R50/53 Brand new Sneed Speed head, horrendous valvetrain noise
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1st Gear
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Brand new head, horrendous valvetrain noise
So I got a new Sneed Speed Street head on my car, install went fine with no real speed bumps. I just started it for the first time and the valve noise is horrendous. Im talking 12valve Cummins on a cold day with no oil bad. Anybody have any insights into why this might be? I put a couple ounces of oil in the top of each piston like i always do on engine rebuilds to lubricate the top end on startup so it shouldn't be an oil starvation issue. I only let it run for about 5 minutes before I shut it down because I'm worried, car runs perfectly and isn't throwing any codes, just sounds like a damn diesel. Kinda wish I would've checked the valve lash before putting it all together but I don't feel like I should have to do that with a part I bought from a reputable speedshop. Anyways, any insight anyone might have would be great, I'm getting to the point where I'm about ready to cut my losses and sell the damn thing.
Thanks, Stoney
edit: my intention here isn’t to drag Sneed Speeds name through the dirt, just wanted the full facts of my situation known to anyone trying to help me
Thanks, Stoney
edit: my intention here isn’t to drag Sneed Speeds name through the dirt, just wanted the full facts of my situation known to anyone trying to help me
Last edited by Stoney_lowe; Sep 25, 2018 at 10:45 PM.
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I took pictures and oriented everything exactly as it was sent to me, I’m taking my valve cover off after work today to recheck everything though
Last edited by Stoney_lowe; Sep 26, 2018 at 11:27 AM.
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I say it because one tech that first installed my Kent cam did this on the exhaust side, he rechecked it three times and said nothing was wrong, others insisted it was the chain but were wrong, I borrowed some new rockers from one of new new heads and fault fixed, I didn't notice on removal as I was just swapping bits and had concluded it was the rockers, so fitted them and the noise went. Ok I thought, just the rockers. Roll on several months I fitted a modified head, on removal of the current one I repatriated the borrowed rockers, and it was then I say the exhaust shaft upside down! Worth a check, it cost 26hp on the rollers ;O)
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Ok I’ll check it out thanks for the input, you know if there’s any easy way to see if they’re upside down just with the valve cover off or wil i have to pull the rocker shafts as well?
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