atomic 4 mini explosion - Page 2 - SailNet Community
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post #11 of 43 Old 08-01-2016
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Re: atomic 4 mini explosion

Since lead has been gone from gas for more than 40 years I doubt if there are any valve seat inserts left on shelves that won't work with unleaded.

Incidentally, the problem was never with the valves, it was with cast iron seat erosion and it was a very slow process - 75K miles in bad cases.

I, myself, personally intend to continue being outspoken and opinionated, intolerant of all fanatics, fools and ignoramuses, deeply suspicious of all those who have "found the answer" and on my bad days, downright rude.
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post #12 of 43 Old 08-01-2016
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Re: atomic 4 mini explosion

Capt Len is probably spot on ... The exhaust valves in the A4 are notorious for sometimes 'sticking' and not fully closing due to 'rusty' valve stems, - especially if the engine has been long term stored in 'humid' environment and the engine wasn't properly 'prepped' for long term lay-up.
A squirt of penetrating oil on the stems and valve stem guides, and a good whack with hammer - or a bent 'iron' shoved into the 'spark plug hole', usually does the 'trick'.

Tetra-ethyl-Lead was added to gasoline to increase the octane value; plus, to provide a very thin 'cushioning layer' on the valve and valve seat faces, so you didn't 'hammer'/deform them into oblivion. Hardened faces and better and closer 'tolerances' have solved the 'hammering' problem.

Last edited by RichH; 08-01-2016 at 01:53 PM.
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post #13 of 43 Old 08-01-2016
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Re: atomic 4 mini explosion

40 years?? doesn't time go by when you're not counting. Even the early '60 's need a valve job by now
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post #14 of 43 Old 08-01-2016
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Re: atomic 4 mini explosion


Sal Paradise - Armchair Circumnavigator

Senior Researcher - Dunning Kruger
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post #15 of 43 Old 08-01-2016 Thread Starter
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Re: atomic 4 mini explosion

Quote:
Originally Posted by JimsCAL View Post
Is the same guy that was going to tow the Mac 65 Zeus to Miami?
well it wasn't me but I was going to help. Partially in light of the responses of this forum, I did not help, as a result of lack of knowledge on the part of those who towed her, that boat was improperly anchored, dragged into a boat lift, impaled, sunk, salvaged at the tune of 25k to the city of fort lauderdale taxpayers, and they will never get it back no matter how hard they try. Im sure sailors and anchoring and all that got a bad name in the process. Would that have happened had I Been there? Absolutely not. But sailnet party poopers among other things convinced me not to go... anyway ets leave that topic at rest.

I'm a friend of the girls who own it, and I am helping her with the boat.

perhaps if the sailnet community is this time helpful rather than simply dismissive, rude or even wrongly accusative a few very nice and pretty in their 20s girls will not accidentally blow themselves up

Last edited by HMSVictory; 08-01-2016 at 05:20 PM.
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post #16 of 43 Old 08-01-2016
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Re: atomic 4 mini explosion

Get an auto mechanic to go over the motor and tell them what they need to do. A more expensive marine mechanic is not what is needed for a gasoline engine.

Replace the mainsail, with a good used sail or new, and when funds are available a headsail.
Check the electrics including charging and navigation lights, and make needed repairs.
Check hull integrity including keel, through hulls, chain plates....
Check bottom paint/barrier coat.

They may have got a bargain but it is still going to cost to maintain.
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post #17 of 43 Old 08-01-2016 Thread Starter
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Thanks for the mechanic advice. I'm sure they can find someone cheap. Sadly they didn't get a bargain. The (many explicitives left out) wanted 6 grand for the Royal POS, and when no one would give anywhere near he ended up "letting her go " to a friend for 2500 . In my estimation a no more than 1000 dollar boat.... But she likes the boat and it is nice. Well do our best to fix it

Last edited by HMSVictory; 08-01-2016 at 06:29 PM.
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post #18 of 43 Old 08-01-2016 Thread Starter
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Quote:
Originally Posted by Lazerbrains View Post
Quote:
Originally Posted by JimsCAL View Post
Is the same guy that was going to tow the Mac 65 Zeus to Miami?
I remember back when he was going to sail a Sunfish for 60 miles in one day - I wonder whatever became of that adventure???
I am not that guy... But do not mock what you only incapable of ! I could do it if I had to! I imagine A lot of people on here could as well
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post #19 of 43 Old 08-01-2016
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Re: atomic 4 mini explosion

I hope she has clear title and current state registration?
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1970 Havsfidra 20 by Fisksatra
On the Delaware River at Fox Grove Marina Essington PA
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post #20 of 43 Old 08-01-2016 Thread Starter
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Quote:
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I hope she has clear title and current state registration?
Oh yes this she can claim!
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