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Search: Posts Made By: jcwright
Forum: Troubleshooting 09-21-2021, 12:33 PM
Replies: 6
Views: 418
Posted By jcwright
Hello Chuck. You may already have this...

Hello Chuck.

You may already have this information from one of Moyer's answers to an FAQ about water intrusion, but just in case you don't, I've copied part of it below. I hope this helps some. ...
Forum: Troubleshooting 07-23-2021, 01:24 PM
Replies: 15
Views: 677
Posted By jcwright
This is one of the MMI videos that surcouf...

This is one of the MMI videos that surcouf mentioned in a previous post:

https://youtu.be/DKxwfBmcTkM

It shows how to inspect the advance mechanism.

The Moyer overhaul manual is under...
Forum: Cooling System 07-22-2021, 01:30 PM
Replies: 4
Views: 365
Posted By jcwright
My temp sending unit (stamped ‘8D17’) pairs with...

My temp sending unit (stamped ‘8D17’) pairs with an Isspro gauge. I believe it is the 1/2” npt version. It takes a 7/8” wrench.
Forum: Troubleshooting 07-04-2021, 12:52 PM
Replies: 52
Views: 3,140
Posted By jcwright
There are at least two reports on the forum with...

There are at least two reports on the forum with vaguely similar symptoms -- idles ok but dies when powered up -- that were reported not to be fuel related. If I recall correctly, one of them was a...
Forum: Troubleshooting 07-03-2021, 06:39 PM
Replies: 60
Views: 2,713
Posted By jcwright
Here is a thread that includes suggestions on...

Here is a thread that includes suggestions on priming mechanical fuel pumps and other related problems:

https://www.moyermarineforum.com/forums/showthread.php?t=9607

Hopefully your persistence...
Forum: Troubleshooting 07-03-2021, 09:33 AM
Replies: 38
Views: 3,259
Posted By jcwright
Hello ando. At idle, you are probably...

Hello ando.

At idle, you are probably somewhere in the 600-1000 rpm range.

A guideline from Moyer and others is to run the engine at your normal cruising speed, then aim for oil pressure of 40...
Forum: Troubleshooting 07-03-2021, 08:54 AM
Replies: 60
Views: 2,713
Posted By jcwright
Hello wetbirks. Here is an old thread on...

Hello wetbirks.

Here is an old thread on mechanical fuel pumps that may be helpful, especially post #3 by sastanley, which includes a picture:
...
Forum: Troubleshooting 07-02-2021, 11:20 PM
Replies: 60
Views: 2,713
Posted By jcwright
You mention that you think you ran the gas tank...

You mention that you think you ran the gas tank dry. After adding fuel and opening the fuel valve, did you prime the carburetor using the priming lever on your mechanical fuel pump?
Forum: Troubleshooting 07-02-2021, 10:46 PM
Replies: 38
Views: 3,259
Posted By jcwright
Hello Ando. You probably already have this,...

Hello Ando.

You probably already have this, but if not, check this FAQ from Moyer:

https://moyermarine.com/nl12-1-17/

To increase the oil pressure, turn the adjusting screw clockwise.
...
Forum: Troubleshooting 07-01-2021, 10:06 PM
Replies: 52
Views: 3,140
Posted By jcwright
Hello again. Since no one else has...

Hello again.

Since no one else has responded yet, here are some thoughts:

Others on this forum have reported cases where the thumb test misses low compression. IMHO, a compression gauge is a...
Forum: Troubleshooting 07-01-2021, 09:14 PM
Replies: 52
Views: 3,140
Posted By jcwright
Hello catfish. Others who are far better at...

Hello catfish.

Others who are far better at remote diagnostics than I am will have suggestions for you. In the meantime, I have more questions than answers. Not trying to be picky, just trying...
Forum: Announcements 06-07-2021, 02:37 PM
Replies: 3
Views: 7,709
Posted By jcwright
Hello campbdon. The broken link is from an...

Hello campbdon.

The broken link is from an old post, before the forum migrated to its new address. I believe you can find the videos you're looking for here:
...
Forum: Troubleshooting 05-23-2021, 09:27 PM
Replies: 5
Views: 691
Posted By jcwright
Hello Bob. You may have already done all...

Hello Bob.

You may have already done all this, but just in case, I've copied below an old post by msmith10 on checking compression that I find helpful.

"I usually test the engine while its...
Forum: Troubleshooting 05-11-2021, 03:51 PM
Replies: 9
Views: 1,265
Posted By jcwright
Hello tooltime. I assume your engine is raw...

Hello tooltime.

I assume your engine is raw water cooled. Correct me if I'm wrong. Locate the hose that supplies water to the water pump. Follow it back to where it reaches the hull. You should...
Forum: General Interest 05-04-2021, 09:20 AM
Replies: 8
Views: 861
Posted By jcwright
Hello lokeypod. You may have already seen...

Hello lokeypod.

You may have already seen this, but just in case, here is Don Moyer's answer to a FAQ about installing core plugs:

FAQ’s: Cooling
Freeze-out plugs were originally installed...
Forum: Troubleshooting 05-04-2021, 09:08 AM
Replies: 3
Views: 484
Posted By jcwright
Hello svsonora. Here is a link to a short...

Hello svsonora.

Here is a link to a short thread on clearances you may find helpful:

https://www.moyermarineforum.com/forums/showthread.php?t=180

Jack.
Forum: Troubleshooting 04-22-2021, 09:50 AM
Replies: 3
Views: 567
Posted By jcwright
Hello SailingLife. Here is a link to an old...

Hello SailingLife.

Here is a link to an old thread on rotating the engine by hand:

https://www.moyermarineforum.com/forums/showthread.php?t=11213

Others who know what the access is like on...
Forum: General Interest 03-22-2021, 02:32 PM
Replies: 6
Views: 822
Posted By jcwright
Hello Michael. The top left photo on this...

Hello Michael.

The top left photo on this page claims to be a Utility 4:

http://progress-is-fine.blogspot.com/2013/09/universal-boat-motors-1938.html

Unfortunately I wasn't able to find the...
Forum: Electrical 03-15-2021, 10:22 PM
Replies: 29
Views: 2,392
Posted By jcwright
Hello Bill. This paragraph from the MMI...

Hello Bill.

This paragraph from the MMI instructions for the wiring kit mentions the R terminal I think you are referring to:

"On late model engines with Delco starters, there is an "R"...
Forum: Cooling System 03-10-2021, 04:27 PM
Replies: 4
Views: 660
Posted By jcwright
Hello Doug. You may already have this, but...

Hello Doug.

You may already have this, but in case you don't, here are the MMI instructions for installing the Moyer FWC system, with diagrams:
...
Forum: Overhaul 03-02-2021, 01:43 PM
Replies: 4
Views: 885
Posted By jcwright
Hello Dave. In addition to Bill's link, you...

Hello Dave.

In addition to Bill's link, you may find this information from MMI's instructions for installing an oil pump helpful. Notice that two thicknesses of gaskets are supplied, and that...
Forum: Overhaul 02-23-2021, 10:53 AM
Replies: 58
Views: 7,355
Posted By jcwright
Hello Greg. Here is a link to a file with a...

Hello Greg.

Here is a link to a file with a photo and measurements of an A4 that may be helpful:

https://drive.google.com/file/d/1wBURh1Iv7sl-OuiJDp1Y2-sVyKbSMINf/view?usp=sharing

I've...
Forum: Overhaul 02-05-2021, 05:08 PM
Replies: 2
Views: 498
Posted By jcwright
Hello. In the A4 parts manual the wire is...

Hello.

In the A4 parts manual the wire is described as '9" x .045'. I don't see any other information about the type of wire. I used stainless seizing wire.

Jack.
Forum: Overhaul 01-27-2021, 05:02 PM
Replies: 7
Views: 1,204
Posted By jcwright
I see this note from Don (from an earlier thread)...

I see this note from Don (from an earlier thread) in my rebuild notes; I think it is relevant to your question:

"The short answer to your question is that the alignment of the timing marks during...
Forum: Tools wanted or offered to rent 01-27-2021, 02:42 PM
Replies: 7
Views: 1,684
Posted By jcwright
FWIW, I also damaged my tool when trying to...

FWIW, I also damaged my tool when trying to compress the springs. I see in my notes this comment from Don on a possible cause of this problem:

"Over the years, varnish in the oil will...
Showing results 1 to 25 of 118

 
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