Author Topic: Carnage  (Read 6513 times)

May 24, 2010, 01:13:25 pm

burn_your_money

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Carnage
« on: May 24, 2010, 01:13:25 pm »
I pulled this motor apart yesterday and figured y'all would like to see what happens when a valve head decides to end it's relationship with the valve stem. This was an AAZ engine.







Tyler

Reply #1May 24, 2010, 01:48:33 pm

8v-of-fury

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Re: Carnage
« Reply #1 on: May 24, 2010, 01:48:33 pm »
shiza.

thats pretty intense, what makes this happen?

Reply #2May 24, 2010, 03:29:11 pm

Rabbit on Roids

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Re: Carnage
« Reply #2 on: May 24, 2010, 03:29:11 pm »
a bad injector is my guess. my grandpa has this happen to him all the time. he is on his fifth engine now. ive bought one engine that had a valve head sticking up sideways in the top of the piston.

Reply #3May 24, 2010, 04:12:43 pm

745 turbogreasel

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Re: Carnage
« Reply #3 on: May 24, 2010, 04:12:43 pm »
Or that valve hit something earlier in life, and was weakened.

Reply #4May 24, 2010, 06:38:07 pm

redneck_vdub

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Re: Carnage
« Reply #4 on: May 24, 2010, 06:38:07 pm »
This is exactly what happened to my ALH engine, dropped cyl. 4 intake valve.
'01 Golf TDI "The Redneck V-Dub"

360,000kms on the body; 17,000kms on the engine :D

EGR delete, 2.25" turbo back, air box mod, Giles injectors, VNT 17, ARP headstuds, 14LB flywheel, boost and EGT gauges.
Oo=w=oO

Reply #5May 24, 2010, 08:41:43 pm

Powered by Spearco

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Re: Carnage
« Reply #5 on: May 24, 2010, 08:41:43 pm »
Hey,  :D why don't you knock those pre-cups out of the head and get some pics and measurements and post them up.

Then sell them to me  ;) ;D.
'87 Syncro Transporter Single Cab "Now TDI"
'78 Rabbit..Gas Weekend Racer
'81 Caddy..Diesel 1.6/1.9 TD hybrid 275HP 349TQ "Retired"
'90 MultiVan, 2.5 Suby Swap, Porsche Brakes
'76 Scirocco TD dragster project
'13 Golf R:. Tuned
'98 Puch G320

Reply #6May 25, 2010, 09:58:58 am

lord_verminaard

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Re: Carnage
« Reply #6 on: May 25, 2010, 09:58:58 am »
Lol, the bore actually looked pretty good from those pics.

Brendan
81 Scirocco 'S -->Soon to be m-TDI
93 Corrado SLC VR6
'86 Golf N/A Diesel  -->Wife's car
1990 Audi CQ
05 New Beetle PD TDI


"I am a man, I can change... if I have to.... I guess....."

-Red Green

Reply #7May 25, 2010, 07:50:21 pm

burn_your_money

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Re: Carnage
« Reply #7 on: May 25, 2010, 07:50:21 pm »
Yeah it was a clean engine. I think the block is savable.

The precups all have cracks in them. I had thought of knocking them out.

I think the crank gear started to slip and this valve decided that the abuse from the piston warranted it the right to defect from a functioning society.
Tyler

Reply #8May 26, 2010, 07:39:03 am

subsonic

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Re: Carnage
« Reply #8 on: May 26, 2010, 07:39:03 am »
Lil JBWELD and that piston will be fine.  Run it. ;)
2009 Jetta TDI Loyal edition, 6-spd. 16V 2.0CR


1985 VW Golf 5-spd, 4-door, 1.6NA  Bought from orig. owner in Savannah with 42,000 miles.
"Making the jump NA to TD" slow but sure.

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