valve spring failure results...
TECH Fanatic
Joined: Feb 2004
Posts: 1,259
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From: Lexington, KY
The "redesigned" 918's are still breaking from what I have read on here. They have had too many quality problems for me to trust them. Which is a surprise coming from comp. Go with PAC (the original/dependable 918's) or PSI if your gonna run singles.
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Launching!
Joined: Jun 2007
Posts: 212
Likes: 0
From: NC
I have heard that also, but have not seen any proof yet.
I just don't understand why they can't come up with a good 918. We did all the hard work with the design and testing. Then they gave up trying to copy our original and went with a total redesign. Which I've heard from a few people at PRI they've had problems with too.
I pull off in the morning with the car cold and I even run up the rpms' cold sometimes. Plus I have over 20K on my springs. Thats why i run dual springs and would suggest it to anyone thats going to go through the hassle of replacing springs in the first place. There are barely any bad stories involving dual springs.
I agree, I had 8 out of 16 fail on mine in the first week. I never did even rev it up past 4k during that time and always let the engine fully warm up before even driving. That was on a max lift of 573. I went duals after that..
TECH Addict
Joined: Nov 2005
Posts: 2,379
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I'm running duals, I've got 15k miles on it since putting them on, had to run the car in -8F weather once, gave it 2 min before I had to drive and nothing broken. Mind you I didn't beat on it, kept the rpm under 2500 but I still drove at highway speeds.
Duals give that piece of mind that in the event it does break, you still have a chance to save the head and some headache.
Duals give that piece of mind that in the event it does break, you still have a chance to save the head and some headache.
TECH Senior Member
Joined: Mar 2004
Posts: 14,620
Likes: 17
From: BFE
Staging Lane
Joined: Oct 2006
Posts: 83
Likes: 0
From: Iowa
A couple basic questions regarding the topic of this particular thread:
1. How did you know that the spring was broken? In other words, what noises did you hear or what indications were there to tell you there was a problem?
2. What other problems could occur from this spring failing?
1. How did you know that the spring was broken? In other words, what noises did you hear or what indications were there to tell you there was a problem?
2. What other problems could occur from this spring failing?
Thread Starter
Launching!
Joined: Oct 2006
Posts: 202
Likes: 0
listen predator-z,i ain't complaining...**** breaks...you well know regardless of recommended this or that,part failures occur...
i have no problems replacing the springs with another set of comp springs...here is another picture for you to mull over from your throne...
i have no problems replacing the springs with another set of comp springs...here is another picture for you to mull over from your throne...
Last edited by brokenfly; Mar 3, 2008 at 10:51 AM.
Wow! I have to wonder how many miles are on your engine.
Sorry about your misfortune, but it could have been much worse.
As long as that connecting rod is not bent, and the engine still turns,
you should still be able to run that bottom end.
Maybe clean the block deck and decarbonize the pistons ( if possible )
than blow it all out with air, to remove all debries. Maybe a slight dremel
action on the ridges.
Freshen up the heads, a new valve, new springs.
OR ???? --------> $$$
.
Sorry about your misfortune, but it could have been much worse.
As long as that connecting rod is not bent, and the engine still turns,
you should still be able to run that bottom end.
Maybe clean the block deck and decarbonize the pistons ( if possible )
than blow it all out with air, to remove all debries. Maybe a slight dremel
action on the ridges.
Freshen up the heads, a new valve, new springs.
OR ???? --------> $$$
.