Broken valve...the curse continues

[Darius]

You can look in their catalog, but the 300ZX valves are not the same as the RB25DET. I could be looking at the wrong 300ZX dimensions though.

http://www.ferrea.com/sportcomp06.html

FYI, I picked up a set of Ferrea valves for $484 shipped

[kouki-gymkhana]

That's a pretty good deal. I was able to find them for 22.53 a piece but the bastards raped me on the shipping even though my valves are literally going to be shipped about 40 miles from the factory to my house. Good luck with the rebuild (again.) I kind of agree with eh? with respect to the HG issue. The stock HG is good for 400+whp reliably so unless you're planning to slap on a gt35r or some other big snail in the next few months, you might as well go with the stocker. Just my $.02

[Chaos the Xile]

Because it's hard to get a mhg, especialy comectics, to seal properly. OEM gaskets are pretty damn strong and almost always seal correctly.

I speak from experience.

Yeah I have heard that too!

[wawazat8402]

Oh yeah thanks!!!I need to get a degree wheel from somewhere now.

http://www.enginelogics.com/im...l.jpg

[koukicody]

You can look in their catalog, but the 300ZX valves are not the same as the RB25DET. I could be looking at the wrong 300ZX dimensions though.

http://www.ferrea.com/sportcomp06.html

FYI, I picked up a set of Ferrea valves for $484 shipped

hes reffering to the Rb20

[Sil240]

http://www.enginelogics.com/im...l.jpg

NICE!!!Thanks!!!

[Darius]

Here's the latest update on the broken valve. It appears the valve snapped at the very base of the stem where it enlarges into the head. Luckily there were no dings in the top of the piston mostly because there was a thick oil sludge cake on the top of them for lubrication. That is a whole different story, but I'm thinking my turbo oil seal is shot and that my intercooler has about a quart of oil in it. It could also be some serious oil return from my valve covers or my valve seals. Just by the amount of oil caked on, I am assuming it is from my turbo...

[Carl H]

gross.when i ventalated my piston there was mad oil in the intake track but mine didnt look near as bad...just out of curiousity why did you remove the cams to retorque the head?if everything was set to tdc correctly then there should have been notches in the cams to allow you to slide a socket into the head and retorque.thats what i did when i pulled my motor back out to fix leaks on it, besides you arnt supposed to slacken the head stud nuts, only retorque to the proper value.and get rid of that fram filter crap...a used sock filters oil better.

[Sil240]

That's what ALL of my stock pistons looked like when I got my Blown motor.Actually a little worse, plus I had some mystery disc in my 6th cyl:

[Darius]

I have to pull the cams because the HKS cams do not have the notches in the side of them like the stockers do making it impossible to get a socket on the nuts.

And when I retorqued the head, I didn't slacken the stud nuts. I just tightened them down to the ARP specs of 70 ft-lbs for moly-lube or 80 ft-lbs for engine oil lube.

I'm only using FRAM right now because I have been going through oil like its free for various reasons (i.e. catch can full of milky oil, engine break-in, etc). I typically run WIX filters from NAPA because I've read that they are good and relatively cheap.

I am assuming that the oil is coming from the intake because all of the cylinders are evenly oily. It's not just one or two adjacent cylinders with the oil. The intercooler is coming off tonight to see if there's a sizeable amount of oil in it. If there's no oil in the intercooler, I will be shocked. Is there a way to pressurize your oil seals to see if they are leaky?

[kouki-gymkhana]

Hey Darius, did you get your Ferrea valves yet? I just pulled the head on my motor and removed the 2 intake valves that I thought were bent and when I compared the Ferrea ones to the OEM ones, they are WAY TOO LONG!!!! My intake valve overall length is like 86mm and the Ferrea's are 104.x

WTF!!?? UUUGGGHHHH! I'm so sick of this ****ing car. It looks like the valves that they sent me are, in fact, identical to the specs in their catalog but are not like the ones in my motor. Anyone have any ideas? Can I just take the valves to a machine shop and have them cut them down to length? I really don't know what to do at this point because I literally have 2 more days to get the car running before I have to leave town again for 4 months.

Help

[Sil240]

Did you call Ferrera yet??What did they say??Send them right back and tell them to NEXT DAY the right ones.

[Darius]

WTF?! I didn't get mine yet, but did look at this briefly. The Ferrea catalog lists the intake valves as being 104.2mm long, but the R33 FSM lists the intake valve length at 85.3-85.5mm. Ferrea lists the exhaust valves as being 97.95mm and the FSM lists them at 87.3-87.5mm.

That doesn't make any sense to me why they would have all of the head characteristics right on, but the length way off?? I'll call them too and see what's up.

[Darius]

Ok just got off the phone with Zeke and he is the s*** ! He said the valves listed for the RB25 were most likely for the R34 NEO motor. He also said I could just send my (our) valves back in and he would cut them to length and put the retainer groove in for free! We just have to specify the lengths that I listed above and the retainer groove location. That measurement is 80.78-81.08mm from the tip of the head on the intake valves and 82.78-83.08mm from the tip of the head on the exhaust valves.

Send them here:

Ferrea ValvesAttn: Zeke2600 NW 55th Ct.Ft. Lauderdale, FL 33309

The phone number is 1-888-733-2505 if you want to call. I gave him a heads up that you also had an issue KG, so he's expecting to hear from you.

Modified by Darius at 9:00 AM 2/6/2007
Modified by Darius at 9:03 AM 2/6/2007

[Sil240]

Wow, Ferrea is 8 minutes from my house.

[l0nestar]

Well that is good to hear! At least you don't have to buy another set of valves!