Heating redux - Land Rovers Only

GKChesterton · 03-20-2006, 01:59 PM

Many of you have already helped. Still trying to get a real diagnosis before changing things.

Here it goes:
White smoke out back at start up but goes away in about 1/4 mile hmm condensation but seems like alot. Put hand infront of exhaust after it has stopped, no water or sticky build up--can't really smell anti-freeze smell.
1.Overheats at freeway speed, shoots up quickly
Leads me to think ahhh headgasket/crack somewhere
2. Hmmm oil and coolant bone clean
3. hmm could just be exhaust gases escaping into coolant passage hmmm
4. Did block tester to test for Hydrocarbons in cooling system did several tests and different conditions---nothing hmmmm

Burped coolant 50 times
Tried experiment of bypassing heater core--acutally took longer to overheat and slower--so did change things.

So I thought I had 2 pieces of evidence pointing to head gasket but the hydrocarbon test is supposed to be diffinative?

Just get a new radiator??

Haven't wanted to shoot parts at the problem but my finger is getting itchy cause after new radiator is pulling the heads off just to make sure?

Am I missing a step or troubleshooting point? Maybe water pump but its not weeping and seems to flow---suppose I could have it flow tested. Thermo is new and works. I suppose I could have a hole in the exhaust letting more water in overnight than usual causing the white smoke--but the two together made me really think headgasket.

Any thought?
THanks
Chris

RageRover · 03-20-2006, 02:21 PM

Checkout your thermostat, and see if any coolant overflowed out of your overflow tank. And a little white was typical for me for a while only because water was trapped in the resonator peice on the tail pipe, after hacking that off, no more white smoke. It is also possible your radiator is clogged, and causing the coolant to evaporate, believe it or not, and you lose coolant throught the overflow. This happened on several Jeeps I worked on, LOL

, and the radiator and thermostat were replaced.

Hope this helps!

OkieRover · 03-21-2006, 07:44 AM

Everything you just typed suggests head gasket. Those are the exact things that happened to me. In the end I replaced the head gasket AND the radiator. I got tired of chasing the problems around.

GKChesterton · 03-21-2006, 11:14 AM

Ya you evil teller of truth and wisdom. People don't want to hear that kinda thing.

.

I ordered a Radiator, as it probably needs to be done anyway. Will put it in and problem will still be there

. Just want to drive it a few months till summer when I can do the whole motor. Is there a magic pill for that--they must have one on Ebay? I'll get one that either fixes it, makes me think its fixed, or makes me not care that it isnt fixed.

OkieRover · 03-21-2006, 11:32 AM

Better living through chemistry, I say!!!

03-20-2006, 01:59 PM	#1 (permalink)
GKChesterton Member Join Date: Jan 2006 Location: Los Angeles, CA. Posts: 35 Gallery: 0	Heating redux Many of you have already helped. Still trying to get a real diagnosis before changing things. Here it goes: White smoke out back at start up but goes away in about 1/4 mile hmm condensation but seems like alot. Put hand infront of exhaust after it has stopped, no water or sticky build up--can't really smell anti-freeze smell. 1.Overheats at freeway speed, shoots up quickly Leads me to think ahhh headgasket/crack somewhere 2. Hmmm oil and coolant bone clean 3. hmm could just be exhaust gases escaping into coolant passage hmmm 4. Did block tester to test for Hydrocarbons in cooling system did several tests and different conditions---nothing hmmmm Burped coolant 50 times Tried experiment of bypassing heater core--acutally took longer to overheat and slower--so did change things. So I thought I had 2 pieces of evidence pointing to head gasket but the hydrocarbon test is supposed to be diffinative? Just get a new radiator?? Haven't wanted to shoot parts at the problem but my finger is getting itchy cause after new radiator is pulling the heads off just to make sure? Am I missing a step or troubleshooting point? Maybe water pump but its not weeping and seems to flow---suppose I could have it flow tested. Thermo is new and works. I suppose I could have a hole in the exhaust letting more water in overnight than usual causing the white smoke--but the two together made me really think headgasket. Any thought? THanks Chris

03-20-2006, 02:21 PM	#2 (permalink)
RageRover Crazy about Rovers and more... Join Date: Dec 2005 Location: Westland, MI Posts: 2,887 Gallery: 0	Checkout your thermostat, and see if any coolant overflowed out of your overflow tank. And a little white was typical for me for a while only because water was trapped in the resonator peice on the tail pipe, after hacking that off, no more white smoke. It is also possible your radiator is clogged, and causing the coolant to evaporate, believe it or not, and you lose coolant throught the overflow. This happened on several Jeeps I worked on, LOL , and the radiator and thermostat were replaced. Hope this helps! __________________ Pat Albaugh, Midwest Moderator "Diffage" -the point at which the truck's differential makes contact with the ground. http://www.cardomain.com/id/RageRover42Visit my RRC and others here!(updated as of September 15, 2006) 1995 RRC LWB -LT265/75R16 Pathfinder All Terrains -RTE 2" Lift Springs -Pro Comp ES9000 Shocks (from DAP Enterprises) -KMC Front Diff Guard -4 Desert Fox 55 watt Lighting -Radio Shack CB Radio (never know when signal fails on a cell phone) -2 Halogen Super Sport 100 watt forward lights -Brush Gaurd, meant for a Jeep Grand Cherokee, now fitted to the RRC -Lowe's Special "Homemade" Snorkel -T-Case out of an 92' RRC

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03-21-2006, 11:14 AM	#4 (permalink)
GKChesterton Member Join Date: Jan 2006 Location: Los Angeles, CA. Posts: 35 Gallery: 0	Ya you evil teller of truth and wisdom. People don't want to hear that kinda thing. . I ordered a Radiator, as it probably needs to be done anyway. Will put it in and problem will still be there . Just want to drive it a few months till summer when I can do the whole motor. Is there a magic pill for that--they must have one on Ebay? I'll get one that either fixes it, makes me think its fixed, or makes me not care that it isnt fixed.

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