| Author |
Message |
BretM (Bretm)
| | Posted on Wednesday, November 28, 2001 - 11:16 am: | |
Yeah I run a 50/50 in the summer with water wetter in it also. The water wetter definitely made a difference. I would say the best investment in your cooling system that you can make (being that it's relatively cheap and all you have to do is pour it in). I think that one of my hoses is leaking a little bit and letting air into the cooling system which is why it tends to run hot. It seems that right after I bleed it it's pretty good, but then after a little while it gets not bad, but to the point where it can't handle that hot idling. I guess this is another thing for me to do when I do the big project this winter. |
magoo (Magoo)
| | Posted on Tuesday, November 27, 2001 - 7:42 pm: | |
Bret, I live in Fla.. On 90 to 95degree weather in traffic my 79 308GTS runs 195 degrees with the A/C on and in extreme heat in traffic, say 98 to 100 degrees, my car has never gone over 212 degrees with the A/C on. I guess I am lucky because I have never had any coolant overflow or overheating. I also use "water wetter" with a 50-50 mix of coolant and water. I know it's not the fix all of overheating problems but it works for me. |
BretM (Bretm)
| | Posted on Tuesday, November 27, 2001 - 7:15 pm: | |
Yeah I know how the A/C works but I guess I never really thought about how much heat it could be potentially letting off, good point. Should a 308 be able to sit in traffic on a hot day with the A/C on and not overheat (or at least get really hot, like 230)? I'm just wondering that it I start tracking my car and all that I will need a A1 cooling system to handle it. |
'75 308 GT4 (Peter)
| | Posted on Tuesday, November 27, 2001 - 6:37 pm: | |
Jeff, I never touched the bottom-end, so nothing to need loosening-up down there.
James, All my plugs are a healthy milk-chocolat, with a little soot on the exposed thread - normal. |
James Angle (Jimbo74)
| | Posted on Tuesday, November 27, 2001 - 5:02 pm: | |
Could it be running too lean?
I know that will make a jag v-12 heat up no matter what temperature outside. |
Jeff Fiedler (Muck)
| | Posted on Tuesday, November 27, 2001 - 2:41 am: | |
New engines sometimes run hot untill they loosen up. How many miles since the rebuild? |
'75 308 GT4 (Peter)
| | Posted on Monday, November 26, 2001 - 10:30 pm: | |
I guess so Magoo.
Bret, the A/C condensor (mounted in front of the rad) is a heat exchanger so it will throw off heat and guess where that heat goes? |
magoo (Magoo)
| | Posted on Monday, November 26, 2001 - 7:41 pm: | |
Peter, I think it may be "Much Ado About Nothing." After reading all the comments here I agree it seems normal even on colder days. Sometimes after a major project ,which you have just done, we tend to constantly look for things making them out to be potential problems when actually they are not. |
BretM (Bretm)
| | Posted on Monday, November 26, 2001 - 7:20 pm: | |
That's good to hear. Is the radiator a weak point in a 308's cooling system just out of curiosity (what makes Ferraris tend to run hot)? I found that with my A/C on though if the car sits and idles the temp goes through the roof and never comes back down to normal when I turn it off again (hence no A/C usage for me). I'm thinking that possibly some sort of switch for the heater valves or something is causing this? |
'75 308 GT4 (Peter)
| | Posted on Monday, November 26, 2001 - 6:23 pm: | |
Thanks, I guess I was reading too much into it. Last year, I didn't have it on the road enough in the winter, to see what the temps would usually be at. |
Michael A. Niles (Man90tr)
| | Posted on Monday, November 26, 2001 - 5:03 pm: | |
Sounds about right to me Bret. On hot days I see 195/212 (water/oil) all day long. And incidentally she's often the most peppy at that time. Nice and hot and ready to rumble. 15,000 miles later and she's fine. I don't think you have a problem at all. |
BretM (Bretm)
| | Posted on Monday, November 26, 2001 - 2:50 pm: | |
In the cold weather my car stays on 170 when moving at any speed, it might make it to like 190-5 if I stop for awhile. My problem comes when it's hot outside it only goes down to 190 when hot and moving. I think I'm gonna go over the cooling system this winter. I was thinking about having the radiator recored in a different style (someone mentioned having it done Honda racing style or something along these lines). Do you guys think this would be a good idea? |
david handa (Davehanda)
| | Posted on Monday, November 26, 2001 - 11:01 am: | |
I'm in Seattle as well, and my water temp was around 170 on the freeway Saturday.
Dave
78 308 GTS |
Michael A. Niles (Man90tr)
| | Posted on Monday, November 26, 2001 - 5:08 am: | |
I know they are different cars but my TR does the same thing. It reads 170 or so the road moving above 50 MPH in cold weather (around 50 - 55 F). But get in the city with a little stop and go driving and it goes straight for 195 and stays there. The fans are definitely more effective since they are blowing colder air so the temps drop down faster. I think unless you dump more coolant, let the system settle down and see what your engine normal temps are. This sounds normal to me. |
'75 308 GT4 (Peter)
| | Posted on Monday, November 26, 2001 - 12:36 am: | |
I saw KIRO 7 news this evening and it showed heavy rain in Seattle, it only sprinkled a bit here in the suburbs of Vancouver today.
I did see lower temps, but only driving at around 80mph on the Trans-Canada. Back in the city, up to 195, but steady, never went above. |
david schirmer (David)
| | Posted on Monday, November 26, 2001 - 12:05 am: | |
I'm in Seattle area and was out this weekend. Coolant temp was normal during drive. I usually am slightly above the next hash mark down from 195. (170 ?) I did notice that when I took my usual route home, through town and up my mountain that the temp didn't rise as much as it does in the summer. It usually shoots to almost 195 during that slow leg of the trip. 77 308. |
'75 308 GT4 (Peter)
| | Posted on Sunday, November 25, 2001 - 11:41 pm: | |
I've been driving the car in colder weather now and can't understand why I'm still reading coolant temps of 195°F. After driving for awhile this morning, I parked the car outside and dumped a small puddle of coolant on the ground! It was around 5°C (around 40°F) outside! I have a 1.1bar rad cap! I've bled the system so many times before when I put the car back on the road (only two months ago). There is a new temp sending unit installed. Should I bleed again? I shouldn't be reading that hot on a colder day like today, or should I? Anybody else driving their cars in outside temps like these, would you mind if I asked if you're reading the same temps on your gauges? |