jake2077
Jr. Member
- Joined
- Dec 6, 2018
- Messages
- 106
Finally got around to getting the 71 Bronco with rebuilt SMF 302 running this weekend. I've had two runs of about 12-15 minutes each bringing it up to temp. A few things I've noticed and a video for thoughts/feedback. Here's the video
- Had to stop the first test due to air in the cooling system (spectacular failure see related video on the channel) after about 13 minutes.
- Got the excess air out of the cooling system and utilizing the overflow tank successfully but still over 215 degrees closing in on 230 with 180 thermostat
- Hearing a lot of rocker/valve noise and wondering if the stock DOOE heads and rockers are the non-adjustable type meaning just run them down? I set for pre-load lash originally and thought I was good but maybe not?
- Heat is an issue over 2k rpm. The bore is 6 over so I expected it to run hot but geeze. I have a new aluminum 3 core radiator and stock clutch fan (maybe that's the culprit) with the fan shroud in place.
- When the engine is at temp there are 'pings and dinks' here and there making it very concerning and prompting me to shut it down. Not sure if this is the heat seating all the things in or a bad omen.