Return to the home page...

Go Back   Moyer Marine Atomic 4 Community - Home of the Afourians > Discussion Topics > Cooling System

Reply
 
Thread Tools Display Modes
  #1   IP: 207.218.101.130
Old 04-19-2011, 02:29 PM
aldodson's Avatar
aldodson aldodson is offline
Senior Member
 
Join Date: Dec 2010
Location: Seattle
Posts: 23
Thanks: 0
Thanked 0 Times in 0 Posts
Smile Acid Flush a Success!

I recently did an acid treatment and high pressure flush on our late model A4 as outlined in the Moyer manual and had great success! Prior to the flush I had temps running between 160-180 and fluctuating a fair bit b/w these two temp points. Also, a small short amount of steam would come from the exhaust when it reached the high mark. So for peace of mind it was time to investigate....

I started by adding a Moyer by-pass kit. This helped a little but didn't bring the temps or swings to rest. Then after doing the acid wash and high pressure flush the temps dropped to b/w 140-160 w/o fluctuating. I'm finding I have to struggle to get her to 160 under load and pretty wide open throttle.

A large amount of black and brownish goop flushed out in the process - so I'm pretty sure this was hampering the cooling efficiency. (I had also replaced the impeller and added a raw water strainer previously.)

Being my first time w/ the acid flush - it took me a full day to do the whole job (spread over a couple of days). But, there was lots of head scratching and searching for parts and acid (hardware stores seem to keep it stocked).

BTW - I purchased the fittings from a local plumbing supply company (Nebar Hose & Fittings here in Seattle). They were really helpful... but I made 4 trips to get all the right fittings and probably spend as much as the Moyer kit. If I did it again - I'd probably just start w/ Moyer's kit to save the headache. But, I made a good contact for fitting supplies in my hood.

I recommend taking charge of your cooling system if you haven't already!

Last edited by aldodson; 04-20-2011 at 07:42 PM.
Reply With Quote
  #2   IP: 76.127.127.4
Old 04-19-2011, 04:20 PM
dvd's Avatar
dvd dvd is offline
Senior Member
 
Join Date: Dec 2008
Location: San Joaquin Delta, California
Posts: 449
Thanks: 3
Thanked 12 Times in 8 Posts
Congratulations on a sucessful acid flush. Now you need to get out there and motor for a couple of hours and see what the temp does. Couple of more things to potentially look into in regard to a=4 cooling is a T-stat upgrade and thermostat by pass. Both can be obtained at moyer marine.

dvd
Reply With Quote
  #3   IP: 206.125.176.3
Old 04-19-2011, 04:22 PM
sastanley's Avatar
sastanley sastanley is online now
Afourian MVP
 
Join Date: Sep 2008
Location: Solomons, MD
Posts: 7,016
Thanks: 1,134
Thanked 600 Times in 442 Posts
Thumbs up

Al - I am almost on a first name basis with the hardware/plumbing store guys between the house & the boat... i am beginning to think they extended their weekend hours just for me!

nice work.
__________________
-Shawn
"Holiday" - '89 Alura 35 #109
"Twice Around" - '77 C-30, #511 with original A-4 & MMI manifold - SOLD! (no longer a two boat owner!!)
http://www.moyermarine.com/forums/signaturepics/sigpic3231_6.gif
Reply With Quote
  #4   IP: 207.218.101.130
Old 04-21-2011, 04:43 PM
aldodson's Avatar
aldodson aldodson is offline
Senior Member
 
Join Date: Dec 2010
Location: Seattle
Posts: 23
Thanks: 0
Thanked 0 Times in 0 Posts
Shawn,

Yeah - the plumbing fitting supply shop I found thinks I'm crazy. But, they have been really helpful and patient. Plus, it doesn't hurt that I bought 20 pounds of brass from them! 1/3 of their business comes from big fishing boats here in Seattle.

I found in looking for fittings that typical hardware stores carry nothing and marine supply stores have some but are expensive and not knowledgeable.

Cheers,

Alan
Reply With Quote
  #5   IP: 207.218.101.130
Old 04-21-2011, 04:49 PM
aldodson's Avatar
aldodson aldodson is offline
Senior Member
 
Join Date: Dec 2010
Location: Seattle
Posts: 23
Thanks: 0
Thanked 0 Times in 0 Posts
Lots o' water...

BTW - anybody have an tricks in keeping the water outside of the boat when doing the high pressure flush? In disconnecting the garden hoses 3 times to flush different parts - I discovered gravity. All the water in the hoses wanted to come into the boat since it was at the low point of the hose! Not to mention the water rushing out of the block as a stream of water onto everything... batteries, alternator, starter, 110v wiring, etc. I put the wet shop vac to good use!
Reply With Quote
  #6   IP: 24.61.3.16
Old 04-21-2011, 10:01 PM
mikke60 mikke60 is offline
Senior Member
 
Join Date: Jul 2007
Posts: 37
Thanks: 1
Thanked 0 Times in 0 Posts
Now would be a great time to invest in A fresh water cooling system. Got mine from Don and love it. Could not have any easier to install either. Mike
Reply With Quote
Reply

Tags
acid flush, bypass, cooling, cooling system, flush

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Procedure for acid flushing and pressure flushing Don Moyer General Maintenance 55 06-14-2022 07:55 PM
Acid Flush - thought you all should know Jesse Delanoy Cooling System 11 11-17-2010 03:31 PM
Acid Flush mccartyj General Maintenance 0 03-23-2009 07:55 PM
acid flush of Fresh water cooled engine skhorleb Cooling System 1 01-16-2007 10:07 AM
acid flush disposal question Jim Booth General Maintenance 1 09-19-2005 05:08 PM


All times are GMT -4. The time now is 06:49 PM.


Powered by vBulletin® Version 3.8.9
Copyright ©2000 - 2024, vBulletin Solutions, Inc.


Universal® is a registered trademark of Westerbeke Corporation

Copyright © 2004-2024 Moyer Marine Inc.

All Rights Reserved