Hungry Hungry GTO

"CaptDale - is secretly British" (captdale)
09/10/2018 at 19:45 • Filed to: Pontiac, Gto

Apparently my GTO decided that the cam and lifters were too tasty to pass up on. I can’t believe how pitted overy lobe and lifter are and how much wear through the hard face there is.

DISCUSSION (45)

RallyDarkstrike - Fan of 2-cyl FIATs, Eastern Bloc & Kei cars > CaptDale - is secretly British
09/10/2018 at 19:48

Is the whole engine toast?

Chariotoflove > CaptDale - is secretly British
09/10/2018 at 19:50

Ugh. What’s going on?

Highlander-Datsuns are Forever > CaptDale - is secretly British
09/10/2018 at 19:56

Doesn’t that happen when there is inadequate oiling?

I like cars: Jim Spanfeller is one ugly motherfucker > CaptDale - is secretly British
09/10/2018 at 19:57

Time for solid lifters I guess?

DipodomysDeserti > CaptDale - is secretly British
09/10/2018 at 19:59

How many miles in the engine? W hat oil and intervals have you been using? Looks almost like corrosion. Has the car ever sat for a while?

Decay buys too many beaters > CaptDale - is secretly British
09/10/2018 at 20:03

That’s probably going to require further disassembly. I’d be worried about all my bearings lookin g like that, if exposed to the same issue that caused the issue here .

Berang > CaptDale - is secretly British
09/10/2018 at 20:05

Is this what happens when there’s not enough zinc in the oil?

dogisbadob > CaptDale - is secretly British
09/10/2018 at 20:06

Time for an LS9 swap :o)

SPAMBot - Horse Doctor > CaptDale - is secretly British
09/10/2018 at 20:25

Fuck dude, this is nightmare fuel. Did you maybe lose oil pressure or did a seized roller just send metal everywhere wrecking the rest? Are you thinking rebuild or junkyard LS?

CaptDale - is secretly British > SPAMBot - Horse Doctor
09/10/2018 at 20:32

I am not sure. Kind of thinking it might be too much lift for the heads. Not sure. Gonna have to rebuild it. Unless you know anyone that wants to gift me a LSA or LS9

CaptDale - is secretly British > DipodomysDeserti
09/10/2018 at 20:33

6 5k on the car total. Been using Mobile 1 5w30 as required by GM every 5k miles. Well 2006-2015 the previous owner put 10k on it

CaptDale - is secretly British > RallyDarkstrike - Fan of 2-cyl FIATs, Eastern Bloc & Kei cars
09/10/2018 at 20:33

CaptDale - is secretly British > dogisbadob
09/10/2018 at 20:33

I wish

CaptDale - is secretly British > Chariotoflove
09/10/2018 at 20:34

We are figuring that out

AMGtech - now with more recalls! > CaptDale - is secretly British
09/10/2018 at 20:34

Some of that just looks like shitty metallurgy. What make are the cam and lifters?

Akio Ohtori - RIP Oppo > CaptDale - is secretly British
09/10/2018 at 20:42

Well that is something anyway.

Ash78, voting early and often > CaptDale - is secretly British
09/10/2018 at 20:47

Call up Hinson and ask around. He does so many LS swaps, I bet he has some “take off” parts he might be able to sell you.

Not much help, sorry...but I can email him and ask. I know you’ve bought from him before.

Good luck!!

SPAMBot - Horse Doctor > CaptDale - is secretly British
09/10/2018 at 20:54

Is it all stock or did it have an aggressive cam installed at some point?

DipodomysDeserti > CaptDale - is secretly British
09/10/2018 at 20:56

There’s your culprit. The PO probably let old oil sit in it, collecting water. The water and the acids it can form will slowly eat cast iron parts.

Spamfeller Loves Nazi Clicks > Chariotoflove
09/10/2018 at 21:56

Typical GM kwality.

This is a VERY common problem on these.

Chariotoflove > Spamfeller Loves Nazi Clicks
09/10/2018 at 23:01

Did not know that.

pip bip - choose Corrour > CaptDale - is secretly British
09/11/2018 at 07:26

no surprise

CaptDale - is secretly British > SPAMBot - Horse Doctor
09/11/2018 at 11:09

Did you not hear my cam on our drive? XD

CaptDale - is secretly British > AMGtech - now with more recalls!
09/11/2018 at 11:10

Cam is a CompCams unknown on the lifters

SPAMBot - Horse Doctor > CaptDale - is secretly British
09/11/2018 at 11:18

Yeah, I’m pretty sure I mentioned it to David haha

CaptDale - is secretly British > SPAMBot - Horse Doctor
09/11/2018 at 11:53

Lol, yeah. It is a lot more aggressive than I thought

SPAMBot - Horse Doctor > CaptDale - is secretly British
09/11/2018 at 12:19

Now you just need aggressive everything else haha

CaptDale - is secretly British > SPAMBot - Horse Doctor
09/11/2018 at 12:20

Like an aggressive paying job

SPAMBot - Horse Doctor > CaptDale - is secretly British
09/11/2018 at 12:23

That would be nice!!!

CaptDale - is secretly British > SPAMBot - Horse Doctor
09/11/2018 at 12:38

Yeah....

SPAMBot - Horse Doctor > CaptDale - is secretly British
09/11/2018 at 12:59

I need that too. I don’t really want to get into sales, but as an engineer, that is one of the few ways to make a shit ton of money. Plus, it would be good experience to have for when I start my own business.

MM54 > CaptDale - is secretly British
09/11/2018 at 14:58

Ouch, any idea how the bearings look? That’s a lot of metal to lose into the pan. Good that you caught it now though, rather than it going longer. Cams are case hardened, so once you start to wear into them, it gets worse fast.

AMGtech - now with more recalls! > CaptDale - is secretly British
09/11/2018 at 15:19

Interesting. And weird.

CaptDale - is secretly British > SPAMBot - Horse Doctor
09/11/2018 at 16:38

Let me know if you need a CFO XD

AkursedX > CaptDale - is secretly British
09/11/2018 at 17:40

So, how is this for coincidence? a friend of mine just sent me these photos from what he’s working on today:

Kinja'd!!!

CaptDale - is secretly British > AkursedX
09/11/2018 at 17:45

Are all his lifters not skirted like mine (and the one on the left of his image)? I am assuming the lifter on the right in his image is a comparison lifter? Please ask because this well tell me what I am suspect of happening

AkursedX > CaptDale - is secretly British
09/11/2018 at 18:01

He said all the other lifters looked like the one on the right. Was in a Corvette. He said it didn't have oil pressure one morning. The owner swapped the oil pump and when it restarted there was a loud tapping noise so they started tearing shit down and that's what they found.

Minglor86 > CaptDale - is secretly British
09/11/2018 at 18:14

I think it’s an issue generated by the aggressive intake lobes.

Comp themselves said that the LSK lobes are extremely hard on valvetrain and are not recomended for the street.

It is a Thunder Racing TRak cam

Minglor86 > AkursedX
09/11/2018 at 18:19

Old oil pump was seized imo with lifter bits.

New pump restored pressure but we were greeted by aggressive l ifter noise that was localized . Previously had the typical high lift lsx typewriter noise.

Pulled valve cover to reveal no preload on the pushrod with the flattened lifter

CaptDale - is secretly British > Minglor86
09/11/2018 at 18:30

Ah with mine having the open wheel without the skirt we are thinking the opening for the wheel went passed the oil galley and would momentarily drop oil pressure. And at extended high RPM would exaggerate the situation. Isn’t the first time we’ve seen that happen.

Minglor86 > Minglor86
09/11/2018 at 18:33

LSK intake, XER exhaust. 231/234 .643"/.598" 112+2 LSA

!!!error: Indecipherable SUB-paragraph formatting!!!

Minglor86 > CaptDale - is secretly British
09/11/2018 at 19:14

The rest of our cam lobes show wear like yours and same with the lifters

CaptDale - is secretly British > Minglor86
09/11/2018 at 19:18

Mine is an Xtreme Energy LSL

lobe# 13017 / 13018

duration (@.050): 227/231

lift (1.7) : .614 / .617

112+2

Wacko > CaptDale - is secretly British
09/12/2018 at 12:59

http://v12ls.com/

now you just need 55000$

then maybe just maybe we can get immoral to do it.

CaptDale - is secretly British > Wacko
09/12/2018 at 13:11

Lol yeah if I had an extra $55k I would be dropping in a LS9 and suspension and big brakes etc