On Mon, 1 Mar 1999 13:16:41 -500, you wrote:
>> From: Banjomike@aol.com
>> Date: Mon, 1 Mar 1999 11:36:46 EST
>> To: oletrucks@autox.team.net
>> Subject: [oletrucks] Radiator Mystery
>> Reply-to: Banjomike@aol.com
>
>> Hey everybody--
>>
>> I'm hoping someone can solve this problem. Recently the old radiator in my
>> 'bus ('55 235 engine) gave out. I went to the junk yard and found one that
>> bolted in and was approximately the same size as my old one (length wise, I
>> think it is is a couple inches short. When I put it in, it didn't leak and I
>> thought I was done. Drove it around and it overheated. No problem, bought a
>> new thermostat. It helped a little, but not enough. Took the thermostat
>out
>> all together, and it still overheated. Last week end I took the radiator
>out,
>> had it cleaned and recored---still overheats, but the temperature stays at a
>> level just to the right of the middle of the (original) gauge.
Mike,
If the temperature is staying constant, and if the gauge just shows a slightly
higher temp., but it is not "boiling over", then I don't know if I would worry.
This radiator, being slightly smaller, simply can not cool as efficiently as the
original, and therefore the engine is running hotter. This shouldn't be a
problem, unless a LOT hotter, but your post doesn't make this clear. Just
curious though, if you had a radiator cleaned and recored, why not the original?
Rob
>>
>> I'm pretty sure the gauge is OK. Is it the size of the radiator? Is it the
>> radiator cap? I don't know what it came out of, but I found it in the truck
>> section of the junkyard.
>>
>> Any advice would be greatly appreciated!!!
>>
>> Mike
>> Inland Empire Beater Club
>
>
>Did you put the thermostat back in? Did you run the truck up to
>operating temp then check the coolant level in the radiator... should
>be a couple inches below the cap or top...refill if found lower...
>Did you check the fan belt tension?... At operating temp with
>thermostat installed the water should be circulating (look in fill
>cap)... Note : when replacing the radiator, after you fill with
>coolant, you can run the engine without the cap on the radiator while
>warming it up so you don't have to pull the cap while system is under
>pressure...If there is no flow at temp. the waterpump could be
>shot...Or a collapsed bottom hose could be happening... to check
>this out rev the engine while looking at the bottom hose and see if
>it flattens in the midsection when revving... Spring inside may be
>gone. Did you put the fan shroud back on??/ Did it have one?
>
>Rogerg
>51-3100 AD Stocker
>oletrucks is devoted to Chevy and GM trucks built between 1941 and 1959
oletrucks is devoted to Chevy and GM trucks built between 1941 and 1959
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