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San Antonio 3rd Gen Organization :: Technical Questions :: Engine :: Rocker help
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townaj
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Re: Rocker help
« Reply #15 on Jun 2, 2010, 6:37pm »
I wish that was my problem. I think at least one of my lifters has kicked the bucket. Trying to re adjust the lash today I noticed that the intake pushrod on cylinder number 8 kept getting loose after I had tightened it down. That seems like it would be a problem lol. Think thats it?
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townaj
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Re: Rocker help
« Reply #16 on Jun 2, 2010, 9:15pm »
Ok so it seems new lifters are in order. After re doing the valve lash I took it around the block-not even a 2 minute drive-and they are back to knocking. So any guesses as to what happened to my lifters? I don't really know how they work so I'm not sure what would fail in them. Also I would like advice on new ones. I need something that can handle high rpm's, because apparently that set couldn't. Thanks again for all your help guys.
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monkihead
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Re: Rocker help
« Reply #17 on Jun 3, 2010, 11:05am »
Lifters can collapse when rev'd excessively, lack of lubrication or defective.

Any 817 lifter won't handle high rpms. You need to get the 817R, that can handle 6-7k rpm. Just an fyi, they make a ticking sound from the beginning and is noticeable.
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townaj
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Re: Rocker help
« Reply #18 on Jun 3, 2010, 3:12pm »
I don't really care if they tick. I just knew that it probably wasn't normal for mine to be doing that. Ok I'll look into those. Gonna head to Alamo Performance tomorrow and figure some stuff out. Hopefully I'll have it going again soon. Know anything about those other "high rev" lifters? Are they pretty much all the same or what?
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Re: Rocker help
« Reply #19 on Jun 3, 2010, 5:01pm »
Do you work close to Alamo Performance? I'm miles closer to La Vernia than them. High rev lifters have an stronger spring and clip. They can vary by brand.
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townaj
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Re: Rocker help
« Reply #20 on Jun 3, 2010, 6:12pm »
Nope but my mom does, so she runs by there for me sometimes, but I gotta pick up lifters and plug wires tomorrow. But I can stop by and see you too cus today was the last day of school! Where are you located? So those lifters are fine for low rpm use too? I wonder why they don't make all lifters like that, if the only side effect is slight noise. Just less expense maybe?
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Re: Rocker help
« Reply #21 on Jun 3, 2010, 6:24pm »
They work well at low and high rpms. They don't make all lifters like that due to costs. a stock lifter will run you 2.50-3$ each, where the high rev run 4.5-5 ea. Not everyone makes power past 5500 rpm. I know I don't and I'm not willing to pay the price for high rev hydraulic roller lifters. Even when I get a discount on them.
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townaj
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Re: Rocker help
« Reply #22 on Jun 3, 2010, 6:49pm »
Thats a good point. I forgot about that power thing lol. Hopefully tomorrow I'll have the car done in time to take it to the strip. You work at Extreme Performance? I think I may have heard of them before...not sure though.
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monkihead
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Re: Rocker help
« Reply #23 on Jun 3, 2010, 7:18pm »
Yep, I work there. If I get my tpi sold, I'll be at the track tomorrow.
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townaj
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Re: Rocker help
« Reply #24 on Jun 3, 2010, 8:08pm »
Hmm I might swing by there tomorrow then. Alamo wants 200 bucks for a set of lifters my mom just told me!! Thats 12.50 a piece! Hopefully they have other sets too. But if they don't, do you know if ya'll have a set in stock?
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Lucid
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1986 Chevy Camaro Z28

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Re: Rocker help
« Reply #25 on Jun 4, 2010, 4:23am »
Give Mission Auto Parts a call

Mission Auto Parts and Machine Shop
2918 Roosevelt Ave.
San Antonio, Tx. San Antonio

Phone# 210-921-2803
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townaj
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Re: Rocker help
« Reply #26 on Jun 4, 2010, 7:57am »
Oh yeah I forgot about them. They did all my machining, balancing, etc. Danny's a cool guy. Well here we go im headin out..
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monkihead
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Re: Rocker help
« Reply #27 on Jun 4, 2010, 10:06am »

Jun 3, 2010, 8:08pm, townaj wrote:
Hmm I might swing by there tomorrow then. Alamo wants 200 bucks for a set of lifters my mom just told me!! Thats 12.50 a piece! Hopefully they have other sets too. But if they don't, do you know if ya'll have a set in stock?


Thats nuts! I just checked and I don't have any on the shelf. I can get some later today, but I'm sure you want to install them before you head to the track.
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townaj
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Re: Rocker help
« Reply #28 on Jun 4, 2010, 3:50pm »
Yeah I think my mom meant to say rockers lol. I don't know if I'm gonna go tonight. If I do I'm not bringin the camaro. Its running way too damn hot. It got up to 220 today in traffic. Then I got pulled over again. I hate this.
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monkihead
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Re: Rocker help
« Reply #29 on Jun 4, 2010, 4:49pm »
That makes more sense. Roller rockers vary from 160 to 300$. The guy didn't pick up the tpi setup, so I'm not going out there.
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