Who doesn't love some engine carnage in the morning?
10-19-2016, 04:50 AM
#1
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Who doesn't love some engine carnage in the morning?
An owner dropped off his S to us the other night. He told me he accidently misshifted and over revved it and it began to make a ticking sound. Presumed some sort of retainer cracking issue. Well after discussing with him the minimum of a head rebuild here, we decided to go through our normal motions of removing a cylinder head but planned to stop if we saw damage that went past that and regroup. Well, after removing some of the simple items (wiring harness around the head, factory air box, etc.) I went ahead and began to remove the valve cover, and that's when the smell began. Once the 5 valve cover bolts were out an absolutely terrible burning smell filled the garage. Knew it could not have been good what was lying under the cover. Here was what was left to the cylinder head once we pulled it off.....
As you can see the entire head is burnt. And this is not just the typical look of conventional oil and high mileage (this ap1 has just over 70k by the way), this was like a scorched earth policy. Everything was pitted and burnt oil scale build up.
Now to the close ups....
Notice how the oil burnt into the side of the cam bridge here..
Almost every cam cap was in the this shape in regards to scoring and overheating.
After seeing all of this, only one thing could lead to this amount of damage, and sure enough, ran dry on oil. Time for a new engine for this owner.
As you can see the entire head is burnt. And this is not just the typical look of conventional oil and high mileage (this ap1 has just over 70k by the way), this was like a scorched earth policy. Everything was pitted and burnt oil scale build up.
Now to the close ups....
Notice how the oil burnt into the side of the cam bridge here..
Almost every cam cap was in the this shape in regards to scoring and overheating.
After seeing all of this, only one thing could lead to this amount of damage, and sure enough, ran dry on oil. Time for a new engine for this owner.
10-19-2016, 05:07 AM
#2
Ugh! Wonder what the bottom end looks like. 
10-19-2016, 05:11 AM
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Depending on the owners finances (he already dropped a good amount of money for a full Brian Crower valve train kit for this), might be tearing the block down sometime soon.
Current options for him are....
1. JDM engine import swap
2. Used engine from some S owner
3. Have inline pro rebuild this bottom end. Seeing the top end, I am sure that would include fully sleeved and all. And then sourcing a good used assembled head and putting in his Brian crower parts.
Current options for him are....
1. JDM engine import swap
2. Used engine from some S owner
3. Have inline pro rebuild this bottom end. Seeing the top end, I am sure that would include fully sleeved and all. And then sourcing a good used assembled head and putting in his Brian crower parts.
10-19-2016, 05:23 AM
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I could not agree more. The intake cam is quite seized in place on the journals (a plastic hammer is the minimum it is going to take to get it out), but yet it still was running.
10-19-2016, 05:42 AM
#6
BTW... love the drum kit. 
10-19-2016, 05:54 AM
#7
To lock your photos, so others can't see your PB site... go to your Avatar (on PB). Choose SETTINGS. Then PRIVACY. Unclick appropriate boxes. I also clicked onto, WHEN I UPLOAD, PREMANENTLY REMOVE...
This will only work AFTER you reset the SETTINGS. So, any photos you've posted before, will be linked to your PB.
This will only work AFTER you reset the SETTINGS. So, any photos you've posted before, will be linked to your PB.
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10-19-2016, 06:19 AM
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To lock your photos, so others can't see your PB site... go to your Avatar (on PB). Choose SETTINGS. Then PRIVACY. Unclick appropriate boxes. I also clicked onto, WHEN I UPLOAD, PREMANENTLY REMOVE...
This will only work AFTER you reset the SETTINGS. So, any photos you've posted before, will be linked to your PB.
This will only work AFTER you reset the SETTINGS. So, any photos you've posted before, will be linked to your PB.
And yeah the drumset has been 15 years in the making
10-19-2016, 11:46 AM
#9
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Running out of oil in an S2000 engine cannot starve and cook the top end like that. The lower end would let go and seize, even then it won't starve the cam towers.
A lower end driving the top end for a prolonged period is the only way. Even if the oil was empty, it is not the cause of the upper end failure.
Number one cause is a loose camwheel bolt.
A lower end driving the top end for a prolonged period is the only way. Even if the oil was empty, it is not the cause of the upper end failure.
Number one cause is a loose camwheel bolt.
10-19-2016, 12:15 PM
#10
Running out of oil in an S2000 engine cannot starve and cook the top end like that. The lower end would let go and seize, even then it won't starve the cam towers.
A lower end driving the top end for a prolonged period is the only way. Even if the oil was empty, it is not the cause of the upper end failure.
Number one cause is a loose camwheel bolt.
A lower end driving the top end for a prolonged period is the only way. Even if the oil was empty, it is not the cause of the upper end failure.
Number one cause is a loose camwheel bolt.
