Cruisers Forum

Join CruisersForum Today

Thread Tools Rate Thread Display Modes
Old 13-07-2009, 08:03   #16
cat herder, extreme blacksheep
zeehag's Avatar

Cruisers Forum Supporter

Join Date: Jul 2008
Location: furycame alley , tropics, mexico for now
Boat: 1976 FORMOSA yankee clipper 41
Posts: 18,004
Images: 56
Send a message via Yahoo to zeehag Send a message via Skype™ to zeehag
wooooohoooo---celebrate it !!!!!!! have fun!!!!!!! awesome .....

zeehag is offline   Reply With Quote
Old 13-07-2009, 09:03   #17
Registered User

Join Date: Jun 2009
Posts: 6
I was figuring about two times the cost of the engine. Great info, thanks.

keysdisease2 is offline   Reply With Quote
Old 13-07-2009, 11:25   #18
Senior Cruiser
sneuman's Avatar

Cruisers Forum Supporter

Join Date: May 2003
Location: Jamaica
Boat: Tayana 37 Cutter
Posts: 3,167
Images: 37
I'm with Gord. If it ain't broke, don't fix it. If I were starting from scratch, I'd go diesel without hesitation, but A4s seem like good engines.
Voyage of Symbiosis:
sneuman is offline   Reply With Quote
Old 13-07-2009, 12:30   #19
Moderator Emeritus
Pblais's Avatar

Join Date: Mar 2003
Location: Hayes, VA
Boat: Gozzard 36
Posts: 8,700
Images: 15
Send a message via Skype™ to Pblais
I also think Gord has it right. Unless the rest of the boat is near perfection I would tend to say dump the boat as someone else will think the A4 is fine since it runs as is.

You then can get a better boat saving time doing a full engine refit. If it was only the engine that was an issue and nothing else in the boat was worth changing then I probably would still agree with Gord because you have no problem. That big a change on that old a boat just can't have the bang for the money that another boat could. I don't see how you can make out ahead financially. A working engine in a boat could sell for a decent price then you add the money for the re powering (to include the whole works as noted above) and see what that can buy you. Then add anything you really like about the boat and subtract all the negatives and things needed replacemnt just around the corner.

The money needs to add up even if some of it is a bit subjective.
Paul Blais
s/v Bright Eyes Gozzard 36
37 15.7 N 76 28.9 W
Pblais is offline   Reply With Quote
Old 14-07-2009, 08:03   #20
Registered User

Join Date: Jun 2009
Posts: 6
Great advice. Great Forum. Thanks
keysdisease2 is offline   Reply With Quote
Old 26-07-2009, 14:33   #21
Moderator... short for Cat Wrangler
sarafina's Avatar

Cruisers Forum Supporter

Join Date: Jul 2009
Location: San Francisco
Boat: Cal 28 Flush Deck
Posts: 5,559
Images: 56
We looked at a wonderful Erickson 30 and it had a very dead Atomic4/Universal on it. In researching what would be involved in repairing or replacing it we discovered, from a number of salty sources, that the original gaskets were auto grade, not marine, and that marinas are littered with them, head gaskets blown and no replacements available...

As long as it runs, that's great, but I guess if that head ever goes your are pretty much screwed...

ain't what ya do, it's the way that ya do it...
sarafina is offline   Reply With Quote
Old 26-07-2009, 15:10   #22
Registered User

Join Date: Dec 2007
Posts: 156
Please read this about Gas vs. Diesel. My vote is to find another A4 in good shape or rebuild the existing. Unless you're going cruising.

Marine Engines : Power Options - Gas Versus Diesel

Power Options: Gas -vs- Diesel Part II - by David Pascoe, Marine Surveyor on Marine Engines
night0wl is offline   Reply With Quote
Old 26-07-2009, 20:32   #23
Registered User

Join Date: Apr 2008
Location: Manchester Washington
Boat: Irwin- Barefoot 37CC (Custom MK V) "Quest"
Posts: 159
sarafina, I think someone is yanking your chain. There are regular gaskets, metal gaskets, and specialty gaskets etc, but I have never heard of a marine gasket for an engine. Diesels have high compression, and most auto gas engines have a much higher compression than an old Atomic 4, so no marine gasket was required for the a-4. As a mater of fact, I am not familiar with any special head problems with that engine. Head gaskets if blown can be easily hand made from gasket stock by any good mechanic. The engine's weakest feature is its 2 bearing main crankshaft with no intermediate bearings, and that has not been known to be a problem.

Have fun

Joe S

The A-4 can still be found and are easily rebuilt, and a number of shops specialize in that. The engine was used everywhere because it was cheap and reliable, and today there are several diesels that are a straight drop ins as a replacement. Universal makes one themselves from a kabota diesel.
svquest2 is offline   Reply With Quote
Old 30-07-2009, 21:27   #24
Registered User

Join Date: Jun 2009
Posts: 6
The articles by David Pascoe are very interesting and give another and thoughtful perspective on the issue. Thanks nightOwl.
keysdisease2 is offline   Reply With Quote
Old 07-08-2009, 15:25   #25
Registered User

Join Date: Aug 2009
Location: New Jersey
Boat: Tartan 30
Posts: 1
I repowered my Tartan 30 from an A-4 to a Yanmar 3ym30 and have no regrets. I worked alot on the A-4 and bonded with it, but my family thought we ought to actually sail the boat. When the head gasket blew I could 1)repair, 2) replace with a rebuild or 3) repower with a diesel. Since I was planning long cruises I decided to go with a diesel. I looked at the so-called Universal "drop in" replacements but they only share the A-4 footprint. The fuel system, exhaust system and engine cover would all have to be replaced whichever diesel I chose, so I went with my mechanic's recommendation of the Yanmar. It was not quite twice the cost of the engine when installed. Perhaps It would have been financially smarter to have bought a new boat already diesel powered, but none of us have our boat because they are great investments.

If you stick with the A-4 get the service manual from Moyer Marine. Don Moyer knows more about the engine than anyone.

Fordo is offline   Reply With Quote

Thread Tools
Display Modes Rate This Thread
Rate This Thread:

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
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Similar Threads
Thread Thread Starter Forum Replies Last Post
Boater's Swap Meet/Flea Market svHyLyte Cruising News & Events 15 01-10-2016 06:34
Private Yacht-Swap: Poll Pelagic Fishing, Recreation & Fun 15 30-06-2012 14:56
Swap NZ House for Catamaran? Wellington Multihull Sailboats 6 24-06-2012 14:14
Mooring Swap - Manhattan for LI Sound Joe500 Atlantic & the Caribbean 7 15-06-2009 03:51
Marine Swap Meets/Flea Markets? Zach Off Topic Forum 7 16-03-2008 09:25

Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -7. The time now is 15:12.

Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2018, vBulletin Solutions, Inc.
Social Knowledge Networks
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2018, vBulletin Solutions, Inc.

ShowCase vBulletin Plugins by Drive Thru Online, Inc.