Jump to content
SAU Community

Damaged Head, Can This Be Fixed

Simon-S14
 Share

Recommended Posts

Simon-S14 Grand Master

Simon-S14

Posted
Posted

Pulling this neo motor apart for someone atm and its got bent valves on cyln 3, the valve guides have snapped and ones missing all together, I have a feeling it broke up and went through the valve and into the chamber because theres damage on the head and piston.

see pics.. is it fixable?

also for lolz.. see the dodgy repair somone has done to the CAS bracket... wtf

https://www.dropbox.com/s/xvb0mno7h9c3qsp/20130530_072620.jpg



https://www.dropbox.com/s/h7iz696zt3308tr/20130529_172716.jpg


https://www.dropbox.com/s/70ltfi98jht5e6n/20130529_155924.jpg

Link to comment
Share on other sites
GTSBoy Grand Master

GTSBoy

Posted
Posted

There's hardly any damage there to be fixed.....so yeah, it can be fixed. Question is, how much will it cost compared to alternatives such as finding another one that hasn't been looked after by a three toed moron.

Link to comment
Share on other sites
GTScotT Grand Master

GTScotT

Posted
Posted

lol CAS bracket repairs like that are more common than you think, I've seen and heard of plenty going around. So dodge lol.

As far as the head goes it's repairable. I don't think the seat will be overly damaged, if at all. New guides, new valves, rock and roll.

Link to comment
Share on other sites
GTScotT Grand Master

GTScotT

Posted
Posted

The chamber is fine.

Mine had more det damage than that on the quench pads. I skimmed the head till it hit the pads to make up for it.


Just blend the pads so they don't have any hard edges.

Link to comment
Share on other sites
Simon-S14 Grand Master

Simon-S14

Posted
  • Author
Posted

yeah its a DET head, DE is different.

as for what happened.. im pretty sure the broken cas bracket and subsequent dodgy repairs lead to valves being bent and snapping the valve guides. not sure how it only bent intake valves on one cyln tho

Link to comment
Share on other sites
R31Nismoid Grand Master

R31Nismoid

Posted
Posted

Wasn't the belt coming loose or something?

Although when that happens, usually related to a tensioner wasn't replaced properly/at all, it'll take a few more valves with it or even snap them completely. Certainly got away with it pretty well

Link to comment
Share on other sites
StevenCJR31 Veteran

StevenCJR31

Posted
Posted

yeah its a DET head, DE is different.

as for what happened.. im pretty sure the broken cas bracket and subsequent dodgy repairs lead to valves being bent and snapping the valve guides. not sure how it only bent intake valves on one cyln tho

how are the det heads and de heads different?

Link to comment
Share on other sites
Ben C34 Grand Master

Ben C34

Posted
Posted (edited)

how are the det heads and de heads different?

neo de heads have tiny Ports for higher gas speed. They are heaps smaller. Edited by superben
Link to comment
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
 Share
Go to topic listing


  • Similar Content

  • Latest Posts

    • AdiR34
      ENR34 - Leaking Transfer Case

      By AdiR34 · Posted

      You guys are amazingly knowledgeable and I appreciate it all so much. I’m currently at the local RB tuning shop, getting her inspected and diagnosed, for the t-case debacle and everything else. I’ll keep you guys posted!
    • TurboTapin
      Lets play a game - What is causing my oil consumption?

      By TurboTapin · Posted

      Like @Dose Pipe Sutututu mentioned, 10W30 on a built motor would not be a great idea. As for the steel wool, we think alike as I went ahead and put SS wool into my catch can as per my above posts. 
    • Dose Pipe Sutututu
      Lets play a game - What is causing my oil consumption?

      By Dose Pipe Sutututu · Posted

      I am going to chime in here and say that is very bad advice for a built motor, making decent power of 400kW+ Especially if the rings have been gapped on the looser side. The more power you make the heavier you need your oil to be to be able to maintain that suspension between the moving parts, if not you'll have journals and bearings making love and grenade a motor. Remember that all moving parts inside the motor aren't ball bearing and are journal bearings and require oil to separate the surfaces from contacting.
    • 25RBGT
      Got this r31 silhouette flood car to rebuild.

      By 25RBGT · Posted

      Yeah I noticed this just now. No doubt she will be running smoother next start😂🤣😂
    • joshuaho96
      ENR34 - Leaking Transfer Case

      By joshuaho96 · Posted

      ENR34 manual transmission transfer cases are 33100-23U00 which is shared with all of the R32/R33 GT-Rs and GTS-4s. And the C34 Stagea. Do not bother with automatics, that is a huge effort to swap and the car will be worse for it. And an automatic transfer case does not have the right housing for the shifter which comes out the back of the transmission and goes through the transfer case. I already posted my response on reddit but if you didn't see it there here it is: You have almost certainly damaged the transfer case, the only question is how badly. Nobody can tell you how bad without more information. If you have a giant hole in the transfer case pissing out all the transfer case fluid then you need a new one. If it's not that bad then the only question is whether you burned up the clutches. Drain the transfer case oil and inspect for metal on the drain plug magnet. Small black filings are normal. Big chunks of metal or a ton of black fuzzies not so much. Fluid should be nice and red. Any other color isn't great. If the color is reasonably red and there's not a bunch of clutch material discoloring it or anything like that you probably got away with insubstantial excess wear not worth trying to fix. If you have to rebuild or replace the transfer case keep in mind you have to pull the transmission to get it off.
×
×
  • Create New...