Author Topic: My new stroker burning oil ***Engine pulled***  (Read 28471 times)

Offline Belgium Cuda

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Re: My new stroker burning oil ***tested without PCV***
« Reply #60 on: July 04, 2011 - 02:14:37 PM »
Finally got my leakdowntester and tried it. Removed the rockerarms to secure closed valves since I have the stock ones anyway. Leak was between 40-50%%  but I don't care so much for the numbers who can be strange for different reasons but I heard and smelled the leaks from the oildipstick and valvecovers. It really sucks big time to be forced to tare a new engine apart and propably loose the second season aswell. :banghead:
I will start with removing the intake manifold as proposed and then the heads but propably I will have to pull the engine at the end. :eek4:

Per
1970 Challenger Convertible - to become a Hemi tribute
1968 Charger R/T 500 cui stroker




Offline Chryco Psycho

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Re: My new stroker burning oil ***Leakdowntested***
« Reply #61 on: July 04, 2011 - 02:35:14 PM »
Uggg
I feel your pain :working:

Challenger - You`ll wish You Hadn`t

Offline Belgium Cuda

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Re: My new stroker burning oil ***Leakdowntested***
« Reply #62 on: July 04, 2011 - 03:21:07 PM »
Uggg
I feel your pain :working:

Thanks friend :cheers: Seen from a positive side I will have more time to work on the challenger instead of driving around in the charger and burning gasmoney. :smilielol:

Per
1970 Challenger Convertible - to become a Hemi tribute
1968 Charger R/T 500 cui stroker

Offline 72cudamaan

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Re: My new stroker burning oil ***Leakdowntested***
« Reply #63 on: July 04, 2011 - 05:58:09 PM »
Doesn't sound good.  Like a death " So sorry for your loss".
If I cant fix it, it's broke
 
Andy  (phukker whither)

Offline jimynick

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Re: My new stroker burning oil ***Leakdowntested***
« Reply #64 on: July 04, 2011 - 11:04:57 PM »
So, now you know! No more guessing, thank God! When you pull the engine, have a different machinist check it for bore taper and roundness and final size. Was the engine rebuilt using hone/deck plates initially? If not, you want to do it this time. Check the current rings carefully, too. Make sure that the rings were installed right sides up and the gaps staggered and sized properly. I'd suggest a moly ring with the appropriate hone crosshatch/sizing to prevent a re-occurance of the non sealing. Talk to your piston supplier for their recommendation on ring gaps/maker and type. Something was not done right here and you want to find it so you can avoid it again. Good luck laddie!  :swear:

Offline Belgium Cuda

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Re: My new stroker burning oil ***Leakdowntested***
« Reply #65 on: July 05, 2011 - 01:36:20 PM »
Pulled the intake manifold but didn't find any really signs of leaking into the heads but look at the valleypan, blowby or? Guess next step is to pull the engine. :eek4:
Believe more and more that the machineshop ignored my instructions and honed with 200 grit instead of the 400 I wanted them to use.

Per
1970 Challenger Convertible - to become a Hemi tribute
1968 Charger R/T 500 cui stroker

Offline dutch

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Re: My new stroker burning oil ***Leakdowntested***
« Reply #66 on: July 05, 2011 - 02:03:01 PM »
wow... looks like some serious pressure in there
*** Bart ***

Offline jimynick

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Re: My new stroker burning oil ***Leakdowntested***
« Reply #67 on: July 05, 2011 - 10:48:16 PM »
You're on the trail now! Take lots of photos, because if the machinist screwed up, they'll give you some ammo to shoot for a rebate. The valley cover was the weak link and took the hit. At the risk of sounding morbid, this is getting interesting. Keep us advised and good hunting! :thumbsup:

Offline AMXguy

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Re: My new stroker burning oil ***Leakdowntested***
« Reply #68 on: July 11, 2011 - 11:01:54 PM »
My totally rebuilt 440 smoked like a mexican deisel from day one, I went through everything and was about to give up and pull the engine but in one last act of desperation I put a new set of viton valve seals in place of those crap white teflon ones. cured it, now I use no oil and have no smoke whatsoever.

1970 R/T SE Challenger
 1970 Superbee
 1969 S code Mach 1
 1967  GTO

Offline Belgium Cuda

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Re: My new stroker burning oil ***Leakdowntested***
« Reply #69 on: July 16, 2011 - 08:33:10 AM »
Engine is out and I have pulled the heads so far. Cylinderwalls are very glazy and the "turningedges" om top are huge, your nail gets stucked on them. Just like it had 100K miles instead of 250. :clueless:
No scratches found so far but I doubt I will get the pistons out from the top.
Didn't found any particles in the oilpan which at least made me happy. :eek4:
Per
1970 Challenger Convertible - to become a Hemi tribute
1968 Charger R/T 500 cui stroker

Offline 72cudamaan

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Re: My new stroker burning oil ***Engine pulled***
« Reply #70 on: July 16, 2011 - 10:58:31 AM »
Was this engine freshly bored oversize? Or maybe the ridge you feel is just
carbon buildup? Try cleaning the ridge with a scothbrite pad and see if it comes off.
Any chance you used synthetic oil. If not, from the pictures it looks to me like the
machine shop did a pitiful job of honing! Synthetic oil would destroy the crosshatch pattern
 very quickly.
If I cant fix it, it's broke
 
Andy  (phukker whither)

Offline Chryco Psycho

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Re: My new stroker burning oil ***Engine pulled***
« Reply #71 on: July 16, 2011 - 08:41:30 PM »
if the pistons were fitted properly there would be no hint of as ridge at the top , the bore walls would still be crosshatched as well , they do not look crosshatched at all , maybe they just put new pistons in the old bores

Challenger - You`ll wish You Hadn`t

Offline Belgium Cuda

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Re: My new stroker burning oil ***Engine pulled***
« Reply #72 on: July 17, 2011 - 05:26:50 AM »
Neal, the pistons should have been fitted with the block at the shop. They honed the block after me giving them pistons and clearences needed, if theyfollowed the instructions is something else but as you can see it looked good when I assembled the pistons afterwards so the question is what could have created such a huge wear at such low mileage? oil that was used was Kendall 20-50 with comps breakin fluid. Will try to meassure the wear today.

Per
1970 Challenger Convertible - to become a Hemi tribute
1968 Charger R/T 500 cui stroker

Offline Aussie Challenger

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Re: My new stroker burning oil ***Engine pulled***
« Reply #73 on: July 17, 2011 - 08:05:06 AM »
From the pic's it looks like those bores have done many miles, no hint of cross hatch from honing, also can see marks on bore like the rings may have not been even gaped, ring marks like a chatter on the bore? take plenty of photos.
Dave

Offline Belgium Cuda

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Re: My new stroker burning oil ***Engine pulled***
« Reply #74 on: July 17, 2011 - 08:39:30 AM »
Pistons are out and looks like new, also no defects to see on the rings. Difficult to take good pics of the walls but no scratches to see. Bore diameterdifference between the ridge and under is 0.020" :eek4: Again, we are talking 250 miles on this engine. Another observation is that the play on the new timingchain is 0.9" but maybe that happens on all engines after startup?
My theori is that the machineshop didn't meassure correct and that's why they stated no fresh bore was needed but only a honejob, the rings has worked down the so called honejob to the blocks initial diameter. Can that be possible?

Per
1970 Challenger Convertible - to become a Hemi tribute
1968 Charger R/T 500 cui stroker