Well it looks like I flattened the camshaft in my Blazer's motor with my mods from last year. So the motor is coming out, getting cleaned up...and getting a roller cam. 
CK5
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Pulling the Motor
- Thread starter Craig Artzner
- Start date
I would go with a one piece rear main seal block instead, but that is just me.
Martin
Martin
didn't you put new heads on a existing short block?Well it looks like I flattened the camshaft in my Blazer's motor with my mods from last year. So the motor is coming out, getting cleaned up...and getting a roller cam.
I still think a flat tappet needs the zinc additive to live, regardless of mileage.
yep. that's what I did.
any other abnormalities from the swap, like oil consumption?
I put new Vortec heads on a 100K shortblock with no noticeable increase in oil consumption....that is something some say will happen under those circumstances.
The only switch I had to make to the valve train was pushrods and rocker arms (self aligning type)
I put new Vortec heads on a 100K shortblock with no noticeable increase in oil consumption....that is something some say will happen under those circumstances.
The only switch I had to make to the valve train was pushrods and rocker arms (self aligning type)
nope it ran good until a month or so ago when it started losing power. then it wouldn't start one day, checked everything out. checked the timing and had fuel, spark, and air. popped the valve covers off and a few of the rockers were barely moving while cranking. not enough of anything was getting into the combustion chamber apparently. bleh.
y5mgisi
1 ton status
I like you Craig. Your crazy, but i like you.
How many miles after the change? This just sounds weird. Most of the time when you wipe a lobe or two, or damage your camshaft..........
It happens fairly quickly.
It sounds like yours ran fine for quite a while and then started going downhill. Its not unusual for the downhill slide to progress quickly, once the cam starts to break down, it goes fast.
But usually once you get a good chunk of miles on it, its good for the long haul.
It happens fairly quickly.
It sounds like yours ran fine for quite a while and then started going downhill. Its not unusual for the downhill slide to progress quickly, once the cam starts to break down, it goes fast.
But usually once you get a good chunk of miles on it, its good for the long haul.
79rustyk10
3/4 ton status
Didnt you put aftermarket heads on?
I wonder if the spring pressure was too much for the cam.
I wouldnt gamble with a flat tappet cam anymore, too risky havng a 50/50 shot of your engine surviving or not.
I wonder if the spring pressure was too much for the cam.
I wouldnt gamble with a flat tappet cam anymore, too risky havng a 50/50 shot of your engine surviving or not.
yep definitely going full roller. I'm excited now. I think I'm going to pull the tranny too and put a new seal kit in it (it has some weeping leaks).
and yes I did put the new heads on it and maybe that's what caused the issues
and yes I did put the new heads on it and maybe that's what caused the issues
Have you looked into going with a one piece rear main seal block?
Martin
Martin
scottsdale86
1/2 ton status
Why replace the whole block when a cam swap and gasket change is all that is needed to get it running properly.
Because he is looking to go roller cam. The one piece rear main seal engines are roller blocks, and the one piece rear main seal isn't nearly as prone to leaking oil.
Martin
Martin
I'd also very, very highly suggest you take the whole engine apart and clean every single oil passage, bearing etc. All that glitter that used to be your cam lobes cannot be good for your bearings... I wouldn't trust the oil filter to get it all, plenty gets sloshed around by the crankshaft so it'll be everywhere.
I've done way to many rear main seal jobs to have much faith in either design, but a one piece rear main seal is a MUCH better design.
Martin
Martin
shaun89
1/2 ton status
my buddy just did that samething about 2 months ago,it randomly wiped a lobe,so he did a full roller set up,with roller rockers. replacing his crank/rod bearings while he was at it.didnt even take the motor out,he just took each cap off individually and i guess theres a trick to just sliding new bearings in. works great now 
y5mgisi
1 ton status
Offtopic...but I had to say it... Theres a effing dart in your neck!
Yea, if I remember right it actually goes " your crazy, I like you but your crazy. I'm tiered"
Followed by,
Hello darkness my old friend...
