Vehicle & Technical > Discovery

overheating, need advice!

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BigA:
I guess fitting a new pump will mean more flow through the rad, so any crap will have been pushed about ??

How easy was the pump replacement, as i have a nasty suspicion mine is leaking and on its way out?

needbeer:
here are lee have a little read http://dodgeram.org/tech/dsl/more_power/Power_ve.htm
when mine started geting hot i backed off the right foot and the temp came down

extreme90:

--- Quote from: "needbeer" ---here are lee have a little read http://dodgeram.org/tech/dsl/more_power/Power_ve.htm
when mine started geting hot i backed off the right foot and the temp came down
--- End quote ---


pump tweaks alter the EGT temp  (exhaust gas tempreture) more than overall engine temp

my 200 90 has full width intercooler blocking the rad aswel as a 8274 infront of that, and it still runs the same as it did before  :shock:
( diaphram 90 degree...smoke screw 1 1/2 turns in...turbo 1.1 bar )

id say backflush the rad as thermidor said previous

dan

Dr Strangeglove:
I have a V8 Rangie.  I bought it, drove on the motorway fine.  Then I let a mate of mine drive it up a hill on quite a rough dirt track - got to the top and overheated.

I took the thermostat out and it was slightly better (this is after I did the head gaskets that I had blown on the overheating).  A gent said keep your heater going when it’s hot and see if it blows hot and cold as this could be a sign of the pump not working.

The main opinion from those that had suffered the same (but remember this is a V8 auto) was that the rad is likely to be blocked on the inside.  As it’s a V8 auto the rads are not cheep so I did not want to change it unless it needed it.  Eventually ordered one from a place in Bradford (approx £180 delivered - but mine has two oil coolers due to it being auto) and fitted it to the RR.  I had it running but could not get the temperature gauge to work - thought I had [!Expletive Deleted!] it up as I am not a mechanic by any stretch of the imagination.  On another dry spell I fitted the thermostat back in.  The beast got to temperature and remained stable just below half way!  (was chuffed to bits as I could not afford the heads going again!)

On inspecting the rad before removal, I noticed the bottom two rows of the rad (about 1/2") had the concertina fins flaking slightly.  All the others seemed OK.  After taking it off, the fins that were on the front of the rad (not accessible due to air con rad) turned to dust when I touched them (and I mean dust!).

Just thought it was worth a mention as I would hate you to suffer an overheat like I did (a bit more of a problem on the V8 mind!).

Good luck mate - hope it’s sorted soon (and with minimum outlay).

Regards

Mick

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