cazsper
Well-known member
- Joined
- May 30, 2012
- Messages
- 1,066
- Reaction score
- 2
- Location
- Sunnyvale, CA
- My Car
- 1968 Coupe: 393w, TKO-600, Maier Racing springs, Global West suspension, Currie 9in with forged axles, 3.50 gears, Trutrac, Baer brakes front/rear
1973 Mach-1: 351c 4V, C-6, 3.73:1 gears and a long "To Do" list..
I have some cooling issues on my '73 Mach-1 and I'm hoping someone can help me out. First of all, my car has a 4v Cleveland. It has a rough idle flat tappet (hydraulic) cam. It has dual points, Air Gap intake, and a 650cfm carb. The trans is a c-6 with 3.50 gears. The radiator is aluminum (looks pretty clean inside) it has a custom made aluminum fan shroud and 2x electric fans (single speed) that come on as soon as the key is on.
I have replaced the thermostat already. When I removed the t-stat, I did feel that "disk" that sits right below the t-stat.
This is a lot of info- but just in case it helps.. As soon as it warms up, it seems to stay at about 180-185' for about 5-6 miles on the freeway on an 80' day. After that, it starts to climb and will hit 220-230' within another 5-6 miles. Due to the cam, it idles at about 900rpm.
I have run radiator flush twice and am using a 180' t-stat. I'm wondering if my fans/shroud aren't the issue.. Any suggestions? Thank you.
Mike
I have replaced the thermostat already. When I removed the t-stat, I did feel that "disk" that sits right below the t-stat.
This is a lot of info- but just in case it helps.. As soon as it warms up, it seems to stay at about 180-185' for about 5-6 miles on the freeway on an 80' day. After that, it starts to climb and will hit 220-230' within another 5-6 miles. Due to the cam, it idles at about 900rpm.
I have run radiator flush twice and am using a 180' t-stat. I'm wondering if my fans/shroud aren't the issue.. Any suggestions? Thank you.
Mike
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