| Author | Message | ||
     Charles Allen (Callen229) Member Username: Callen229 Post Number: 44 Registered: 07-2002 |
I have a 1994 Discovery with 3.9 engine. It started to run hot this weekend while 4 wheeling climbing up a long steep hill. Turned on the heat and it cooled down. Now on the road with the AC running it gets hot. In my Haynes manual it said the first thing to check was the timing. But I can't figure which setting to use. Is it a Low-Compression non-catalyst engine? High-compression non-catalyst engine? High-compression catalyst engine? Or just what should the timing be set for? Am I correct in thinking that "catalyst" means catalytic converter? Thanks Charles | ||
| Kent Sorensen (3w_mo78) New Member Username: 3w_mo78 Post Number: 7 Registered: 05-2003 |
Have your raditor rodded and cleaned, replace the thermostat, and don't mess with the timing. | ||
| Charles Allen (Callen229) Member Username: Callen229 Post Number: 46 Registered: 07-2002 |
Thats on the list also. I just wanted to cover all my bases. Trying to check the timing tonight and one of the power steering hoses are right in the way making it very hard to see.Had to make sure that I did not stick my face in the fan. It has 141000 miles on it so the radiator would probably need cleaning. | ||
| Land Rover Certified Used A**hole (Jason) Senior Member Username: Jason Post Number: 495 Registered: 04-2002 |
I would agree to not mess with the timing. However, at the very least, check to make sure the vacuum line on the distributor is in good shape and still connected to the plenum. | ||
| Geoff 93 RRC (Geoff) Member Username: Geoff Post Number: 80 Registered: 11-2002 |
After about 6 yrs or 100K the radiators start to get clogged depending on maintenance. Mine was re-cored at about 75K. I would flush it out first and change the thermostat. | ||
| Tony Zuniga (Tony23007) Member Username: Tony23007 Post Number: 126 Registered: 05-2003 |
I would not mess with the timing either, but if you must know the info on my Disco is posted right in front of the engine, base idle, Timing etc. etc. I had my timing checked by a mechanic and to my surprise it was very advance, although I did not have any problems with overheating. Try the thermostat first, then see if its your sending unit, those things go out first. If that does not help then get your radiator rodded. | ||
| Shaun Power (Shaunp) Member Username: Shaunp Post Number: 75 Registered: 05-2003 |
The compression ratio is stamped with the engine number and you can see the cats in the exhaust. I thought most markets had cats except Australia. Check the timing but it would need to be quite retarded for it to run really hot, make sure the advance diapram does not have a hole in it as well. I reckon you have more likly got a cooling system prob. |
