L.W.(=?iso-8859-1?Q?=DFill?=) Hughes III

Pictures of the water pump's normal and reverse rotation propellers
http://www.----------.com/waterPump.jpg
God Bless America, ßill O|||||||O
mailto:--------------------

"L.W.(ßill) ------ III" wrote:
>
> Double check that you don't have the reversed water pump made for
> the serpentine belt.

L.W.(=?iso-8859-1?Q?=DFill?=) Hughes III

Pictures of the water pump's normal and reverse rotation propellers
http://www.----------.com/waterPump.jpg
God Bless America, ßill O|||||||O
mailto:--------------------

"L.W.(ßill) ------ III" wrote:
>
> Double check that you don't have the reversed water pump made for
> the serpentine belt.

L.W.(=?iso-8859-1?Q?=DFill?=) Hughes III

Pictures of the water pump's normal and reverse rotation propellers
http://www.----------.com/waterPump.jpg
God Bless America, ßill O|||||||O
mailto:--------------------

"L.W.(ßill) ------ III" wrote:
>
> Double check that you don't have the reversed water pump made for
> the serpentine belt.

James Gemmill

did you have the radiator serviced bya readiator shop. Could be
clogged.

On Sun, 8 Feb 2004 22:28:06 -0600, "brad smith"
<bradley_k_smith@hotmaill.com> wrote:

>My 4.2 in my '81 CJ-7 is running hot. According to my Temp gauge
>it is always running at the very end of the green band in the
>winter and last summer was on the H line. After driving it I can
>hear the coolant bubbling in the system and the radiator cap will
>have it's vent popped. I have replaced the water pump, fan
>clutch, hoses, temperature sending unit, temperature gauge in
>spedo cluster, 15# radiator cap, thermostat housing, thermostat
>(using 160 now, only way to "keep it in the green") and had
>radiator steam cleaned. It still seams to be running hot even in
>Kansas City's 20-30 F weather we are having now. I don't see any
>coolant in the oil and there doesn't seem to be any burn off.
>
>I did have to run a wire direct from the sending unit to the
>gauge - my Painless harness has a break in the temp wire (not
>that it matters). I do not have a fan shroud. I have run out of
>things to replace and I am still running hot. My only thoughts
>are that my aftermarket products are causing to much heat in the
>combustion chamber or to much carbon build-up inside the engine.
>
>Thoughts?
>
>Also - I am planning on the 4.0 head swap in the near future -
>any suggestions on where to get a head and what casting I should
>look for?
>
>Thanks for looking
>Brad
>
>P.S. 258 w/ Holley 2bbl 500cfm carb, Clifford intake, headman
>headers, GM HEI distributor, stock heat range spark plugs, aprox
>95,000 miles.
>

James Gemmill

did you have the radiator serviced bya readiator shop. Could be
clogged.

On Sun, 8 Feb 2004 22:28:06 -0600, "brad smith"
<bradley_k_smith@hotmaill.com> wrote:

>My 4.2 in my '81 CJ-7 is running hot. According to my Temp gauge
>it is always running at the very end of the green band in the
>winter and last summer was on the H line. After driving it I can
>hear the coolant bubbling in the system and the radiator cap will
>have it's vent popped. I have replaced the water pump, fan
>clutch, hoses, temperature sending unit, temperature gauge in
>spedo cluster, 15# radiator cap, thermostat housing, thermostat
>(using 160 now, only way to "keep it in the green") and had
>radiator steam cleaned. It still seams to be running hot even in
>Kansas City's 20-30 F weather we are having now. I don't see any
>coolant in the oil and there doesn't seem to be any burn off.
>
>I did have to run a wire direct from the sending unit to the
>gauge - my Painless harness has a break in the temp wire (not
>that it matters). I do not have a fan shroud. I have run out of
>things to replace and I am still running hot. My only thoughts
>are that my aftermarket products are causing to much heat in the
>combustion chamber or to much carbon build-up inside the engine.
>
>Thoughts?
>
>Also - I am planning on the 4.0 head swap in the near future -
>any suggestions on where to get a head and what casting I should
>look for?
>
>Thanks for looking
>Brad
>
>P.S. 258 w/ Holley 2bbl 500cfm carb, Clifford intake, headman
>headers, GM HEI distributor, stock heat range spark plugs, aprox
>95,000 miles.
>

James Gemmill

did you have the radiator serviced bya readiator shop. Could be
clogged.

On Sun, 8 Feb 2004 22:28:06 -0600, "brad smith"
<bradley_k_smith@hotmaill.com> wrote:

>My 4.2 in my '81 CJ-7 is running hot. According to my Temp gauge
>it is always running at the very end of the green band in the
>winter and last summer was on the H line. After driving it I can
>hear the coolant bubbling in the system and the radiator cap will
>have it's vent popped. I have replaced the water pump, fan
>clutch, hoses, temperature sending unit, temperature gauge in
>spedo cluster, 15# radiator cap, thermostat housing, thermostat
>(using 160 now, only way to "keep it in the green") and had
>radiator steam cleaned. It still seams to be running hot even in
>Kansas City's 20-30 F weather we are having now. I don't see any
>coolant in the oil and there doesn't seem to be any burn off.
>
>I did have to run a wire direct from the sending unit to the
>gauge - my Painless harness has a break in the temp wire (not
>that it matters). I do not have a fan shroud. I have run out of
>things to replace and I am still running hot. My only thoughts
>are that my aftermarket products are causing to much heat in the
>combustion chamber or to much carbon build-up inside the engine.
>
>Thoughts?
>
>Also - I am planning on the 4.0 head swap in the near future -
>any suggestions on where to get a head and what casting I should
>look for?
>
>Thanks for looking
>Brad
>
>P.S. 258 w/ Holley 2bbl 500cfm carb, Clifford intake, headman
>headers, GM HEI distributor, stock heat range spark plugs, aprox
>95,000 miles.
>

Greg

I have an 81 CJ7 258 too, no fan shroud.

"Cherokee-LTD" <spammenot@home.com> wrote in message
news:PFFVb.42744$3YE1.25320@news04.bloor.is.net.ca ble.rogers.com...
> Put the fan shroud back on, the shroud will make a big difference at idle
> and low speed.
> -Brian
>
> "brad smith" <bradley_k_smith@hotmaill.com> wrote in message
> news:5%DVb.30285$2h.25705@twister.rdc-kc.rr.com...
> : My 4.2 in my '81 CJ-7 is running hot. According to my Temp gauge
> : it is always running at the very end of the green band in the
> : winter and last summer was on the H line. After driving it I can
> : hear the coolant bubbling in the system and the radiator cap will
> : have it's vent popped. I have replaced the water pump, fan
> : clutch, hoses, temperature sending unit, temperature gauge in
> : spedo cluster, 15# radiator cap, thermostat housing, thermostat
> : (using 160 now, only way to "keep it in the green") and had
> : radiator steam cleaned. It still seams to be running hot even in
> : Kansas City's 20-30 F weather we are having now. I don't see any
> : coolant in the oil and there doesn't seem to be any burn off.
> :
> : I did have to run a wire direct from the sending unit to the
> : gauge - my Painless harness has a break in the temp wire (not
> : that it matters). I do not have a fan shroud. I have run out of
> : things to replace and I am still running hot. My only thoughts
> : are that my aftermarket products are causing to much heat in the
> : combustion chamber or to much carbon build-up inside the engine.
> :
> : Thoughts?
> :
> : Also - I am planning on the 4.0 head swap in the near future -
> : any suggestions on where to get a head and what casting I should
> : look for?
> :
> : Thanks for looking
> : Brad
> :
> : P.S. 258 w/ Holley 2bbl 500cfm carb, Clifford intake, headman
> : headers, GM HEI distributor, stock heat range spark plugs, aprox
> : 95,000 miles.
> :
> :
>
>

Greg

I have an 81 CJ7 258 too, no fan shroud.

"Cherokee-LTD" <spammenot@home.com> wrote in message
news:PFFVb.42744$3YE1.25320@news04.bloor.is.net.ca ble.rogers.com...
> Put the fan shroud back on, the shroud will make a big difference at idle
> and low speed.
> -Brian
>
> "brad smith" <bradley_k_smith@hotmaill.com> wrote in message
> news:5%DVb.30285$2h.25705@twister.rdc-kc.rr.com...
> : My 4.2 in my '81 CJ-7 is running hot. According to my Temp gauge
> : it is always running at the very end of the green band in the
> : winter and last summer was on the H line. After driving it I can
> : hear the coolant bubbling in the system and the radiator cap will
> : have it's vent popped. I have replaced the water pump, fan
> : clutch, hoses, temperature sending unit, temperature gauge in
> : spedo cluster, 15# radiator cap, thermostat housing, thermostat
> : (using 160 now, only way to "keep it in the green") and had
> : radiator steam cleaned. It still seams to be running hot even in
> : Kansas City's 20-30 F weather we are having now. I don't see any
> : coolant in the oil and there doesn't seem to be any burn off.
> :
> : I did have to run a wire direct from the sending unit to the
> : gauge - my Painless harness has a break in the temp wire (not
> : that it matters). I do not have a fan shroud. I have run out of
> : things to replace and I am still running hot. My only thoughts
> : are that my aftermarket products are causing to much heat in the
> : combustion chamber or to much carbon build-up inside the engine.
> :
> : Thoughts?
> :
> : Also - I am planning on the 4.0 head swap in the near future -
> : any suggestions on where to get a head and what casting I should
> : look for?
> :
> : Thanks for looking
> : Brad
> :
> : P.S. 258 w/ Holley 2bbl 500cfm carb, Clifford intake, headman
> : headers, GM HEI distributor, stock heat range spark plugs, aprox
> : 95,000 miles.
> :
> :
>
>

Greg

I have an 81 CJ7 258 too, no fan shroud.

"Cherokee-LTD" <spammenot@home.com> wrote in message
news:PFFVb.42744$3YE1.25320@news04.bloor.is.net.ca ble.rogers.com...
> Put the fan shroud back on, the shroud will make a big difference at idle
> and low speed.
> -Brian
>
> "brad smith" <bradley_k_smith@hotmaill.com> wrote in message
> news:5%DVb.30285$2h.25705@twister.rdc-kc.rr.com...
> : My 4.2 in my '81 CJ-7 is running hot. According to my Temp gauge
> : it is always running at the very end of the green band in the
> : winter and last summer was on the H line. After driving it I can
> : hear the coolant bubbling in the system and the radiator cap will
> : have it's vent popped. I have replaced the water pump, fan
> : clutch, hoses, temperature sending unit, temperature gauge in
> : spedo cluster, 15# radiator cap, thermostat housing, thermostat
> : (using 160 now, only way to "keep it in the green") and had
> : radiator steam cleaned. It still seams to be running hot even in
> : Kansas City's 20-30 F weather we are having now. I don't see any
> : coolant in the oil and there doesn't seem to be any burn off.
> :
> : I did have to run a wire direct from the sending unit to the
> : gauge - my Painless harness has a break in the temp wire (not
> : that it matters). I do not have a fan shroud. I have run out of
> : things to replace and I am still running hot. My only thoughts
> : are that my aftermarket products are causing to much heat in the
> : combustion chamber or to much carbon build-up inside the engine.
> :
> : Thoughts?
> :
> : Also - I am planning on the 4.0 head swap in the near future -
> : any suggestions on where to get a head and what casting I should
> : look for?
> :
> : Thanks for looking
> : Brad
> :
> : P.S. 258 w/ Holley 2bbl 500cfm carb, Clifford intake, headman
> : headers, GM HEI distributor, stock heat range spark plugs, aprox
> : 95,000 miles.
> :
> :
>
>

Mike Romain

If a 160 is the only way yo keep the temp down, I would guess you have a
blown head gasket.

I would try heating it up with the rad cap off and watch for many tiny
bubbles and smoke coming out the hole or a major explosion of fluid when
the t-stat opens.

On some, once the thermostat has opened you can put your hand over the
opening and feel the puffs of compression.

Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's

brad smith wrote:
>
> My 4.2 in my '81 CJ-7 is running hot. According to my Temp gauge
> it is always running at the very end of the green band in the
> winter and last summer was on the H line. After driving it I can
> hear the coolant bubbling in the system and the radiator cap will
> have it's vent popped. I have replaced the water pump, fan
> clutch, hoses, temperature sending unit, temperature gauge in
> spedo cluster, 15# radiator cap, thermostat housing, thermostat
> (using 160 now, only way to "keep it in the green") and had
> radiator steam cleaned. It still seams to be running hot even in
> Kansas City's 20-30 F weather we are having now. I don't see any
> coolant in the oil and there doesn't seem to be any burn off.
>
> I did have to run a wire direct from the sending unit to the
> gauge - my Painless harness has a break in the temp wire (not
> that it matters). I do not have a fan shroud. I have run out of
> things to replace and I am still running hot. My only thoughts
> are that my aftermarket products are causing to much heat in the
> combustion chamber or to much carbon build-up inside the engine.
>
> Thoughts?
>
> Also - I am planning on the 4.0 head swap in the near future -
> any suggestions on where to get a head and what casting I should
> look for?
>
> Thanks for looking
> Brad
>
> P.S. 258 w/ Holley 2bbl 500cfm carb, Clifford intake, headman
> headers, GM HEI distributor, stock heat range spark plugs, aprox
> 95,000 miles.