4kq overheating - still

[ben swann]

Tihol,

Thanks for getting back to me.

I will try some more "radical" flushing as you suggest.  There are
probably some different places I can try and dislodge buildup, assuming
that is the problem.  It must be as I have pretty much ruled out
everything else - unless it is the wrong head gasket.

I had removed the thermostat to see if that was the culprit.  It was as
if the thermostat was not opening.  It may have helped a little.

No leaks in the system.  Just doesn't seem to want to flow.

It would be good to know what type of solution I might run through and
soak to breakup the built-up material which may be clogging the block
or head.

Ben

----- Original Message -----
From: tihol_tiholov at sd27.bc.ca
Date: Monday, June 2, 2003 7:04 pm
Subject: Re: 4kq overheating - still

>
> Sorry for the late reply - out of town for the weekend.
>
> >Can you expound on this, as you seem to have some experience in the
> >matter?  How can I expel residue or debris as you describe?
>
> Nothing magic - just look in the hole behind the waterpump and
> poke in any
> hole low in the block with coat hanger or some such.  Sludge might be
> hardened, iron blocks do rust and over the years an opening might be
> partially clogged.
>
> >I have already forced water in and out both ways and with all of the
> >radiator swaps, etc.
>
> Do you get as strong a jet of water out as it goes in or does it look
> restricted?  Pressure washer with hot soapy water is ususally good at
> cleaning that stuff out - should be used to blow in through any
> opening in
> the block you can expose.  What do you mean, "without thermostat
> it gets
> better".  Still overheating but less?  Do you have any leaks in
> the cooling
> system?  Even a minor leak can lead to overheating due to coolant
> loss,BTDT.  There may be some chemical way of cleaning the block,
> Rob Myers,
> resident chemist, should know.
>
> Good luck?
>
> Greetings,
> Tihol
>
>
>