small crack in an exhaust manifold

[Kali]

problem or ignore? will JB weld fix it or temp too high?:evilgrin:

[Gold Metal Flake]

1. Common.

Especially on the 351C-2V. The one in my shed has a cracked exhaust manifold. No, JB weld will not work on this. Ignoring it works fairly well, unless you can hear the exhaust leak over the radio. You can shop for a replacement in the local self-serve wrecking yard or on Ebay but it will probably eventually crack, too. You could take it off and take it to a welder who can drill holes at each end of the crack (to terminate the crack) and weld it up. That's probably the best solution. Or a combo plate of getting a cheap replacement, swapping it out in about an hour (assuming no broken bolts) and get the old one repaired to keep as a spare.

[Kali]

2. ok we have established your hour is at least a whole day for me/us

but still that isn't too bad

this is an old ford pick up (yet another abandoned vehicle) that we had running for a while, then it quit (can't remember why) sat for a while then last year a guy I have helping around here a little, switched out the starter and got it running. Husband took it for a couple mile jaunt and it started running real crappy - the only thing he saw/found was this crack. That was as far as we got it then and there it sat until now, thinking about playing around with it. Maybe we have a sparkplug/timing problem (couldn't be the 5 year old gas in could it?:P )

so it is a job I can probably do but also probably not what was wrong with it? I like this truck - its blue! As long as I'm dumping money into old trucks maybe I should throw some at this one.

The other one we are working on (another old ford) has some kind of choke problem that we can't figure out (Watson the Macaw got in the engine area and chewed up a bunch of stuff, nevermind the packrats) so we left it at a shop in town - stopped by there today and the guy is showing the husband how it starts right up most of the time now and all the sudden a bunch of coolant just starts pouring out on the ground! (thermostat housing???) I told him "now you know what our daily lives have been like the last month!" walk out to the truck and something else is wrong - or my poor son - something happens every time he tries to get to work or home. arrrgggghhhh today's was a carrier bearing for the driveline in the dodge. WTF? why does it need to be in two (or is it three) pieces? I don't understand.

Anyway needed to rant, sorry about that. Thanks for the word on the manifold.

[Gold Metal Flake]

3. The old Ford truck would not even know if it's exhaust manifold were cracked.

It's running badly cuz something else went wrong and I would guess the carb needs to be carefully cleaned and reassembled with a carb kit. Add a new inline filter and replace the gas at the same time and I'll bet it runs fine after that.