I'm taking off head bolts, those damn things are tight! I broke a 3/8 drive craftsman wrench already. Got it replaced, I have one head bolt(on top of cylinder head) that has rounded edges next one to it started to round also. How can I get these bolts off.


Is there an efficient way to remove these bolts?

 

Go to autozone and buy this



You want the deep well one because they can reach those recessed bolts on the head. I broke 2 5/8 sockets and two swivel extensions during the last head gasket job I did. It also helps if you have somebody to apply downward pressed on the socket while somebody else turns the breaker bar.

good luck

 

You need a six point impact socket

 

We got them out, thanks for the tips. I'm going to get that irwin set.

 

Impact socket and impact wrench, zip them puppies right out.
Remove the hood for better access.

 

This is correct. You should never use a 12pt socket on head bolts. Clean the area around the bolt extremely well first. Got the socket on the bolt head 100% square. Apply lots of downward pressure with one hand and turn the breaker bar with the other hand.

 

I have removed head bolts on and engine stand with a 6 point but the last truck I worked on it didnt matter what we used. Those bolts were IN THERE and the heads were made of butter. I just used the extracter on all of them if they were stripped or not and it worked like a damn charm

 

Curious: would someone please provide the complete specs on these head bolts?
Ie. length, thread size, diameter etc. (also, are there any that may be different size etc for some reason). Want do run this info through some friends that deal with aircraft parts and see if they can match up these specs to specially tempered aircraft bolts. Do know that standard bolts sold by auto stores and local fix-it shops are nowhere comparable to bolts used on aircraft. Just curious and thought I would inquire. Then I'll make sure to pass the info on here as well. Thanks.

 

Done ok can someone tell me if the "water jets"(where coolant passes threw the block) should it look like that( far right one with the small hole at top) why isn't it fully open like the far left one?

 

CHUCK,

The normal head bolts are made such that stretch as part of the torging and are a one time use.

ARB makes special high strength studs that can be used in place of the standzard bolt. These are often used in high performance/turbo applications or in standard engines as well.

I was an Aviation Electrician on USN planes. Best to leave the aircraft stuff for the aircrafts. What you are asking someeone to do is no easy task, digging up "all the specs'" for you the trying to cross reference.

Take a look at D&D Engineering, they are already the experts in these engines.