Didn't remove cam cap bolts in sequence.
#1
Didn't remove cam cap bolts in sequence.
Am I screwed. I was in a hurry trying to get my head bare to get it machined and I didn't think to remove the cam cap bolts in the specified order in the repair manual.
The book suggests that it can mess up bearings and bend the cams.
I feel like a massive moron. At least I had the brains to loosen em all slightly rather than just unbolting each cap and moving on.
Is this common to warp the cam?
Just another thing to worry about after dealing with a blown head gasket!
The book suggests that it can mess up bearings and bend the cams.
I feel like a massive moron. At least I had the brains to loosen em all slightly rather than just unbolting each cap and moving on.
Is this common to warp the cam?
Just another thing to worry about after dealing with a blown head gasket!
#3
You're probably fine, I've heard that it's possible to bend stuff if you do it in the wrong order, but I've never heard someone say it actually happened to them. If it were me, I'd bolt the cam back in (sequencing it per the manual this time) and see if the cam still turns smoothly. If so, I wouldn't worry too much about it.
--Ian
--Ian
#4
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It's perfectly fine. If you're paranoid, do what codrus suggested above, but I wouldn't even give it a second thought.
Personally, I have never heard of such a thing. You crack the bolds lose in a rotating pattern, and then remove as you go. I have never seen that to be a problem.
Personally, I have never heard of such a thing. You crack the bolds lose in a rotating pattern, and then remove as you go. I have never seen that to be a problem.
#5
It never even crossed my mind that it would be a problem.
I loosened each bolt a bit moving from cap to cap down the cam to the other end then on the next cam and did the same and then removed each bolt and then cap starting where I began.
In my mind the only way this could warp a cam is if the head is warped but if this was the case then the cams wouldn't spin off the block and would need the head bolted to block to correct the warp and be flat again. Which means all cylinder heads are warped.
Have any of you ever removed cams in a fancy unbolting process?
I loosened each bolt a bit moving from cap to cap down the cam to the other end then on the next cam and did the same and then removed each bolt and then cap starting where I began.
In my mind the only way this could warp a cam is if the head is warped but if this was the case then the cams wouldn't spin off the block and would need the head bolted to block to correct the warp and be flat again. Which means all cylinder heads are warped.
Have any of you ever removed cams in a fancy unbolting process?
#7
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I have removed the cam caps in just about every oder imaginable on a miata head over the years. I have just always done a little bit at a time on each bolt then moved on the next. Never had an issue with any of my cams.
#9
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Theoretically it can cause issues, but in reality it's difficult to actually mess it up.
Head bolts are another story, though. Loosen those end-to-end and you run a real risk of warping the cylinder head a little bit.
Head bolts are another story, though. Loosen those end-to-end and you run a real risk of warping the cylinder head a little bit.
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