Damaged Head, Can This Be Fixed

[Simon-S14]

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

[GTSBoy]

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.

[Simon-S14]

If it were a non neo head you'd just bin it but neo heads hats to come by

[Dose Pipe Sutututu]

wow, those welds are fantastic, looks like bird shit LOL...

[Simon-S14]

Was welded with mild steel mig that's why lol

[WMDC35]

all the fab guys will be inspired!

[GTScotT]

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.

[Simon-S14]

More so the damage to the Chamber

[GTScotT]

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.

[Simon-S14]

Sweet. Any one know if there's any difference with neo valves?

[Adriano]

pretty sure they are 1mm bigger than 269 on both inlet and exhaust

[abr33]

If your worried about the chamber damage, get it crack tested.

Out of curiosity, what happened to do this?

[StevenCJR31]

is that a det neo head? if they are the same as a de neo head then it maybe worth getting one of those

[Simon-S14]

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

[R31Nismoid]

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

[StevenCJR31]

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?

[GTSBoy]

Ports are different. Chamber size too I think.

[Ben C34]

how are the det heads and de heads different?

neo de heads have tiny Ports for higher gas speed. They are heaps smaller. Edited May 31, 2013 by superben

[StevenCJR31]

does the de head have solid or hydraulic lifters?

[Simon-S14]

solid