Return to the home page...

Go Back   Moyer Marine Atomic 4 Community - Home of the Afourians > Search Forums

Showing results 1 to 25 of 500
Search took 1.02 seconds.
Search: Posts Made By: Dave Neptune
Forum: Troubleshooting Yesterday, 09:06 PM
Replies: 10
Views: 93
Posted By Dave Neptune
You can test in place. Dave Neptune :cool:

You can test in place.

Dave Neptune :cool:
Forum: Troubleshooting Yesterday, 08:38 PM
Replies: 10
Views: 93
Posted By Dave Neptune
To pressure check just plug one end of the...

To pressure check just plug one end of the manifold where the water goes in or out and then get a "shrader-valve" adapted to the other with a pressure gage. Pump it up with a bicycle pump and see if...
Forum: Troubleshooting Yesterday, 08:00 PM
Replies: 10
Views: 93
Posted By Dave Neptune
Did you winterize the engine? Take a shop wet vac...

Did you winterize the engine? Take a shop wet vac down and suck out as much as you can.

Try to spin the engine with the starter AFTER sucking the water from under the oil in the pan AFTER...
Forum: Troubleshooting Yesterday, 07:33 PM
Replies: 10
Views: 93
Posted By Dave Neptune
Exclamation Winter freeze

W-jack, be sure and keep giving her a spin so she does not sieze.

The damage does look repairable BUT ONLY if you know how the water got in and I mean for sure. Look for cracks and at least...
Forum: General Interest Yesterday, 07:26 PM
Replies: 4
Views: 134
Posted By Dave Neptune
If you had sticky valves a honing of the guides...

If you had sticky valves a honing of the guides may be in order. Are you having the valves replaced? How much engine work are you having done? Just curious.

Dave Neptune :cool:
Forum: General Interest 04-20-2019, 09:10 PM
Replies: 4
Views: 134
Posted By Dave Neptune
In a "flathead" engine such as the A-4 valve...

In a "flathead" engine such as the A-4 valve guides are seldom even touched.

Who told you to redo the guides?

Dave Neptune :cool:
Forum: General Interest 04-19-2019, 07:59 PM
Replies: 6
Views: 232
Posted By Dave Neptune
Austin, for the most part any mechanic worth his...

Austin, for the most part any mechanic worth his salt(???) is going to recommend a repower. There just isn't much money for them to make servicing an old A-4. It's a gas engine and old school so...
Forum: Overhaul 04-12-2019, 04:36 PM
Replies: 11
Views: 360
Posted By Dave Neptune
That water injection point needs to be at least...

That water injection point needs to be at least 3~4 inches further downstream.
You could plug it and add the MMI injection Tee below the end of the elbow.
Also check the manifold to see that it...
Forum: Troubleshooting 04-09-2019, 12:29 PM
Replies: 17
Views: 447
Posted By Dave Neptune
Exclamation j-19, how do the plugs look? A few pics of them...

j-19, how do the plugs look? A few pics of them may be a big help.

If the exhaust has not been done for 5~6 years or longer this would be a big possibility. This scenario "USUALLY but not always"...
Forum: Troubleshooting 04-07-2019, 06:00 PM
Replies: 12
Views: 389
Posted By Dave Neptune
SPN, the first thing I would do is eliminate the...

SPN, the first thing I would do is eliminate the "trailer" style plug especially if doing any kind of a rewire. This will possibly eliminate any weak connections to which these plugs are notorious...
Forum: Electrical 04-03-2019, 11:59 AM
Replies: 8
Views: 388
Posted By Dave Neptune
Lightbulb Personally I used "deep cycles" on both banks,...

Personally I used "deep cycles" on both banks, start and house. A pair of #235's for the house and a Grp 27 DEEP CYCLE on the start side. The deep cycle Grp 27 had plenty of power for the cranking of...
Forum: Fuel System 03-11-2019, 11:44 AM
Replies: 4
Views: 289
Posted By Dave Neptune
Red face Many things perhaps

Greg, you may have there issues as the +/- I gave you are for a good tune as far as all else is concerned. Timing, sticky advance weights, float level, any kind of a vacuum leak and the carb internal...
Forum: Fuel System 03-07-2019, 06:17 PM
Replies: 4
Views: 289
Posted By Dave Neptune
It can and should have a "slight" influence in...

It can and should have a "slight" influence in RPM's until it begins to shudder to a stop. Maybe +/- 50 RPM.

Dave Neptune :cool:
Forum: Electrical 03-03-2019, 09:43 PM
Replies: 21
Views: 661
Posted By Dave Neptune
Joe, John "Q" Public is mostly interested in...

Joe, John "Q" Public is mostly interested in systems with well written boasting:confused:. I looked to "tiffany's (west marine)" for a solar system and was shocked with the costs after having...
Forum: Electrical 03-03-2019, 01:40 PM
Replies: 21
Views: 661
Posted By Dave Neptune
WOW, I don't see any advantage to it other than...

WOW, I don't see any advantage to it other than financial bragging rights! I also don't see many applications "size of vessel wise" to which it would be an advantage.

For those of us in 30~40 ft...
Forum: General Maintenance 01-05-2019, 11:13 AM
Replies: 21
Views: 627
Posted By Dave Neptune
NY, I too recommend using the diesel fuel for a...

NY, I too recommend using the diesel fuel for a "thinner". In he old days we would often clean the engines before doing the then repetitive valve jobs. These engines that people ran non-detergent oil...
Forum: Cooling System 01-04-2019, 02:10 PM
Replies: 6
Views: 462
Posted By Dave Neptune
I too had a good deal of longevity with my side...

I too had a good deal of longevity with my side plate. I owned the boat for 34 years and had the same one as when I bought her. Many R&R's as well as 2 acid flushes and 4 or 5 vinegar soaks. This too...
Forum: Cooling System 12-27-2018, 12:52 PM
Replies: 41
Views: 1,624
Posted By Dave Neptune
Bill, is the hi-pressure between the pump and the...

Bill, is the hi-pressure between the pump and the injection tee?

If it is that is not really that bad and actually kinda good. I ran and worked on a lot of boats on the lower Co River which is...
Forum: Cooling System 12-24-2018, 11:15 AM
Replies: 41
Views: 1,624
Posted By Dave Neptune
Exclamation Be sure

Bill, if you are checking the performance of the cooling system then test it under a cruising load.

AND be sure that the engine box is closed as a lot of heat radiates out when open adding to the...
Forum: General Interest 12-22-2018, 10:41 AM
Replies: 17
Views: 632
Posted By Dave Neptune
To FB is "no look". I believe it is based more on...

To FB is "no look". I believe it is based more on most users social inabilities and not just for info and camaraderie:rolleyes: like here.

My wife is on FB for hours every day a real social being....
Forum: Polls 12-19-2018, 05:18 PM
Replies: 15
Views: 701
Posted By Dave Neptune
Joe, using copper 1/8 tubing works great. Install...

Joe, using copper 1/8 tubing works great. Install it with a "vibration" loop and use a minimum of 2 feet for dampening.

Mine would idle all day and did for 7 hours once at 700 and I had the PCV...
Forum: Polls 12-17-2018, 11:42 AM
Replies: 15
Views: 701
Posted By Dave Neptune
Warning

Neil, that is a very informative post (#13) however it should come with a warning. Virtually all of the dancing of the gage is controlled by the vacuum and the dampening of the gage. Some gages are...
Forum: Fuel System 12-17-2018, 10:58 AM
Replies: 19
Views: 1,045
Posted By Dave Neptune
Joe, why can't your engine be put back to...

Joe, why can't your engine be put back to mechanical? My guess would be no pump plunger in the block.

Dave Neptune :eek:
Forum: Polls 12-15-2018, 11:04 AM
Replies: 15
Views: 701
Posted By Dave Neptune
Jerry, those numbers other than idle are terrible...

Jerry, those numbers other than idle are terrible if not in gear. If in gear their great for a direct drive:D.

Under load with a clean bottom and Indigo prop my numbers were close to yours posted....
Forum: Polls 12-14-2018, 07:36 PM
Replies: 15
Views: 701
Posted By Dave Neptune
Bill, I'm trying to recall for sure but can't...

Bill, I'm trying to recall for sure but can't swear to it.

800 RPM engine warmed a few minutes about 18", I do remember I would loose about 1" if the alt was working hard.

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

 
Forum Jump

All times are GMT -4. The time now is 06:33 PM.


Powered by vBulletin® Version 3.8.9
Copyright ©2000 - 2019, vBulletin Solutions, Inc.


Universal® is a registered trademark of Westerbeke Corporation

Copyright © 2004-2019 Moyer Marine Inc.

All Rights Reserved