I agree with ya Ray on a complete cooling system check...however, with
the exception of the 2000+ heads not cracking. I've replaced quite a
few sets either under extended warranty or CP work...they're the same as
the '92+ models. I really wish DC would have fixed this issue but since
the 3.9/5.2/5.9L engines are no longer...it's not that critical and
there are plenty of options to have them fixed.
- Bernd
Ray Block wrote:
> I really don't understand why most folks want to jump to one of the more
> expensive conclusions to solve a problem (any problem) rather than perform a
> proper diagnosis. Cooling systems can be pressure tested to detect a leak.
> Radiator caps can (and should) be pressure tested.
>
> Heads and head gaskets would be the absolute *last* things I would consider.
> I know several people with 92-93 magnums with nearly 200K miles on them and
> never had the heads off.
>
> Having said that....early magnum heads have been known to suffer cracks
> between the valve seats. Usually it doesn't result in any noticeable
> problems.
>
> *IF* you were to find this is indeed the source of your coolant loss, I
> would recommend the heavy duty heads if you want to buy new. One place to
> get them is Hughes Engines. DO NOT get talked into R/T heads. Regardless
> of valve size, the ports are waaay too large for good performance on a 318!
> And they are expensive.
>
> I've not found any cracking issues in post 2000 magnum heads so a newer (low
> mileage) junk yard set may be a viable alternative to new HD heads.
>
> I still would bet heads are not your problem.
>
> Ray
> 1992 Dakota; 318 magnum. See link below..
> http://www.dragtruk.com/ENTRIES/20KM1FD2KWBP.html
>
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