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Old 12-26-2019, 06:58 PM   #1
1stinlastout
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Default Snapped Camshaft Capbolt

Finally getting the motor back together and I couldn't get the RH intake bolt to torque. I took it out and cleaned it up and tried to re-torque and snap.
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Old 12-26-2019, 07:39 PM   #2
1stinlastout
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Default Photos


Last edited by 1stinlastout; 12-27-2019 at 01:32 PM.
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Old 12-27-2019, 12:13 AM   #3
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Camt see the pic but put an ex out in the center and get a new one...mine stripped out during removal...local subaru got em quick for me...probably was just fatigued...
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Old 12-27-2019, 09:16 AM   #4
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Were you able to get it out?
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Old 12-27-2019, 01:31 PM   #5
1stinlastout
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I couldn't figure out to post the picture, but there is a link above. I was able to get it out very easily. I had to go to the Home Depot and pick up a screw extractor. I put it in and gave it a light tap and then turned it to the left. The broken part backed out just using my fingers. I thought I was going to have to tear down the head to get it out. I even had a new spare bolt on hand. I ordered one when I bought the replacement exhaust bolt that I destroyed when I disassembled the engine.
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Old 12-27-2019, 01:43 PM   #6
1stinlastout
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I thought I was going to have to tear down the head to get it out. I even had a new spare bolt on hand. I ordered one when I bought the replacement exhaust bolt that I destroyed when I disassembled the engine.

Those cap bolts are one of the big challenges of the turbo engines. This is my first go at it. Coming off and going back on were a bear. The spec is 133 ft lbs and I know when I was removing the one that stripped out I was putting well over 150 ft lbs on the 10MM hex when it stripped out. I took an old axle nut and welded it on and it came right off. I also ended up ruining the bakelite exhaust cam gear with a grinder before I went to the welder. Make sure there is no oil on the face of the cam gear where the cap bolt contacts it or it wont torque.
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Old 12-28-2019, 11:35 AM   #7
zcivic
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Default Snapped Camshaft Capbolt

Whoa 133 is way too much. 21-22 ft then additional 45 degree. At least on the ej25. Removal can be a pain. Iíve had pretty good luck with cam gear holders and 1/2 long handle breaker bar. Nothing ever goes as planned though.

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Old 12-28-2019, 12:48 PM   #8
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Man... if only someone made replacement bolts that had a nice proper hex head on them...
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Old 12-30-2019, 11:32 PM   #9
1stinlastout
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Quote:
Originally Posted by zcivic View Post
Whoa 133 is way too much. 21-22 ft then additional 45 degree. At least on the ej25. Removal can be a pain. Iíve had pretty good luck with cam gear holders and 1/2 long handle breaker bar. Nothing ever goes as planned though.
You are right. I was looking at the crankbolt spec. Well, I think I'm going to leave them over tight. I probably didn't rotate them much more than 45 degrees past tight. I think I'll just leave them tight like that.
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Old 12-31-2019, 11:20 AM   #10
awfulwaffle
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FWIW - I torque mine with a digital torque wrench that continues to display torque during the angle sequence. The final torque typically reads 100-130 ft-lbs, so 133 isn't an order of magnitude high or anything.
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Old 12-31-2019, 12:58 PM   #11
zcivic
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Surprised that 1/4 turn after 22lbs is getting an additional 80ft but on the older ej20 they only torque to 72 and they are a solid on intake and exhaust side. On the avcs going much higher then that I would be worried especially on removal because they are much harder to remove.
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Old 01-26-2020, 11:42 AM   #12
1stinlastout
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Default I removed one.

I am such an amateur. I came to the oil line on the driver's side and it has to go on before the intake cam sprocket is installed. Of course it stripped with a 10mm hex, but I was able to get it out with a Irwin 3/4" extractor, 3/8 breaker bar and a 4' pipe. I ran up to local dealer and picked up two new bolts so I would have a spare. I didn't want to reuse the old bolt because of the over torque and it got nicked up by the extractor.
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Old 01-26-2020, 12:07 PM   #13
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Quote:
Originally Posted by Turn in Concepts View Post
Man... if only someone made replacement bolts that had a nice proper hex head on them...
If only I'd remembered before buying a set of oems. Definitely will get a set of TIC if any of them have to be removed. I just referred my friend putting his engine together to visit Oakos.com to get a set of TIC bolts, he'd rounded one trying to remove it. He was stoked to find TIC makes a normal hex bolt. I felt stupid when he messaged me, because I'd forgotten to buy the TIC bolts for mine.


Hmmm...

Last edited by 2slofouru; 01-26-2020 at 12:33 PM.
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Old 01-26-2020, 12:22 PM   #14
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Quote:
Originally Posted by 1stinlastout View Post

Share your pics with https://img.nasioc.com/?lang=en , easy peasy
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