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Forum: Overhaul 03-23-2024, 04:13 PM
Replies: 0
Views: 218
Posted By harryslimm
Pics - Multiple Engine Rebuild 2023-24

Rebuilding two engines at one time (don't ask). Here are some random pictures from along the way:

https://www.moyermarineforum.com/forums/album.php?albumid=227
Forum: Introductions 03-22-2024, 01:36 PM
Replies: 3
Views: 305
Posted By harryslimm
"Hello, My Name Is....."

....Harry.

I've had boats with Atomic4s in them since the "90"s but never did a total rebuild. Now I'm doing two simultaneously.

I believe I bought a short block from MMA4 in another life a...
Forum: Troubleshooting 03-21-2024, 03:04 PM
Replies: 34
Views: 956
Posted By hanleyclifford
I think you are right. All batt connections...

I think you are right. All batt connections should be inspected including the ground path to the engine.
Forum: Exhaust System 03-21-2024, 01:34 PM
Replies: 16
Views: 3,159
Posted By hanleyclifford
The flange is rusty because it is the anode in a...

The flange is rusty because it is the anode in a galvanic cell. Notice how perfect the ss cap screws appear. Even the 1/8" plug looks good.
Forum: Troubleshooting 03-21-2024, 12:28 PM
Replies: 34
Views: 956
Posted By hanleyclifford
What sort of alternator do you have? The old...

What sort of alternator do you have? The old Motorola and Prestolite have "internal" regulators which are actually external appendages. Those regulators can be removed and the field wire fed from an...
Forum: Troubleshooting 03-21-2024, 11:20 AM
Replies: 34
Views: 956
Posted By hanleyclifford
17 volts is excessive for many things in the...

17 volts is excessive for many things in the system, not just the coil. I would start with a voltage regulator that has a potentiometer so you can adjust the voltage to around 14 volts at alt +. Your...
Forum: Troubleshooting 03-21-2024, 11:09 AM
Replies: 34
Views: 956
Posted By Dave Neptune
First welcome to the MMI Forum. That's not...

First welcome to the MMI Forum.

That's not good at all. Definitely replace the regulator 17V is way to high and could even of possibly killed the battery. Also charge the battery up and get it...
Forum: Exhaust System 03-19-2024, 05:09 PM
Replies: 16
Views: 3,159
Posted By hanleyclifford
As matter of course you should never torque an...

As matter of course you should never torque an attachment to an iron casting with a cap screw which strains the threads inside the casting. Always use studs - and always of the same material as the...
Forum: General Interest 02-28-2024, 06:51 PM
Replies: 16
Views: 318
Posted By joe_db
The engine definitely has hotter and colder areas:

The engine definitely has hotter and colder areas:
Forum: General Interest 02-28-2024, 03:24 PM
Replies: 16
Views: 318
Posted By hanleyclifford
I think Shawn got away with his system design for...

I think Shawn got away with his system design for two important reasons. 1) He did the Thatch Modification which ensured that his manifold was always flush with coolant thus modulating the rate of...
Forum: General Interest 02-27-2024, 10:26 PM
Replies: 16
Views: 318
Posted By sastanley
eliminating the bypass on FWC

So, one of the things I did on my A4 was eliminate the bypass when I went to FWC.
For context, my electric circulation pump for the antifreeze had a 3/4" hose output, so I upsized the hole in the...
Forum: Announcements 02-22-2024, 04:55 PM
Replies: 2
Views: 180
Posted By B Moyer
Forum update reply

All,
This may be the only noitce we will be able to give you. However, be assured if we get advanced notice we will do our best to notify the forum too.
Forum: Announcements 02-22-2024, 01:02 PM
Replies: 2
Views: 180
Posted By B Moyer
ATTENTION - ATTENTION - ATTENTION

Hello Afourians!

Please note that we will be doing an update to our forum sometime in early March. The update will cause the forum to be unavailable for at least 1 week, perhaps longer as we...
Forum: General Maintenance 02-12-2024, 07:38 PM
Replies: 18
Views: 794
Posted By hanleyclifford
The studs should be clean above the coarse...

The studs should be clean above the coarse threads (where they have been coated with Permatex #2, or some other puppy poo concoction) , but the fine threads on top should be cleaned and oiled with...
Forum: General Maintenance 02-12-2024, 12:51 PM
Replies: 18
Views: 794
Posted By Dave Neptune
There is really no necessity for gasket sealer on...

There is really no necessity for gasket sealer on the manifold to block and sealer should not be used on the exhaust gasket. However my personal preference on any old marine engine is to use Permatex...
Forum: Reversing Gear 02-02-2024, 09:53 AM
Replies: 21
Views: 22,809
Posted By ndutton
From Don: To open up his neutral zone a bit,...

From Don:
To open up his neutral zone a bit, it’s best to back off on the reverse adjustment a half turn or so – not a tooth or so on the forward adjusting collar.
Forum: Electrical 01-22-2024, 05:25 PM
Replies: 12
Views: 587
Posted By Dave Neptune
As Hanley points out more often than not problems...

As Hanley points out more often than not problems on marine DC systems are often found on the negative side as it "completes" the path. The negative side also is often overlooked by many backyard...
Forum: General Maintenance 01-14-2024, 03:27 PM
Replies: 18
Views: 794
Posted By Dave Neptune
Did you fix the mentioned leak and start the...

Did you fix the mentioned leak and start the engine to see if the problem went away?

If it is still steaming then you will need to remove the manifold to see if a stud is leaking and inspect the...
Forum: General Maintenance 01-11-2024, 10:06 PM
Replies: 18
Views: 794
Posted By hanleyclifford
Odds are good that one or more of those studs...

Odds are good that one or more of those studs will come out of the block. If that happens check the threads and if there is any question replace the studs and set the new ones with thick Permatex....
Forum: General Maintenance 01-08-2024, 09:26 PM
Replies: 18
Views: 794
Posted By hanleyclifford
Yes, and those studs should be checked for loss...

Yes, and those studs should be checked for loss of material / thread. 4 threads minimum should remain, and I always set the stud with thick Permatex.
Forum: Troubleshooting 12-28-2023, 06:45 PM
Replies: 28
Views: 7,236
Posted By Easy Rider
Seems to me the problem could be that your not...

Seems to me the problem could be that your not getting enough water through to the engine when the rev's are up and under load. I would begin by simplifying the set up you have between the through...
Forum: Introductions 12-28-2023, 11:25 AM
Replies: 25
Views: 2,443
Posted By Dave Neptune
As Hanley stated it is not a good idea to combine...

As Hanley stated it is not a good idea to combine the engine intake with ANYTHING else. The engine could easily have sucked in anything that went into and down the cockpit drains especially hair. I...
Forum: Introductions 12-28-2023, 10:41 AM
Replies: 25
Views: 2,443
Posted By hanleyclifford
I have had good results with this outfit: ...

I have had good results with this outfit: https://sen-dureproducts.com/
Forum: Troubleshooting 12-27-2023, 08:39 PM
Replies: 28
Views: 7,236
Posted By Leon_vanos
Update on the engine. I replaced the seacock...

Update on the engine.
I replaced the seacock and have very good water flow now coming out while the seacock is open (so no blockage in the seacock or through hull) my engine is running a lot cooler...
Forum: Introductions 12-27-2023, 05:15 PM
Replies: 25
Views: 2,443
Posted By sastanley
Hi Will, welcome to the forum. Agree with Joe &...

Hi Will, welcome to the forum. Agree with Joe & Hanley's recommendations..sometimes just the engine vibration is enough to break that nipple with the oil pressure parts. You can use hydraulic...
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