Recent content by Gbody5

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    Knock / Rattle after valve spring replacement uggh

    It was very clean inside, cam gear not missing any teeth, tensioner had slight wear but no deep grooves and not all all torn up. Car only has ~54K miles and has always been very well maintained and not drag raced.
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    Knock / Rattle after valve spring replacement uggh

    She's very quiet now, I'm sure the water pump was making a little noise to boot.
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    Knock / Rattle after valve spring replacement uggh

    Oil pan? Really? Nothing like a kick in the gut when you think all is well in Turbo land.
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    Knock / Rattle after valve spring replacement uggh

    Replaced, or should I say installed the GM needle bearing cam button, there was none, yikes! Crazy, this front cover had never been off, original cam sprocket with teflon teeth and original water pump, S hose etc. Of course new Timing set and water pump went in. Talk about relieved!
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    Knock / Rattle after valve spring replacement uggh

    Is that for roller cam only or stock cam too?
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    Knock / Rattle after valve spring replacement uggh

    Further diagnosis has led us to the Cam Thrust Button. Suspecting it was already worn to some degree and the new valve springs have added load to the Cam and causing it to walk and thus bang against the front cover/block. There is a GM Service Bulletin ( 87-6-21) addressing this with a GM Part #...
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    Knock / Rattle after valve spring replacement uggh

    Will do! I already started looking at new Flex Plates, Turbo Buicks forum had a thread recommending Full Throttle Speed SFI External Balanced, interestingly enough at FTS they showed customers who bought the Flex Plate also bought valve springs. Wondering if I maybe had a hair line crack and...
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    Knock / Rattle after valve spring replacement uggh

    OK, so I'm leaning towards a cracked Flex Plate or maybe something in the Trans Pump, hoping the former. The noise does not come in for 15 or 20 minutes after cold start when only idling. If I drive it it comes in sooner. And is very temperature sensitive. The hotter it is outside and the more...
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    Knock / Rattle after valve spring replacement uggh

    Checked the TC bolts, all tight, never been off lol, thanks
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    Knock / Rattle after valve spring replacement uggh

    Thanks, will check it out!
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    Knock / Rattle after valve spring replacement uggh

    Runs fine, actually more responsive with the new springs, cam and lifter are all stock. Just this crazy knock. I'll pick it up Monday and try to get a video.
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    Knock / Rattle after valve spring replacement uggh

    Engine has 54K miles, not a racer, well maintained, just replaced the valve springs with the heavy duty ones, 100#. Engine ran fine for 20 minutes or so while I bled the brakes, then after I drove 5 miles and came to a stop I hear a rattle/knock. It's only at idle, goes away as soon as I build...
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    TB Gasket

    OK guys, been a few years but I'm back. Got a silly question, is there supposed to be a gasket between the Throttle Body and Plenum? I can't tell if I have one, looks like not. I have a slight hesitation just off idle and can see my TB is a little dirty from the outside so I was planning on...
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    2012 Hotrod Power Tour

    Oh yea, in my GN, IL plates BAD BLK 6
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    2012 Hotrod Power Tour

    I'll be in Champaign and St. Louis.
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