Aight, this engine has been a pain in my ass for months now.


First of all, junkyard engine, stuck in new bearings, oil pump and ran it, very low oil pressure, checked everything out, installed a high volume pump, same problem.

Finally got around to tearing it down yesterday, it had bad cam bearings but the new mains and rods still looked ok, and it was getting no oil to the top side on the passenger side. Just heard back from the machine shop and there was nothing in the oil passages and it looked ok, so that leaves one thing, the distrbutor not sealing well in the oil galley and its blowing back into the sump.

I checked two other distributors I had, and a new one, same size as the one I had in there, and barely smaller than the block hole, which is correct since some has to leak by to oil the distributor gear. That still doesn't solve my problem though, why the hell am I not getting the oil I need there?

Would two badly worn cam bearings be enough to cause that? If so then why was the driver side of the engine getting plenty of oil up top?

I have built a lot of SBC's but I have never come across something like this before.

8/24/2007 2:07:54 PM

1. yeah, i've seen/heard of cam bearings causing a decent drop in pressure.

2. isn't the pcv on the passenger side? might be something to consider... otherwise, that's got me kinda stumped too if the galleys are clean. did you mic. the dizzy shaft compared to the new one? positive it's not slightly tweaked anywhere, etc.? how are you sure it's not getting oil up there? dry under the valve cover or what?

8/24/2007 3:12:56 PM

^ everything on that side was bone dry, lifters wouldnt even pump up, much less push it up the rods

other side was fine though, even with 5-7psi at idle warm

just doesnt make an damn sense, without any crack or obstructions, it has to be the shaft not sealing properly, but i was just on the phone with a gm performance rep for half an hour and pretty much ruled that out, so i guess it has to be the cam bearings, i'm gonna leave the intake and valve covers off when i get it back in, and prime it and check everything this time, with all this work, it should shoot oil halfway to the beach out of the rockers

8/24/2007 4:04:48 PM

Quote :

"First of all, junkyard engine"

and a chevy motor at that
good luck

8/24/2007 4:19:19 PM

^ somehow i knew you would post something stupid in here, shut the fuck up, no one gives a shit what you think

8/24/2007 4:37:50 PM

^ditto

8/24/2007 4:38:37 PM

if i would have posted that you would have done the same thing stupid,
ilove getting you ngs all worked up. its comical to me

8/24/2007 5:06:19 PM

8/24/2007 5:16:35 PM

Quote :

"ilove getting you ngs all worked up. its comical to me"

who said i'm all worked up, i just stated a fact, you dont know what the fuck you're talkin about on any topic, so your posting just contributes to more stupidity on this site

8/24/2007 6:59:20 PM

are you sure you can trust this oil pressure gauge? i've had problems with both factory and aftermarket oil pressure sending units (autometers have shitted out on me and so have GM's)

8/25/2007 2:48:23 AM

Quote :

"who said i'm all worked up, i just stated a fact, you dont know what the fuck you're talkin about on any topic, so your posting just contributes to more stupidity on this site "

anytime you are ready for me to get together and let me educate you on how a car runs let me know. i will help you....and your boyfriend Bigblueram...

for real. i will help you

8/25/2007 5:46:36 AM

Quote :

"are you sure you can trust this oil pressure gauge"

yeah first thing i checked, put a manual guage on there, it was obviously not getting any oil to the top end on one side


kinda makes sense now that i realize how bad the rear cam bearing was, even a high volume pump couldn't keep up with that, the main oil hole comes up on the drivers side, to all the lifters, then to the cam bearings, then to the passenger side, it was dumping too much out of the cam bearing to even get over there

besides a cam bearing walking out of place, i've never seen one dump enough oil from wear to do this

8/25/2007 10:44:19 AM

Quote :

"for real. i will help you "

hahahhahaha

8/25/2007 12:13:37 PM

^ no shit, i don't even want his opinion on shit, much less actually touching anything

8/25/2007 7:12:38 PM

You know what is upsettin i was at cook out with Brokeback one time with some biker ppl. only if i knew who he was GFD

8/25/2007 7:16:48 PM

slapped the cam and crank in tonight, waitin on dirty dan to get in town to borrow his piston ring compressor, left mine at the lake after i did the boat motor


got the block cleaned, decked, and honed pistons cleaned and checked, new rings, crankshaft, and camshaft, bearings, etc. ready to build the bottom end tomorrow

hopefully i'll have the heads back monday, finish building it, drop it in, and have it running by tuesday morning, along with all the other random shit we need to fix to get this truck to colorado on wednesday

8/25/2007 8:15:38 PM

^there's one (ring compressor) in my garage if you dare go dig through the clutter. i think my dad probably has one too.

8/25/2007 8:24:58 PM

If that falls through I have one somewhere

8/26/2007 5:48:04 PM

got the bottom end built this morning, like i had nothing else to do, and as soon as i get off work tomorrow and pick up the heads, hopefully finish it and never see it again

8/26/2007 5:49:57 PM

I don't know anything about engines, but there's a lot of gay slang in this thread it seems to me

8/27/2007 12:09:55 AM

yup, lots of fag smoking in here...

8/27/2007 1:16:41 AM

^buttsecx pics JBaz

8/27/2007 8:56:45 PM

yeah, you'd like that wouldn't you faggot?

Quote :

"slowretard96: i would beat all 3 of you off and have you skeet on my face"

8/27/2007 9:05:05 PM

what

the

fuck

8/27/2007 9:27:44 PM

yeah, that's not even an out of context quote. it's literally his whole post. check the uwharrie thread a little ways down.

8/27/2007 9:48:02 PM

started building it yesterday about 7pm, just got done with a test drive

8/28/2007 5:59:48 AM

work all night or just some last night and some this morning?

8/28/2007 7:22:04 AM

Quote :

"started building it yesterday about 7pm, just got done with a test drive "

figured that was self explanatory, 11 hours straight

8/28/2007 7:42:14 AM

Thats what I figured, hard to tell since I don't know anything other than its a 350.. Doesn't take very long on a lot of old cars that ive worked on

8/28/2007 7:50:38 AM

4.5 hrs of sleep. classes 10:15-5:45 then work. gonna love today it was satisfying to hear it run though. how did the test drive go?

8/28/2007 9:18:34 AM

so how does it run.. srsly

8/28/2007 11:39:38 AM

As much attention as Keith paid to ALL the details...it ought to run like a brand new one.

I get too lazy to mic my bores and gap rings and everything. Not him. He did it all.

8/28/2007 11:56:59 AM

it fired up on the first try and idled nicely. there is a sound coming from somewhere, but it's not the engine. we're thinking it's in the exhaust (cat's been gutted). other than that it runs great as far as i know, didn't go on the test drive, i crashed out hard.

8/28/2007 3:07:07 PM

is the inspection plate on it. mayhave broken or stripped teeth off the bendix or flywheel. just a thought

8/28/2007 3:28:27 PM

why would that cause a noise when it's running? damn you post some stupid shit.

8/28/2007 3:40:09 PM

well cause depending on the size of the chunk(if it is that) the flywheel will hit it sometimes during dif vibrations.

only thought of it cause i did the same thing with my old c10. took the plate down and well what do you know there was a peice of a flywheel. on thing is. it only made the noise at idle and taking left turns. i myself thought that it was some shit in the exhaust. but it wasnt.

8/28/2007 4:05:46 PM

broken teeth =/ chunks of the flywheel

8/28/2007 4:18:31 PM

broken teeth =

8/28/2007 4:22:37 PM

god damn slowback is a retard, it was the heat sheild on the cat


why the hell would it have broken teeth on the flywhell i just inspected and installed dumbass




its running great, has nasty sounding lope at idle with the new cam, and will sound better whenever he puts a good exhuast system on it

only problem today is that it was running a little hot, new thermostat was screwed up, opening at 220 instead of 190, other wise, it went perfect, sits right on 60 psi of oil pressure all the time, the relief pressure

8/28/2007 6:02:30 PM

Quote :

"we're thinking it's in the exhaust (cat's been gutted)"

i guess it wasnt "in" the exhaust

8/28/2007 6:09:03 PM

Quote :

"i guess it wasnt "in" the exhaust"

the sound was coming from the exhaust so it would be "in" the exhaust you fucktard. d a m n dude i try to give you a little bit of credit sometimes but it's obviously not warranted at all.

8/28/2007 6:12:39 PM

Jesus Christ.

^ & ^^^ I take it Joel found my "note" ?

[Edited on August 28, 2007 at 6:22 PM. Reason : Got. Dammit.]

8/28/2007 6:22:02 PM

ill i know is this nigglet wanted to know what a noise was. having had the same problem (noise close to in the or on the exhaust) i thought i would just put my 2cw in and i know it wasnt asked for. but i said it anyway. knowing you appently got frustrated the other day with your thread to make it get locked up, i decided to be on the helpful end of shit(i do it sometimes when) to help you. well glad you found your problem..
lets move on

8/28/2007 6:27:28 PM

lets keep pointing out what a dumbass you sound like every time you post.

8/28/2007 6:31:16 PM

^^

Quote :

"we're thinking it's in the exhaust"

unlike you, most people can identify the difference between a mechanical interference and a rattle, and anything in the bellhousing makes a very distinct noise, any idiot should be able to immediately identify it, but apparently not you

[Edited on August 28, 2007 at 6:38 PM. Reason : i had a rock in my tire one time making noise, i wonder if that could be it ]

8/28/2007 6:37:41 PM

Quote :

"unlike you, most people can identify the difference between a mechanical interference and a rattle, and anything in the bellhousing makes a very distinct noise, any idiot should be able to immediately identify it, but apparently not you "

is that why it was posted that "there is something rattling maybe in the exhaust" instead of automaticly identifying it and solving the problem as soon as you heard it.

8/28/2007 6:59:48 PM

whatever

[Edited on August 28, 2007 at 7:08 PM. Reason : im beating my head against a brick wall]

8/28/2007 7:02:48 PM

8/28/2007 7:11:28 PM

Quote :

"im beating my head against a brick wall "

Try a 5# hammer instead

8/28/2007 7:12:48 PM

Quote :

"is that why it was posted that "there is something rattling maybe in the exhaust" instead of automatically identifying it and solving the problem as soon as you heard it."

took a few minutes to find exactly what was rattling and wedge something in there, long after Jeepman went to bed but i knew from the sound what it was, but listened to the engine anyway in various places on the pan and block to see if there were any other unusual noises while i was under there, when all you can hear is the oil pump gears and bypass spraying back into the pan, no knocking or even clicking, that is a tight damn smooth running engine

8/28/2007 7:21:03 PM