jeremyillingworth
Member
1966 Wildcat convertible
When the car belonged to my grandparents, we would take it out on a nice day, with the top down, and all the windows down, and drive it around. I did notice smoke coming through the dash, especially if you hit it hard, but with the car completely open it never really bothered me.
But now it's mine and I drive it more often, including days when you wouldn't want the top down and the windows don't work well at all (new topic for another day). The smoke coming in is very noticeable, especially when driving to work in the morning, with the sun low in the sky. I sometimes feel light headed after a drive, which can't be great.
It's coming out of the oil filler. I'm sure it's blowby gases venting out. I haven't done a compression test yet but I suspect the rings aren't great. I don't have money for a rebuild right now, so even if it is rings, not much I can do right now.
It's actually a 1962 401 in a 1966 Wildcat but the passenger valve cover with the PCV has been switched over and I just put a new valve in. When it idles in neutral, it's pretty smoke free but idling in gear produces a fair amount of smoke and I'm sure it's even worse while driving.
So I guess my two areas of concern and hopefully action would be: how to reduce the smoke and how to keep it out of the interior.
I've done some searching on forums and I'm not the only one this has happened to. Solutions seem to be thicker oil, high miles car oil and Bardahl No Smoke. What else can I do? I don't want to just put a tight fitting oil filler cap on, as it's probably just going to pressurize the crankcase, since it has to go somewhere. But what if I took a oil filler cap, drill the hole into it and ran a breather hose away from the engine, running the gases down towards the road?
What is the most likely route it's taking into the car? Would it be through a weak point in the firewall, under the hood and into the intake cowl at the base of the windshield (not an ideal design when the engine gives off smoke) or a combination of both? Other than plugging up any hole in the firewall, is there any other way to address this? And yes, the hood to cowl rubber is in place.
I'll do a compression test when I have time. Hot or cold? All plugs out, choke and throttle blocked open (including secondaries?) and crank it over with the tester in one cylinder. Anything else?
Any other ideas on how to deal with this issue?
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When the car belonged to my grandparents, we would take it out on a nice day, with the top down, and all the windows down, and drive it around. I did notice smoke coming through the dash, especially if you hit it hard, but with the car completely open it never really bothered me.
But now it's mine and I drive it more often, including days when you wouldn't want the top down and the windows don't work well at all (new topic for another day). The smoke coming in is very noticeable, especially when driving to work in the morning, with the sun low in the sky. I sometimes feel light headed after a drive, which can't be great.
It's coming out of the oil filler. I'm sure it's blowby gases venting out. I haven't done a compression test yet but I suspect the rings aren't great. I don't have money for a rebuild right now, so even if it is rings, not much I can do right now.
It's actually a 1962 401 in a 1966 Wildcat but the passenger valve cover with the PCV has been switched over and I just put a new valve in. When it idles in neutral, it's pretty smoke free but idling in gear produces a fair amount of smoke and I'm sure it's even worse while driving.
So I guess my two areas of concern and hopefully action would be: how to reduce the smoke and how to keep it out of the interior.
I've done some searching on forums and I'm not the only one this has happened to. Solutions seem to be thicker oil, high miles car oil and Bardahl No Smoke. What else can I do? I don't want to just put a tight fitting oil filler cap on, as it's probably just going to pressurize the crankcase, since it has to go somewhere. But what if I took a oil filler cap, drill the hole into it and ran a breather hose away from the engine, running the gases down towards the road?
What is the most likely route it's taking into the car? Would it be through a weak point in the firewall, under the hood and into the intake cowl at the base of the windshield (not an ideal design when the engine gives off smoke) or a combination of both? Other than plugging up any hole in the firewall, is there any other way to address this? And yes, the hood to cowl rubber is in place.
I'll do a compression test when I have time. Hot or cold? All plugs out, choke and throttle blocked open (including secondaries?) and crank it over with the tester in one cylinder. Anything else?
Any other ideas on how to deal with this issue?
Sent from my SM-G930W8 using Tapatalk