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Search: Posts Made By: edwardc
Forum: Troubleshooting 10-15-2021, 11:47 AM
Replies: 27
Views: 733
Posted By edwardc
This seems way too low. When you checked the...

This seems way too low. When you checked the spark, was it a snappy blue one or a weak yellow? A weak yellow spark in open air will likely not fire under compression, as the breakdown voltage of...
Forum: Cooling System 10-08-2021, 11:50 AM
Replies: 1
Views: 187
Posted By edwardc
Cutting hoses off of a barb fitting runs the risk...

Cutting hoses off of a barb fitting runs the risk of scratching or nicking the barb, which will cause persistant slow leaks later. Instead, use a heat gun. Or a hair dryer. Once heated a little...
Forum: General Interest 09-14-2021, 12:22 PM
Replies: 8
Views: 617
Posted By edwardc
Glad to hear it! These days, when someone...

Glad to hear it! These days, when someone abruptly drops off the net, we start to worry.
Forum: Cooling System 09-13-2021, 10:25 AM
Replies: 28
Views: 1,486
Posted By edwardc
I found this mini pick set to be very useful in...

I found this mini pick set to be very useful in digging out old packing:

https://www.harborfreight.com/mini-pick-and-hook-set-63697.html
Forum: Cooling System 09-10-2021, 09:41 AM
Replies: 28
Views: 1,486
Posted By edwardc
Aha! I think we have a clue. You probably have...

Aha! I think we have a clue. You probably have the wrong diameter packing, rather than too much. Properly sized packing should take three rings of packing. I had something similar happen when I...
Forum: Cooling System 09-07-2021, 04:14 PM
Replies: 28
Views: 1,486
Posted By edwardc
The nut and shaft should be 10-20 degrees F above...

The nut and shaft should be 10-20 degrees F above the ambient water temp. Keep loosening.
Forum: General Interest 09-07-2021, 11:31 AM
Replies: 5
Views: 678
Posted By edwardc
I wonder what fuel those diesel boats use for...

I wonder what fuel those diesel boats use for their dinghy engines, and where and how they store it.
Forum: Exhaust System 08-30-2021, 10:57 PM
Replies: 2
Views: 597
Posted By edwardc
Once the water's injected, the exhaust temp...

Once the water's injected, the exhaust temp should be reduced, so any length of rubber hose should be fine, as long as you can physically manipulate it into place. If the hose is really short, you...
Forum: Fuel System 08-21-2021, 11:07 AM
Replies: 5
Views: 593
Posted By edwardc
My thought is that that worm gear didn't wear out...

My thought is that that worm gear didn't wear out all at once. It probably started slipping, one tooth at a time, until gradually it got worse and worse and finally stopped. The slipping would have...
Forum: Troubleshooting 08-21-2021, 10:53 AM
Replies: 13
Views: 1,042
Posted By edwardc
The "black thing" is the magnetic collar that...

The "black thing" is the magnetic collar that provides timing pulses to the electronics module. It is just press-fit onto the shaft and should pull off. Be careful if you have to pry with...
Forum: General Interest 08-18-2021, 11:51 AM
Replies: 15
Views: 1,057
Posted By edwardc
When I purchased our boat, one of the very first...

When I purchased our boat, one of the very first projects I did on it was to install a galvanic isolator (http://www.chessie.com/boat/projects.shtml#GalvanicIsolator). It was very easy. We traveled...
Forum: General Interest 08-12-2021, 01:11 PM
Replies: 14
Views: 1,133
Posted By edwardc
I want to second the reliability of a...

I want to second the reliability of a well-maintained A4. Shortly after purchase, we replaced our badly maintained A4 with a rebuilt short block from MMI in 2010. Since then, we’ve put almost 2000...
Forum: Troubleshooting 08-09-2021, 09:58 AM
Replies: 24
Views: 1,507
Posted By edwardc
i think that the connection between the water...

i think that the connection between the water outlet of the jacketed pipe and the water injection point needs to have an anti-siphon valve in-between. The anti-siphon valve should be located as high...
Forum: Drive Train / Propellers 08-06-2021, 06:04 PM
Replies: 3
WOT
Views: 556
Posted By edwardc
Not really a direct comparison, but I run a...

Not really a direct comparison, but I run a 3-blade 15x8 fixed prop through a 2:1 v-drive, and I can achieve 3100 rpm in gear at WOT, pushing my 13,000 lb P323 at about 6 1/2 kts.
Forum: Troubleshooting 08-02-2021, 10:09 PM
Replies: 10
Views: 892
Posted By edwardc
When cleaning the jets, you must physically put a...

When cleaning the jets, you must physically put a small wire through the opening. Mearly spraying carb cleaner or compressed air through it will not cut it.
Forum: Overhaul 07-12-2021, 08:09 AM
Replies: 18
Views: 1,094
Posted By edwardc
You're quite welcome. Yes, it is...

You're quite welcome.



Yes, it is needed. I have one, purchased from our host here (https://moyermarine.com/product/anti-siphon-kit-ktas_01-2_318/).
After shutdown, a hot engine cools, cooling...
Forum: Overhaul 07-11-2021, 10:31 AM
Replies: 18
Views: 1,094
Posted By edwardc
I agree with Dave. Your water injection is too...

I agree with Dave. Your water injection is too high. It should be at least 4" below the high spot on the dry stack. You're going to continue to get water in the manifold with that setup.

I would...
Forum: Troubleshooting 07-09-2021, 12:33 PM
Replies: 52
Views: 3,180
Posted By edwardc
John beat me to it. Indications are that you are...

John beat me to it. Indications are that you are running way too rich.

Since you've swapped out the carb, fuel tank and eliminated the pump, It's got to be something else that's in common to all...
Forum: Drive Train / Propellers 07-03-2021, 01:54 PM
Replies: 8
Views: 863
Posted By edwardc
A 3/4” thick circular steel spacer with three...

A 3/4” thick circular steel spacer with three through holes and a little depression in the center to mate with the coupler face should be an easy diy build for a hobbiest with a lathe and a drill...
Forum: Troubleshooting 07-02-2021, 12:19 PM
Replies: 52
Views: 3,180
Posted By edwardc
If you have a Facet fuel pump, it sure sounds...

If you have a Facet fuel pump, it sure sounds like the notorious "stuck ball" problem, resulting in fuel starvation.

The test and temp fix is simple. Remove the bayonet bottom of the fuel pump. ...
Forum: Drive Train / Propellers 06-30-2021, 11:07 AM
Replies: 8
Views: 863
Posted By edwardc
Hi brian. Welcome to the forum! I think you'll...

Hi brian. Welcome to the forum! I think you'll find this one of the most helpful and friendly places on the internet for all things A4.

The Auto Prop sounds like a good idea. Reverse on an A4...
Forum: Cooling System 06-21-2021, 10:25 PM
Replies: 14
Views: 1,086
Posted By edwardc
A fresh water cooling system (FWC) will not help...

A fresh water cooling system (FWC) will not help with an exhaust water reflux problem as the FWC system still uses raw water to cool the exhaust.

I know the Catalina's are severely height limited,...
Forum: Overhaul 06-15-2021, 11:05 AM
Replies: 2
Views: 589
Posted By edwardc
Yes, with a couple of caveats when trying to use...

Yes, with a couple of caveats when trying to use an early model block with late model parts. The two big ones I know of are:


Oil Fill - The early block engines had an oil fill cap on the...
Forum: Electrical 06-14-2021, 10:42 AM
Replies: 6
Views: 420
Posted By edwardc
More than enough. If I recall correctly (not...

More than enough. If I recall correctly (not guaranteed), the A4 only takes around 60A to crank. I use a small U1 size battery (PWC/motorcycle) as my start battery, and they typically have less...
Forum: Electrical 06-12-2021, 11:37 AM
Replies: 8
Views: 835
Posted By edwardc
A corroded connection can introduce a resistance...

A corroded connection can introduce a resistance into the circuit. When measuring with the voltmeter, which draws almost no current, a full 12V is read at the wire endss. But as soon as you apply a...
Showing results 1 to 25 of 500

 
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