cykaaro
NAXJA Forum User
- Location
- ontario, canada
One of my valve cover bolts is broken. I pulled out the bolt, or rather what's left of it, and the other half is still in the head. How do I get this thing out so I can replace the bolt?
-
Welcome to the new NAXJA Forum! If your password does not work, please use "Forgot your password?" link on the log-in page. Please feel free to reach out to [email protected] if we can provide any assistance.
HELP!! valve cover bolt broke off
- Thread starter cykaaro
- Start date
dizzymac
NAXJA Forum User
- Location
- New Hampshire
Is it flush with the head, sticking up above, or did it break down inside the head? I have welded another bolt to the part sticking up out of a head and then backed it off. I also have used a shorter bolt in a bolt hole that has bolt broke off down inside the bolt hole and just left the other piece in the hole, not the best to remedy a broken bolt but it worked in a non-critical application.
cykaaro
NAXJA Forum User
- Location
- ontario, canada
I've not taken the head off thus far, but it appears to be broken at about the half way mork of the threaded part of the bolt. The bolt itself doesn't seem to grip anything and just sit there,so I'm thinking it's snapped at the head more than likely. It's the back side bolt on the drivers side of the cover.
Unfortunately I don't have a welder, or anything to extract it right now. The only thing I can think of right now is to take it to a auto place I know near by, or an engine rebuild place I was recommeneded to go see. What would I be looking at $$ wise to have it extracted?
On another note, what do I need to use for the gasket/etc on it once I remove and ready to put the cover back on?
Unfortunately I don't have a welder, or anything to extract it right now. The only thing I can think of right now is to take it to a auto place I know near by, or an engine rebuild place I was recommeneded to go see. What would I be looking at $$ wise to have it extracted?
On another note, what do I need to use for the gasket/etc on it once I remove and ready to put the cover back on?
langer1
NAXJA Forum User
- Location
- Mineral City,Ohio
cykaaro
NAXJA Forum User
- Location
- ontario, canada
Will have to see if I can find one here and small enough, since the bolt is pretty small in diameter.
jblaze5779
NAXJA Forum User
- Location
- Arlington, TX
You can buy tap sets at sears they come in different sizes, basically jsut a backwards drillbit. the inside of the bolt should be soft.
Last time I did it I punched a divit in the top of the broke off bolt with a small punch and then put the tap in the divit and hit it lightly a couple times with a hammer and then attached the drill, then just reverse it out.
Last time I did it I punched a divit in the top of the broke off bolt with a small punch and then put the tap in the divit and hit it lightly a couple times with a hammer and then attached the drill, then just reverse it out.
cykaaro
NAXJA Forum User
- Location
- ontario, canada
jblaze5779 said:
Will check the Sears up here and see what they have. It'll have to be a pretty small one though. Hoping it comes out without problems.
cykaaro
NAXJA Forum User
- Location
- ontario, canada
RyleyF said:
To me it is, especially since it's one of the back bolts which tend to be the ones that come loose.
AZ Jeff
NAXJA Forum User
- Location
- Gilbert, Arizona
It's not a big problem if you don't mind a leak where the one bolt is missing/broken.RyleyF said:
If the cover can really seal with less bolts, Chryco would have equipped the cover with less bolts.
Onkover
NAXJA Forum User
- Location
- Red Bluff CA.
I snapped one off building my eninge and have ran it for 500 mies without a leak so far.... Might not be that bad but I see your point of wanting to get it out. I stopped fighting with it and gave up after smoking 3 bits.
jblaze5779
NAXJA Forum User
- Location
- Arlington, TX
cykaaro said:
the one that I used was very thin, looked exactly like one of those skinny wood drillbits
a steady hand is really all you need
bajacalal
NAXJA Forum User
- Location
- San Diego (North County), California
jblaze5779 said:
Agreed and I also add that a using a cutting oil is a good idea and don't apply a huge amount of pressure, don't run the drill continuously, stop to let the bit cool. Keeping the bit from getting hot is important because heat de-tempers steel and it loses its hardened properties.
