: Fuel System 09-25-2021, 08:58 PM
Replies: 8
Views: 498
Posted By Dave Neptune
Those are the choke screws the throttle shaft has...

Those are the choke screws the throttle shaft has 2 more.

Dave Neptune :cool:
Showing results 1 to 25 of 500

 
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