- This topic has 74 replies, 20 voices, and was last updated 12 years, 7 months ago by
.
-
Topic
-
-
Replies
-
Let me see if I can explain my idea a little better. first- get yourself a bolt that will fit down the hole that the broken bolt came out of. use a bolt that is a little smaller in diameter than the one that broke. make sure the bolt sticks up above the top of the cam retainer by an inch or two. now- put a small dab of JB WELD on the end of this bolt and insert it into the hole so that it comes into contact with the top of the broken bolt. make sure the bolt you insert is kept as straight as possible while the epoxy cures. once the epoxy has fully cured you can use a wrench or small ratchet/socket on top of the bolt you epoxyed to the broken piece and back it out ( basically you extending the broken bolt by epoxing a new bolt to it ) JB WELD is a very strong product. just make sure you let it cure fully. as long as you use just a dab you should be able to keep it from adhering to the sides of the retainer bolt hole.
I think the long and short of it is you are still eventually going to get around to having to pull the head. If the bolt has any torque on it, and you don’t get any applied to the bore itself, I’d be pretty amazed if you were able to turn the bolt out without the jb weld breaking. Since you have a limited amount of work room, I think you are going to find that you have no other option than to remove the head. It would probably take less time than you think if you have the right tools, and the time you are spending trying the jb weld thing is time you could be spending getting to the root of the problem. Also, I imagine that’s a hardened bolt, so a chisel won’t make a dent in it.
I read the original post but skipped over the responses so far so if I’m repeating something sorry.
First remove the bolt on the other side of the bracket and see what you have at the cylinder head itself. See if the bolt is broken off at the head or slightly above. If it’s flush then take a punch and tap what’s left of the blot in a counterclockwise direction, this may back out what’s left of the bolt. I don’t recommend drilling as you’ll likely send a bunch of metal shavings into the engine.
One other option may be an extractor drill bit set, this may work in your situation if the bolt is not crossthread as most stuff inside the engine is well machined and normally doesn’t stick inside the threads. I would do this AFTER trying the method listed above.
For a better idea of what I’m talking about watch this video for how I do it with my air hammer, you can do the same thing with hand tools which is what I’m suggesting.
That makes sense. For some reason I kept on reading nut instead of a bolt. I will try that tomorrow If I get off of work early.
I am not comfortable removing the head, and right now, I think the most I would have to remove is the rocker assembly.
Too bad the bracket is only 1 inch deep. It connects to the rocker assembly unlike older Hondas. So in order to find out if it’s broken at the head or not I would have to remove the camshaft retainer (which I did) as well as the rocker assembly which requires removing the camshafts which I’m entirely uncomfortable in doing. I looked at one of your videos yesterday on replacing ..uh what was it…spark plug seals I think. Any way you had to remove the rocker assembly I believe too, I’m not really sure.
I’ll watch the video right now.
Thanks everyone once again! I can’t wait to give these a try.
Say for instance the vehicle will run in this condition, you could call around to some shops and ask them to try to extract the bolt.
I don’t know if it’s safe to turn on the vehicle with one of the camshaft retainer bolts missing. Some one could chime in on this.
Well, I tried chiseling it and it seems I can get a groove, but every time I try to remove it with the screwdriver the bolt just falls apart and there is tiny metal pieces on my screwdriver. I don’t know if this is a good or bad sign.
I’m going to try the jb weld next.
Quoted From maximus20895:
Well, I tried chiseling it and it seems I can get a groove, but every time I try to remove it with the screwdriver the bolt just falls apart and there is tiny metal pieces on my screwdriver. I don’t know if this is a good or bad sign.
I’m going to try the jb weld next.
Well?! What happened?! This is a very suspense-filled post.
Yea, I know. This has literally been on my mind since Tuesday or Wednesday pretty much non-stop, I can barely sleep. When I can’t complete something I obsess over it and that’s what I’ve been doing over the past week..and trying to save some money…
I took a 1/4 inch chisel (the bolt is 8mm or .315 inch) and tried to chisel a slot for a flathead. Then I took the flathead and tried to turn it as it seem stuck. All I got so far was just little shavings of bolt. I have tried this around 15 times and I get the same result over and over (go figure).
I haven’t tried JB Weld yet. I did a test run of the JB Quik, and I twisted the bolts and they just came right off like it was nothing. So I guess I’m going to scrape that idea.
Next idea is to get a left hand drill bit or take it to a shop and have them get the damn thing out. I’m really over this and my head hurts from constantly thinking about it and researching. This has been my life for the past week and I just want to get the bolt out..
i am late in the game here to so i did not read it all but here goes.
get your self a 90* drill or adapter such as this http://www.google.com/products/catalog? … IsBEPMCMAA
then see if you can find a long enough left hand drill bit. then try to drill her out. note after so far in you want the drill bit to stick and turn the bolt out. BEFORE YOU DRILL use some tin foil and tape to mask off everything els around that hole so you don’t put metal shavings in the engine. also some grease on the drill bit will help stop shavings from being thrown around. do a very good job masking everything. if this does not work you will more then likely have to pull that 1 bearing cap off and use a easy out.
as a very last resort you may have to just drill the hole thing out and use some healy coil to replace the threads. not a great way of fixing it so try your best to not have to do this.
good luck
Quoted From maximus20895:
I don’t know if it’s safe to turn on the vehicle with one of the camshaft retainer bolts missing. Some one could chime in on this.
do not run the car with out that bolt in there. much bigger problems will come out of it.
I think you misinterpreted me on this, I was not advocating you “chisel a groove” and try and turn it out with a screwdriver but rather use a punch and try and knock it out in a counterclockwise direction as I show in this video with a rotor screw. I use this method a lot and it works quite well.
I understand. As of now, the problem is that the bolt is 2 inches deep in the hole so I can’t really angle a punch in there that great. I will go get a punch and try it though.
If you do it and like it then it must work quite well!
I also chiseled a groove and tried to turn it with a screwdriver, but the bolt seems to be “shredding” and little bits of it get on my screwdriver. Do you think the punch idea would still work even after all the torque that it needs to overcome? I guess it will by looking at your video since you can get it out with the punch, but not with an screwdriver.
- You must be logged in to reply to this topic.