Overheating!
11-21-2012, 07:29 PM
#526
Registered
07-04-2013, 12:35 PM
#528
ZippoRx
Join Date: Dec 2004
Location: San Francisco East Bay
Posts: 32
Likes: 0
Received 0 Likes
on
0 Posts
Overheating?
Try this: impending engine failure due to low compression. Lower compression alters the way the fuel burns in ways the computer cannot correct. This is similar to overly rich mixture but has to do with the compression instead of the mixture.
Check the compression. Complain bitterly to the dealer about heat and potential engine failure. Check your warranty!
This is what happened to me, and how the dealer explained it. Failure at 71k, 104 months = $5200. Corporate HQ "sincerely apologetic"?!
Try this: impending engine failure due to low compression. Lower compression alters the way the fuel burns in ways the computer cannot correct. This is similar to overly rich mixture but has to do with the compression instead of the mixture.
Check the compression. Complain bitterly to the dealer about heat and potential engine failure. Check your warranty!
This is what happened to me, and how the dealer explained it. Failure at 71k, 104 months = $5200. Corporate HQ "sincerely apologetic"?!
09-07-2014, 03:43 PM
#529
Razz, I think you Definitely Hit the Nail on the head with your advice...
Many of these Overheating or Hot engines, or poor Air Cons are due to the fan motors themselves..not sure if they are "wearing out", but they appear to be slowing down.
Ask oneself WHY did Mazda change the Fan Motors in the Series 2 RX-8's, the two Fan Blades are the same, the fan shroud has changed to accommodate the 2 new motors...??
So, You could upgrade with 2 new motors and shroud.??
N3R1-15-150 Motor (2) $59.00 each.
N3R1-15-210A Shroud (1) $92.00
D201-15-T52 Nuts (6) $1.18 each
Or
N3R1-15-025A Fan Set Complete with Blades, Nuts, Motors and Shroud. $366.00
Many of these Overheating or Hot engines, or poor Air Cons are due to the fan motors themselves..not sure if they are "wearing out", but they appear to be slowing down.
Ask oneself WHY did Mazda change the Fan Motors in the Series 2 RX-8's, the two Fan Blades are the same, the fan shroud has changed to accommodate the 2 new motors...??
So, You could upgrade with 2 new motors and shroud.??
N3R1-15-150 Motor (2) $59.00 each.
N3R1-15-210A Shroud (1) $92.00
D201-15-T52 Nuts (6) $1.18 each
Or
N3R1-15-025A Fan Set Complete with Blades, Nuts, Motors and Shroud. $366.00
I replaced Motor #2 once. not because its dead or anything. cuz I turn it with my hand once and it felt like something is "clicking" inside.
hmm, new fan shroud? it might seal a bit better? did an of the cooling passage changed for S2? I never looked at it (like tube goes to ECU, battery box)
hmm, new fan shroud? it might seal a bit better? did an of the cooling passage changed for S2? I never looked at it (like tube goes to ECU, battery box)
Thread resurrection! I often wonder what happens to these guys... was this ever resolved?
Iflood,
Have not done it but understand from WCS who has done it... there is no easy way...
Must drain and pull radiator.
Must do this myself soon as I end up running the fans a lot with the lower turn-on temperatures I have programmed into the ECU
BTW, in 37C weather, stop-and-go traffic, AC on the coolant temps (50% standard antifreeze) never got over 95C
Iflood,
Have not done it but understand from WCS who has done it... there is no easy way...
Must drain and pull radiator.
Must do this myself soon as I end up running the fans a lot with the lower turn-on temperatures I have programmed into the ECU
BTW, in 37C weather, stop-and-go traffic, AC on the coolant temps (50% standard antifreeze) never got over 95C
10-24-2014, 06:10 PM
#530
New Member
Join Date: Aug 2011
Posts: 5
Likes: 0
Received 0 Likes
on
0 Posts
04 Rx8 man trans w/140k miles. about two months i replaced the cooling fan, engine was running hot. it has been running GREAT for weeks at about 800-1000 miles a week (yeah a lot). about 3 days ago i noticed that familiar "radiator smell" so i've been paying close attention to the temp gauge and the water. today i stopped on the way home and heard the radiator gurgling checked it out to find the gurgling was from the cap and drain hose, the gauge still showed normal temp (2 tics to the left of center). on my way home (as i paid very close attention to the gauge) the engine started to sound "funny above 4k RPM so i immediately pulled over and checked under the hood and under the car. i checked the oil and it was SCREAMING HOT!!!! i let the car cool down and checked the water - THE RADIATOR WAS EMPTY..?
I don't think the gauge is faulty; it moves from dead cold to normal temp as it has for years and when i had the cooling fan issues it moved to the right past the center
i think it may be the thermostat or possible the water pump..??? Has anyone had similar issues? please help
I don't think the gauge is faulty; it moves from dead cold to normal temp as it has for years and when i had the cooling fan issues it moved to the right past the center
i think it may be the thermostat or possible the water pump..??? Has anyone had similar issues? please help
10-24-2014, 07:22 PM
#533
Did you see any leaked coolant anywhere in the engine compartment?
It usually takes a while for the water pump to **** out a lot of water so check the hoses.
There is a metal union on the top rad hose....there are 2 clamps there
Did the drain fall out of the rad?
Heater hose?
It usually takes a while for the water pump to **** out a lot of water so check the hoses.
There is a metal union on the top rad hose....there are 2 clamps there
Did the drain fall out of the rad?
Heater hose?
Thread
Thread Starter
Forum
Replies
Last Post
tommy26Germany
Series I Trouble Shooting
11
09-29-2015 10:33 AM
