Brownie Mobile
New Member
- Joined
- Mar 7, 2012
- Messages
- 413
- Reaction score
- 1
- Points
- 0
- Location
- Williston, ND
- Vehicle Year
- 1985
- Make / Model
- Ford
- Engine Size
- 5.0
- Transmission
- Manual
So I've been trying to track down a really inconsistent misfire for a while now. Thought I had it paid 160 for a tuneup performanceish stuff helped a ton. Never would've thought cap coil wires would make such a difference. This didn't get rid of my misfire but it made it way less frequent. Still there though and that bugs me. To qualify this is a truly inconsistent misfire. I'll start it one day and it'll run great for 2 or 3 days I feel like I could pull pikes peak in final gear (4th). Then one day it'll run like crap doesn't matter what temp it is. Outside if it's running crappy it's running crappy. But is dominantly running good since tune up. A couple days ago I was watching the radiator for leaks with it running ( on All 8) and it starts missing and not a 1/4 seconds later smoke started coming out of the valve cover oil fill and breather......thing. I've come to a few hypotheses. Getting water in combustion chamber head gasket etc. ( no water In oil or vise versa). Valve issue someone mentioned valve timing could be off. Bent valve. Flat spot on lobe ( aftermarket cam). Oh and I can't say for sure but judging by my spark plugs which were not rusty looking btw. 7 is the one missing. Also engine wants to die when turning heavily.( last pull into my parking spot is a sharp angle) has died a few times in that single situation turned up the idle good now. But sometimes it'll drop down to 5 or 600 rpm I set idle to 900 because of preference. And it won't come back till I hit the gas and then it returns to 900 rpm
Also considered fuel pump issue or other fuel delivery issue. Not enough flow for a 4 bbl? (Edelbrock 500 or 650 cfm not sure)Sorry for brownie mobile novel #2 hope somebody can help thanks.
Also considered fuel pump issue or other fuel delivery issue. Not enough flow for a 4 bbl? (Edelbrock 500 or 650 cfm not sure)Sorry for brownie mobile novel #2 hope somebody can help thanks.