Had a customer who just put in a cam about two weeks ago and came in with a SES light. Ended up being a 918 break on #1 cylinder. Replaced it and he was on his way.

The bad news...make that two 918's that I've seen break in the last month. <img border="0" title="" alt="[Sad]" src="gr_sad.gif" />

<small>[ July 02, 2002, 09:29 PM: Message edited by: Smoke_ur_5.0 ]</small>

 

what size cam?

 

Thats not good <img border="0" title="" alt="[Sad]" src="gr_sad.gif" />

 

I'd feel a ton safer running those than a set of 941's. We read about someone breaking a 941 at least 3 times a week back in the days. Breaking a 918 is a much more scarce issue IMO. Still pretty damn shitty that someone can't even come up with a valve spring that we can trust <img border="0" title="" alt="[Roll Eyes]" src="images/icons/rolleyes.gif" />

josh

 

It's a TR224 cam that the customer had installed himself. He bought the springs from me so I shot him a new one.

The wierd thing is I use the 918's myself along with a ton of you guys on here and I am the only one that has seen not one but two breaks. I still think the springs are pretty reliable though compared to the old crap 941's.

 

What was the code on the SES light?

 

SO what is the best spring available I am a newbie to the cam issue and am wanting to install the Thunder Racing 220/112 cam kit in my 2001 SS it will have SLP headers and random cats hooked to LM exhaust.It is a M-6 .commenst welcome please.
Eddy in Iowa

 

that blows I have almost 20k on my 2 year old set of 941's <img border="0" title="" alt="[Eek!]" src="gr_eek2.gif" /> I may replace them before long

 

Damn, that sucks! Luckily, mine are still going strong after 6 months of countless runs up to 7k rpms. <img border="0" title="" alt="[Big Grin]" src="gr_grin.gif" />

 

I'm still not worried at all-- there's simply too many 918's out there and too little (overall) failures.
Right now, I don't think you can go wrong with them--at least as far as proven failures go..
One question, Smoke--were these springs the same age?(AKA--from the same batch)
THAT would be worth looking into, for all of us, since there might have been an inferior grade of metal or something, on the latest production run... <img border="0" title="" alt="[Confused]" src="images/icons/confused.gif" />
Just a thought...
<img border="0" alt="[cheers]" title="" src="graemlins/gr_cheers.gif" />

 

oh yea, auto or stick <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" />

 

would you say he installed it wrong/incorrectly which made it fail so soon, or was it more likely a factory defect.

 

I'm still confident in my 918's. *knock on wood*

 

2 things:

1) That cam is an XE-R Race lobe, right?
2) The 918's that break.. break right away after install, like a defective one out of the box, not a stress failure after 4k.. 5k.. 8k miles, ie: 941's

Right?

 

</font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">would you say he installed it wrong/incorrectly which made it fail so soon, or was it more likely a factory defect</font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">How would he install them wrong? As far as I could see the spring was right side up and the retainer was being held by the keepers?

</font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">1) That cam is an XE-R Race lobe, right?
2) The 918's that break.. break right away after install, like a defective one out of the box, not a stress failure after 4k.. 5k.. 8k miles, ie: 941's

Right?</font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">I have no idea who Thunder has grind their cams. The first one broke within a week and the second in a couple of weeks after the install.

</font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Smoke--were these springs the same age?(AKA--from the same batch)
THAT would be worth looking into, for all of us, since there might have been an inferior grade of metal or something, on the latest production run...
Just a thought...</font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">They could very well be from the same batch. One of the broken springs came from a set I sold and the other was from TR. Funny thingwas that both springs were both broke in the same spot and had the same type of break....like there was possibly an internal crack in it.

The springs were delivered to the customer about the same time. I would still reccomend the 918's without a doubt.

<small>[ July 03, 2002, 08:35 AM: Message edited by: Smoke_ur_5.0 ]</small>

 

Oh my god a 918 spring broke? Time for everyone to freak out!

 

</font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by Terry Burger:
<strong>Oh my god a 918 spring broke? Time for everyone to freak out!</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif"><img border="0" title="" alt="[Razz]" src="gr_tounge.gif" />

 

</font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by Terry Burger:
<strong>Oh my god a 918 spring broke? Time for everyone to freak out!</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">Sounds like acceptable manufacturering QC failures out of the box. It's the 6k, 8k, 12k Russian Roulette **** the 941's had that drove me bonkers.

I sleep well at night with my 918's.

 

quote:
--------------------------------------------------------------------------------
would you say he installed it wrong/incorrectly which made it fail so soon, or was it more likely a factory defect
--------------------------------------------------------------------------------

How would he install them wrong? As far as I could see the spring was right side up and the retainer was being held by the keepers?

***They could be installed at the wrong height***

 

If it is who I think it is, I know it wasn't installed incorrectly.