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Search: Posts Made By: Dave Neptune
Forum: Troubleshooting Today, 02:11 PM
Replies: 33
Views: 593
Posted By Dave Neptune
If you are going to keep running do monitor that...

If you are going to keep running do monitor that crack for any expansion. I would also go a bit easy and really listen for "new noises" as those noises could be what was doing the cracking.

Fude...
Forum: Troubleshooting Today, 10:25 AM
Replies: 33
Views: 593
Posted By Dave Neptune
Rob, be very careful here. Make sure that the...

Rob, be very careful here. Make sure that the crack does not go through the "seals" bosses. You could still have a crack around the seal leaking and not actually the seal and that could be a bit...
Forum: Troubleshooting Today, 09:44 AM
Replies: 4
Views: 223
Posted By Dave Neptune
What Al said and a thermostat can get sticky too,...

What Al said and a thermostat can get sticky too, albeit rare. Look for some debris under the "exit fitting" on the manifold, this is a common collection point too.

Dave Neptune :cool:
Forum: Good Guys 07-18-2019, 11:33 AM
Replies: 16
Views: 291
Posted By Dave Neptune
Joe, in my grandfathers garage he cleaned...

Joe, in my grandfathers garage he cleaned everything with diesel (kerosene). Really took off the gunk left by the old nondetergent oils. We would even ran many overhead engines without oil and...
Forum: Fuel System 07-18-2019, 11:26 AM
Replies: 15
Views: 330
Posted By Dave Neptune
Smile Yum Yum

AAaaahhhhh, liquid bread. Thanx Jerry

Dave Neptune :cool:
Forum: Troubleshooting 07-17-2019, 08:00 PM
Replies: 5
Views: 202
Posted By Dave Neptune
j, your "sudden" drop in power does not indicate...

j, your "sudden" drop in power does not indicate a wear problem like the rings. You probably have stuck valves. Do a compression check again and then do another with a bit of oil sprayed into the...
Forum: Fuel System 07-17-2019, 12:12 PM
Replies: 15
Views: 330
Posted By Dave Neptune
Thumbs up I'll vote for the mead, is it...

I'll vote for the mead, is it raspberry:rolleyes:?

It is surprising just how often these O-rings cause havoc:eek:!

Dave Neptune :cool:
Forum: Good Guys 07-17-2019, 12:07 PM
Replies: 16
Views: 291
Posted By Dave Neptune
Smile Choices

John, none of the "installation" work is particularly difficult. The difficulty in approaching the "installation project" is to not look at the big picture but to just do the "jobs" one at a time....
Forum: Drive Train / Propellers 07-12-2019, 05:52 PM
Replies: 17
Views: 911
Posted By Dave Neptune
Greg, my ole E-35 MKII idled at about 15" of vac...

Greg, my ole E-35 MKII idled at about 15" of vac but at cruise I got 2100RPM's @ 6~7" of vac with the Indigo. I could go much harder when necessary but why bother as I was getting 6.2 kts with a...
Forum: Troubleshooting 07-11-2019, 10:12 AM
Replies: 33
Views: 593
Posted By Dave Neptune
Also check under the water pump as there is a...

Also check under the water pump as there is a seal to the crankcase too.

When looking with a mirror or camera look for a clean path to the drip that will lead you to the leak as the leak will...
Forum: Troubleshooting 07-11-2019, 09:48 AM
Replies: 33
Views: 593
Posted By Dave Neptune
That is a lot of "leakage" and may just be...

That is a lot of "leakage" and may just be leaking under pressure at the rear seal, a good first place to look. There are a couple of oil galley access points on the carb side of the block and the...
Forum: Troubleshooting 07-10-2019, 06:01 PM
Replies: 22
Views: 576
Posted By Dave Neptune
JXP, you stated the plug had a black residue....

JXP, you stated the plug had a black residue. This leads me to think you are just to rich and after a while (updraft carb!) the engine just floods out. Once it sits the excess fuel evaporates out of...
Forum: Troubleshooting 07-10-2019, 04:59 PM
Replies: 13
Views: 374
Posted By Dave Neptune
Wiring??

Try checking the gage connections if an electric gage. I always mounted a "static" gage on a tee with the electric sender. If the cockpit gage dropped or changed I could confirm by a quick check of...
Forum: Troubleshooting 07-10-2019, 09:57 AM
Replies: 13
Views: 374
Posted By Dave Neptune
Why are you worried about the oil pressure? 25 is...

Why are you worried about the oil pressure? 25 is just fine and the pressure has nothing to do with what gear your in. RPM's, wear and heat are contributing factors for oil pressure as well type and...
Forum: Cooling System 07-02-2019, 10:06 AM
Replies: 5
Views: 307
Posted By Dave Neptune
Jim, the back of the engine will always run a bit...

Jim, the back of the engine will always run a bit warmer as the water is injected at the bottom in the middle of the block however the water all exits out of the back end causing a bit of resistance...
Forum: General Interest 06-26-2019, 11:02 PM
Replies: 127
Views: 33,956
Posted By Dave Neptune
Wink Nicely done or sure. Amazing accomplishment for a...

Nicely done or sure. Amazing accomplishment for a bit of labor.

Dave Neptune :cool:
Forum: Troubleshooting 06-26-2019, 10:58 PM
Replies: 3
Views: 161
Posted By Dave Neptune
Infy, reverse is accomplished via a planetary...

Infy, reverse is accomplished via a planetary drive (thus the reduction) and maintaining pressure against the band. The planetary gears are VERY NOISEY when you bring the rpm's up and remember there...
Forum: Testing Protocols 06-23-2019, 10:44 AM
Replies: 6
Views: 264
Posted By Dave Neptune
Great way to mount. Don't like seeing them on...

Great way to mount. Don't like seeing them on good running well maintained A-4's. I do like seeing them on engines with issues for diagnostics.

I too have used a spark plug for checking spark...
Forum: Introductions 06-20-2019, 02:47 PM
Replies: 3
Views: 292
Posted By Dave Neptune
AJ, welcome to the MMI Forum. Does your...

AJ, welcome to the MMI Forum.

Does your engine have a "scavenge tube"? A rich running engine can produce gas smells.

What year (model) is your A-4?

Lots of info on this sie.

Dave Neptune...
Forum: Ignition System 06-20-2019, 10:14 AM
Replies: 7
Views: 288
Posted By Dave Neptune
I agree with Tom. Something catastrophic for the...

I agree with Tom. Something catastrophic for the EI happened. I have R&R'd many a failed units of various EI's over the years and the worst I have seen was an external scorch on the unit a few times....
Forum: Wanted to Buy - Engines and Engine Parts 06-19-2019, 10:18 AM
Replies: 6
Views: 358
Posted By Dave Neptune
Oops

vonhein, welcome to the MMI Forum.

Dave Neptune :cool:
Forum: Wanted to Buy - Engines and Engine Parts 06-19-2019, 10:17 AM
Replies: 6
Views: 358
Posted By Dave Neptune
There were no vac advances supplied with the A-4...

There were no vac advances supplied with the A-4 as it is a load duty engine!

If you do find the dist of your choice go for the EI unless it has a "new out of the box cam" as setting of the points...
Forum: Fuel System 06-19-2019, 10:11 AM
Replies: 7
Views: 393
Posted By Dave Neptune
Cool Jet removal?

Guys, remember the jet is the smallest orifice in the fuel stream so with a good air gun the jets passages can be blown free of gunk and debris in the passages by blowing through the jet in both...
Forum: Exhaust System 06-13-2019, 10:47 PM
Replies: 6
Views: 257
Posted By Dave Neptune
John, there are probably many was to patch but I...

John, there are probably many was to patch but I would onl do so in an emergency.

Also think about exhaust gasses in the cabin.

Dave Neptune :cool:
Forum: Cooling System 06-13-2019, 02:47 PM
Replies: 31
Views: 985
Posted By Dave Neptune
Ernst, when you shut it down check the spark...

Ernst, when you shut it down check the spark again to be sure it is still the "snappy blue" spark you started with. Check it cold and keep the stuff around so you can again immediately after running....
Showing results 1 to 25 of 500

 
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