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Search: Posts Made By: Dave Neptune
Forum: Overhaul 01-24-2021, 06:01 PM
Replies: 7
Views: 181
Posted By Dave Neptune
Some "sets of rings" are matched to the bore when...

Some "sets of rings" are matched to the bore when purchased. That means the "end gap" of the rings has been set to the bore specified.

There are also sets of rings that are for a particular bore...
Forum: Fuel System 01-21-2021, 10:35 AM
Replies: 7
Views: 236
Posted By Dave Neptune
Shawn, I never had an issue. I just installed it...

Shawn, I never had an issue. I just installed it and the only adjustment I made was to idle at 700 instead of 600 and a slight tweak of the idle adjustment to the rich side. She idled like a rock and...
Forum: Fuel System 01-19-2021, 11:45 AM
Replies: 7
Views: 236
Posted By Dave Neptune
Get the MMI manual

I don't know of a different fuel inlet. You can install a fitting that faces any direction.
The scavenge tube is fine. Some like myself enjoy a clean box and cabin by using the PCV system that...
Forum: Troubleshooting 01-18-2021, 07:53 PM
Replies: 70
Views: 1,742
Posted By Dave Neptune
Do not patch exhaust leaks FIX THEM. Dave...

Do not patch exhaust leaks FIX THEM.

Dave Neptune :cool:
Forum: Ignition System 01-18-2021, 03:34 PM
Replies: 6
Views: 168
Posted By Dave Neptune
I spun mine by gripping the fan belt and twisting...

I spun mine by gripping the fan belt and twisting the alt fan. Worked fine but slowly.

Dave Neptune :cool:
Forum: Troubleshooting 01-18-2021, 12:35 PM
Replies: 70
Views: 1,742
Posted By Dave Neptune
First what is the engine temp and are you sure of...

First what is the engine temp and are you sure of your gage? Do you keep your fan on during operation or not?

Indeed the "hot portion" should be wrapped. Our host has it.

Dave Neptune :cool:
Forum: Troubleshooting 01-18-2021, 12:23 PM
Replies: 70
Views: 1,742
Posted By Dave Neptune
Hissing noises are usually related to the intake,...

Hissing noises are usually related to the intake, carb or vacuum leak.

Exhaust leaks are usually a spitting sound.

Dave Neptune :cool:
Forum: Troubleshooting 01-14-2021, 12:54 PM
Replies: 70
Views: 1,742
Posted By Dave Neptune
If you are unsure of power timing send me a PM...

If you are unsure of power timing send me a PM and I will try to talk you through it.

Dave Neptune :cool:
Forum: Troubleshooting 01-14-2021, 12:52 PM
Replies: 70
Views: 1,742
Posted By Dave Neptune
The "continuity" method of setting timing won't...

The "continuity" method of setting timing won't work with most EI's. And with the power left on there is a good chance you fried another coil. They can't be left "on" long without running as they...
Forum: Troubleshooting 01-14-2021, 12:15 PM
Replies: 70
Views: 1,742
Posted By Dave Neptune
How did you reset the timing? Very small...

How did you reset the timing? Very small movements at a time!

The MMO will burn off and the plugs may be fouled.

No start = start from scratch.
Check for spark
Check for fuel
Compression...
Forum: Troubleshooting 01-13-2021, 07:26 PM
Replies: 70
Views: 1,742
Posted By Dave Neptune
You probably got some fuel to puddle on the...

You probably got some fuel to puddle on the pistons when the float was sticking. That fuel will run past the rings and join the oil. How much did the oil go up? And a little fuel mixed with the oil...
Forum: Troubleshooting 01-13-2021, 03:49 PM
Replies: 70
Views: 1,742
Posted By Dave Neptune
No issues with the stabilizer just stay within...

No issues with the stabilizer just stay within recommended dosage.

There has to be a gap or an imperfection between the cover and the hole. A careful visual inspection and feel may yield...
Forum: Troubleshooting 01-13-2021, 03:00 PM
Replies: 70
Views: 1,742
Posted By Dave Neptune
No the cover plate would have no affect other...

No the cover plate would have no affect other than covering the hole. I've not seem them to be a leaking problem. May have a bad gasket, a warped plate or a chip in the block where it seals. Remove...
Forum: Troubleshooting 01-13-2021, 02:15 PM
Replies: 70
Views: 1,742
Posted By Dave Neptune
Gude gneus. The black tube I assume was the...

Gude gneus.

The black tube I assume was the water injection to the exhaust. A bit of black water from the exhaust is not a biggie. You probably shook a bit of crap loose from the water jackets.
...
Forum: Troubleshooting 01-13-2021, 11:47 AM
Replies: 70
Views: 1,742
Posted By Dave Neptune
The "rotor" to "cap posts" is not adjustable. The...

The "rotor" to "cap posts" is not adjustable. The .016" you mention is for what? Depending on which distributor you have the "point gap'' is .025 in the Delco and .018 in the Prestolite. Both of...
Forum: Cooling System 01-12-2021, 11:50 AM
Replies: 3
Views: 296
Posted By Dave Neptune
Ron, I don't really know all about freeze plugs....

Ron, I don't really know all about freeze plugs. Driving one in with a socket is a very good practice. I was taught to "set" smaller ones with one or two centered strikes and used a rounded punch....
Forum: Fuel System 01-12-2021, 11:42 AM
Replies: 4
Views: 215
Posted By Dave Neptune
Exclamation Careful

There would be no need for a "diesel style" priming pump on an A-4.

If it is diesel it is still a big worry as warm diesel lites :eek: quite easily and if it is gas remove and inspect before EVER...
Forum: Troubleshooting 01-11-2021, 01:18 PM
Replies: 70
Views: 1,742
Posted By Dave Neptune
Do replace the cap and ROTOR as a set. The damage...

Do replace the cap and ROTOR as a set. The damage to the rotor may of caused a minor crack in the cap and there could be a carbon trail built up inside the cap. I'd also be sure all of the plug wires...
Forum: Fuel System 01-09-2021, 11:47 AM
Replies: 13
Views: 531
Posted By Dave Neptune
For the mechanical jury rig I carried a spare...

For the mechanical jury rig I carried a spare electric as well as a kit for the mechanical pump. I rebuilt my mechanical pump a couple of years after purchasing and it is still working 25 years...
Forum: General Maintenance 01-09-2021, 11:36 AM
Replies: 4
Views: 298
Posted By Dave Neptune
Could just be a casting difference, no...

Could just be a casting difference, no biggie~~seen lots of those. Could be longer lifters so they sit higher for easier adjustment~~no biggie. Could also be a "reground cam" which would drop the...
Forum: General Interest 01-06-2021, 12:37 PM
Replies: 19
Views: 550
Posted By Dave Neptune
Exclamation Choice~~trust or worry?

Personally I trusted the A-4, my work and the modifications I made. The only gage of the 3 mounted that registered on my panel in the cockpit was the oil pressure and since it was electric I did not...
Forum: Overhaul 01-05-2021, 12:08 PM
Replies: 46
Views: 2,369
Posted By Dave Neptune
Unless the lifters are damaged don't touch. The...

Unless the lifters are damaged don't touch. The lifters wear to match the cam and should only run on the "cam lobe" it was installed in. They are now a matched set in any engine!

The cam and...
Forum: Overhaul 01-01-2021, 01:22 PM
Replies: 46
Views: 2,369
Posted By Dave Neptune
edward, my guess would be cost and the integrity...

edward, my guess would be cost and the integrity of the material behind the bore. In a fresh water cooled engine I would probably go for the bore and the little extra torque that the displacement...
Forum: Overhaul 01-01-2021, 12:55 PM
Replies: 46
Views: 2,369
Posted By Dave Neptune
If it is apart and std bearings will still work...

If it is apart and std bearings will still work GO $ THE NEW, worth the money! :rolleyes:

Get the bore info, it may not really be necessary to bore. Perhaps a clean up hone will do it and save the...
Forum: Overhaul 01-01-2021, 11:45 AM
Replies: 46
Views: 2,369
Posted By Dave Neptune
Yes the piston and rings are sized to the bore....

Yes the piston and rings are sized to the bore. You can go .005" over on the rings when a "clean -up" bore is done, which means the piston is .005 under which is somewhat acceptable.

Again how...
Showing results 1 to 25 of 500

 
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