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Subject Author Date
Drat! SteveB 03-22-2008
Posted by RoyJ on March 24, 2008, 9:15 am
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 The normal flushing procedure is to dump a can of a radiator flush
concentrate in the engine, bring it up to operation temp, let it sit for
10 to 30 minutes, then flush with clean water until it runs clear. You
especially want to open any block drains to flush out the crud that
accumulates in the lower passages. It's not uncommon to need to use a
coat hanger in the block drain holes to get the passageway opened up
enough to flow.

In your case, I'd be tempted to put the unrepaired radiator back on, do
the radiator flushing with the leak, then get it repaired.

SteveB wrote:
>
>>> I would also suggest you combine the rad rebuild with a proper block
>>> flush before refilling
>
> How does one go about that? I had thought I'd take off the thermostat neck,
> get a new thermostat while I'm in there, and just flush water through to get
> out the big stuff. Then, after I seal everything up, buy a product for rad
> flushing. Tips appreciated. When I drained, it, it had remarkably
> green/clearish liquid. But I do see some rust and crud in the passages.
> Might as well do all this while it's apart.
>
> Steve
>
>

Posted by Martin H. Eastburn on March 23, 2008, 11:30 pm
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 Solder that is used with irons are not hard enough and strong enough.
They also melt and dissolve with the hot fluids.

Normally the cores are Silver Soldered. or Hard solder as it is called.

Have to use a torch to solder with it.

Martin

Martin H. Eastburn
@ home at Lions' Lair with our computer lionslair at consolidated dot net
TSRA, Endowed; NRA LOH & Patron Member, Golden Eagle, Patriot's Medal.
NRA Second Amendment Task Force Charter Founder
IHMSA and NRA Metallic Silhouette maker & member.
http://lufkinced.com/


SteveB wrote:
>>> On Fri, 21 Mar 2008 22:09:38 -0800, "SteveB"
>>>
>>>> Took the carb off the SA 200 today and found the offending clogged port.
>>>> Put it back together. Was running really good.
>>>>
>>>> Then TWANG!
>>>>
>>>> Something fell into the fan and it threw it into the radiator causing a
>>>> hole. Looked under the engine, and it was half a lock washer. I have no
>>>> clue where it vibrated from, probably somewhere around the shroud. I'll
>>>> take the radiator to Vegas Wednesday where the best radiator man I know
>>>> has
>>>> a shop.
>>>>
>>>> It's always something.
>>>>
>>>> In the meantime, I have just put it all on hold and am working on other
>>>> home
>>>> projects.
>>>>
>>>> Steve
>>>>
>>> You simply cant use acid core solder to patch the hole?
>>>
>>> Gunner
>> I have successfully repaired radiator holes with JB Weld as well as with
>> solder.
>>
>> Don Young
>
> I tried some solder I use for pipes, but it wouldn't work. I will buy some
> acid core today and try that. I did use flux, too, but no dice. My MAPP
> gas torch was acting up, so had to use propane/ox cutting torch at a very
> low setting. May buy a new valve today, too.
>
> Steve
>
>


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