Exhaust manifold bolt ... advice needed!
I recently purchased a 1997 Ford Class A with a 460 engine. The exhaust manifold issues have been well documented and so I decided to put Banks headers and exhaust on it. All my manifold bolts seemed ...
Forum Discussion
There used to be mobile bolt extraction services. They would come to you to take out the bolt.
From the photo it looks like ther may be room to get an angled drill in there to drill into the bolt so an extraction bit can be used.
I've removed broken bolts in the past by using Marvel Mystery Oil (get at most auto parts stores). Heat up the engine and then squirt the oil around the bolt let it sit while the engine cools down. Then drill into the bolt insert the extractor and crefully remove the bolt. If it won't budge try more oil and let it sit over night. It once took me 3 days to get a bolt out using this method.
Another option is to drill the bolt using larger and larger bits until there's just a shell left. Then use a metal pick to break out the bolt from the threads.
A 3rd option is to drill into the bolt and tap it to use a smaller grade 8 bolt and washer to replace the larger bolt.
From the photo it looks like ther may be room to get an angled drill in there to drill into the bolt so an extraction bit can be used.
I've removed broken bolts in the past by using Marvel Mystery Oil (get at most auto parts stores). Heat up the engine and then squirt the oil around the bolt let it sit while the engine cools down. Then drill into the bolt insert the extractor and crefully remove the bolt. If it won't budge try more oil and let it sit over night. It once took me 3 days to get a bolt out using this method.
Another option is to drill the bolt using larger and larger bits until there's just a shell left. Then use a metal pick to break out the bolt from the threads.
A 3rd option is to drill into the bolt and tap it to use a smaller grade 8 bolt and washer to replace the larger bolt.
