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Corvette
C4 Forum
Saving a 90 ZR-1 in hibernation 20yrs. Cheap for a reason. FlyNDrive #7
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<blockquote data-quote="VikingTrad3r" data-source="post: 331408" data-attributes="member: 2229"><p><strong>quick update</strong></p><p></p><p>Big day in the drizzle of feb in portland <img class="smilie smilie--emoji" loading="lazy" alt="😎" title="Smiling face with sunglasses :sunglasses:" src="https://cdn.jsdelivr.net/joypixels/assets/8.0/png/unicode/64/1f60e.png" data-shortname=":sunglasses:" /></p><p></p><p>I have recorded <strong>alot</strong> of video today of pulling the driver side head with a full walk through. We are fairly sure we have retraced the steps that a prior owner took on this car.</p><p></p><p>As far as we can tell….At some point, there was interference between the piston and valve, on a couple cylinders. One valve broke off. It was caught on the low side of the cylinder, standing on edge. It left an imprint on both the head and the piston top.</p><p></p><p>Ok but in addition to this, there are valve kiss marks all the way across the drivers side head.</p><p></p><p>Here is the thing. We FOUND a valve under the battery. It had been there a long time. The work on the heads doesnt look to be that old. You can see the blueing that was put there prior to lapping. 3 valves were worked.</p><p></p><p>We found all head bolts loose. The head had definitely been pulled as it had the work done to it.</p><p></p><p></p><p>Then, at some point, a decision was made to slap everything back together but not tighten anything. The head bolts were all loose. The lifters were not even in the head. Two valves were missing the springs.</p><p></p><p></p><p>Now truth is, in my opinion, there is actually a world that exists where this thing gets all cleaned up, the missing parts purchased from Chumpvette, the one headgasket reinstalled, and this car could be driven home. With some steel wool i think i could even bring the cams back…..but dont worry Chump wont let me do that. Lets just say his standards for ZR-1 treatment is very high <img class="smilie smilie--emoji" loading="lazy" alt="👍" title="Thumbs up :thumbsup:" src="https://cdn.jsdelivr.net/joypixels/assets/8.0/png/unicode/64/1f44d.png" data-shortname=":thumbsup:" /><img class="smilie smilie--emoji" loading="lazy" alt="👍" title="Thumbs up :thumbsup:" src="https://cdn.jsdelivr.net/joypixels/assets/8.0/png/unicode/64/1f44d.png" data-shortname=":thumbsup:" /></p><p></p><p>Truth is i kinda want to do that. There is a thing in me that wants this to be a fly n drive. Albeit it would take a second trip. And some gaskets.</p><p></p><p>…..Meanwhile cyl 5 has a dent on its sleeves top, outboard side. so yeah.</p><p></p><p>So, what makes the most sense here is to yank the engine, and send it out for the full enchilada. It will likely save me $2000 to ship to and from here.</p><p></p><p>We have been very busy here and i will get a video posted up tonight <img class="smilie smilie--emoji" loading="lazy" alt="👍" title="Thumbs up :thumbsup:" src="https://cdn.jsdelivr.net/joypixels/assets/8.0/png/unicode/64/1f44d.png" data-shortname=":thumbsup:" /></p></blockquote><p></p>
[QUOTE="VikingTrad3r, post: 331408, member: 2229"] [B]quick update[/B] Big day in the drizzle of feb in portland 😎 I have recorded [B]alot[/B] of video today of pulling the driver side head with a full walk through. We are fairly sure we have retraced the steps that a prior owner took on this car. As far as we can tell….At some point, there was interference between the piston and valve, on a couple cylinders. One valve broke off. It was caught on the low side of the cylinder, standing on edge. It left an imprint on both the head and the piston top. Ok but in addition to this, there are valve kiss marks all the way across the drivers side head. Here is the thing. We FOUND a valve under the battery. It had been there a long time. The work on the heads doesnt look to be that old. You can see the blueing that was put there prior to lapping. 3 valves were worked. We found all head bolts loose. The head had definitely been pulled as it had the work done to it. Then, at some point, a decision was made to slap everything back together but not tighten anything. The head bolts were all loose. The lifters were not even in the head. Two valves were missing the springs. Now truth is, in my opinion, there is actually a world that exists where this thing gets all cleaned up, the missing parts purchased from Chumpvette, the one headgasket reinstalled, and this car could be driven home. With some steel wool i think i could even bring the cams back…..but dont worry Chump wont let me do that. Lets just say his standards for ZR-1 treatment is very high 👍👍 Truth is i kinda want to do that. There is a thing in me that wants this to be a fly n drive. Albeit it would take a second trip. And some gaskets. …..Meanwhile cyl 5 has a dent on its sleeves top, outboard side. so yeah. So, what makes the most sense here is to yank the engine, and send it out for the full enchilada. It will likely save me $2000 to ship to and from here. We have been very busy here and i will get a video posted up tonight 👍 [/QUOTE]
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Corvette
C4 Forum
Saving a 90 ZR-1 in hibernation 20yrs. Cheap for a reason. FlyNDrive #7
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