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#21
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you can always pull the distributer and manually prime the engine to see if any pressure comes up. if the drill starts pulling hard I would check against another gauge for pressure. would also check all the rocker arms to see if any have a bent/ missing pushrod.
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#22
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I would also check for a lifter that hopped out of place or a popped-out galley plug before I committed to pulling the whole engine.
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I could explain all this to the girl at the parts store, but she'd probably call the asylum. White '67 LeMans 407/TH350/Ford 3.89... RIP Red '67 LeMans. 407/TH400/Ford 3.25 |
#23
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Yes, yes, yes!
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If it does, drain the oil and look or snake a wire in the drain plug hole to see if the pickup fell off. Pumps are submerged but with the pickup off you get the bathtub (vortec) drain effect of the little tornado of air getting sucked in the pump. This will cause the oil pressure to fluctuate. #2 rod is end of the line as far as oil PRESSURE feeding the rods. BUT, with a complete sudden loss of oil flow...Rear main, #7 and #8 rods are the FIRST to do without oil. If the oil pump is working and the pickup is intact...I'ld be terribly tempted to overfill the crankcase with oil and fire the engine up. If all it is is a piece of trash stuck in the pressure relief valve, you could get lucky by reving the engine cold and shoving the valve open enough to let the trash wash out. Stuck open pressure relief will make oil pressure drop down. But that doesn't mean there's not any flow. Down enough for lifters to tick doesn't always mean the crank is being starved for oil. Just hate to see a one day job turn into a major event. And yes I do believe in miracles. Clay
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All the federales say,they could've had him any day They only let him slip away, out of kindness...I suppose Poncho & Lefty |
#24
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I agree with everything above, but for him , where he lives and with the cost of shipping even small parts , I would want to do this job only once and not have bearing(s) fail latter on .
This brings things full circle back to pulling the pan to check Bearings no?
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Wernher Von Braun warned before his retirement from NASA back in 1972, that the next world war would be against the ETs! And he was not talking about 1/8 or 1/4 mile ETs! 1) 1940s 100% silver 4 cup tea server set. Two dry rotted 14 x 10 Micky Thompson slicks. 1) un-mailed in gift coupon from a 1972 box of corn flakes. Two pairs of brown leather flip flops, never seen more then 2 mph. Education is what your left with once you forget things! |
#25
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You could say that because of where he lives, and the difficulty of tearing the motor apart, he should check all other possibilities first. If he could get by just by lifting the motor enough to drop the pan, he might not even need to drain the radiator.
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#26
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This
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Only time I've had a pressure relief valve hang open was coming back up the return road at the dragstrip. Heard the lifters clicking then saw the big zero on the guage. Everything was fine in that engine. Just had to repair the pump. It was still pushing oil through the engine. Just not enough to keep the lifters full. Next morning cold, the engine actually had a little oil pressure (lifters shut up) till oil started to heat up. Got my fingers crossed for Sam. Have lots of respect for the guy. Clay
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All the federales say,they could've had him any day They only let him slip away, out of kindness...I suppose Poncho & Lefty |
#27
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...is that the only Pontiac V8 in Qatar?
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#28
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90+ degrees outside. Did someone already ask what weight oil is in there?
How old/ How many miles since rebuild? Did someone already ask? It's not unusual for a well seasoned, 10w30 lubed, Pontiac engine to drop oil pressure in the 90+ degree heat. |
#29
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Last winter was also the first time I saw tabs sheared off the oil pump shaft with later investigation not finding anything in the oil pump. This won't be the problem this time since the owner mentioned that he was a little overzealous on the throttle with a cold engine and previous night time temps near freezing.
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Mick Batson 1967 original owner Tyro Blue/black top 4-speed HO GTO with all the original parts stored safely away -- 1965 2+2 survivor AC auto -- 1965 Catalina Safari Wagon in progress. |
#30
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Well, the UPS man is supposed to deliver today. Seems as good a time as any to ask a few things that have been bugging me:
1. Rear main cap. If I break this free I kill the crank seal, yes? And it sounds like a hell of a procedure for "rope" seal (which I think is all I will have materials on hand for). Check the others and if it looks good leave rear main? 2. With ARP fasteners are the torque values still as per the factory manual? Or are there different values for ARP (i.e. I'm figuring they might stretch less)? No, I don't have a bolt stretch gauge. I ordered a Summit baffled pan. It meant I didn't pay twice for shipping. At least one review said it is thicker metal than stock and it doesn't need painting. I just couldn't get past the idea that there could be sandblasting sand in nooks and crannies of my used pan that I wouldn't be able to clean out but that would float free in the oil. So I bit the bullet. BOP seal would have been nice but I have a pan gasket set (traditional) already and that would have been a separate shipment. Couldn't justify it. I really wanted to have the bearing shells in this order but it drove the price up and, heck, I'm hoping they are fine, right? So, if I do find trouble I will have to wait and order bearings then. A hand rotate to TDC shouldn't hurt at this point, right? Assuming it is hand rotatable. It will sure make it easier to fire up afterwards... Another option, since I'm not planning on taking the top apart, is to remove the distributor cap rather than the whole distributor. Then the timing arrangement should stay where it is on its own. Sam
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-- Sam Agnew Where you come from is gone; where you thought you were going to, weren't never there; and where you are ain't no good unless you can get away from it. Ministry - Jesus Built My Hotrod |
#31
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I suppose the last thing you have listed here is the first thing you should do!
If the car is a automatic then first unbolt the torque converter and slide it back towards the Trans. Next back off on the tension on all the belts. Next pull out all the spark plugs and see if and how well the motor spins over by means of putting a 15/16" socket on the Balancer bolt with a torque wrench and checking that the Crank breaks free and keeps spinning with less then 45 lbs being applied. If you see more then 45 lbs being needed your likely to need to get the Crank cut and you know where that all leads!
__________________
Wernher Von Braun warned before his retirement from NASA back in 1972, that the next world war would be against the ETs! And he was not talking about 1/8 or 1/4 mile ETs! 1) 1940s 100% silver 4 cup tea server set. Two dry rotted 14 x 10 Micky Thompson slicks. 1) un-mailed in gift coupon from a 1972 box of corn flakes. Two pairs of brown leather flip flops, never seen more then 2 mph. Education is what your left with once you forget things! |
#32
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Progress of a sort
__________________
-- Sam Agnew Where you come from is gone; where you thought you were going to, weren't never there; and where you are ain't no good unless you can get away from it. Ministry - Jesus Built My Hotrod |
#33
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Kudos to you bro .. making it happen on the other side of the world.
I still say we should take up a collection |
#34
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Sam ,Please tell us what you find before that new pan gets sealed back on!
__________________
Wernher Von Braun warned before his retirement from NASA back in 1972, that the next world war would be against the ETs! And he was not talking about 1/8 or 1/4 mile ETs! 1) 1940s 100% silver 4 cup tea server set. Two dry rotted 14 x 10 Micky Thompson slicks. 1) un-mailed in gift coupon from a 1972 box of corn flakes. Two pairs of brown leather flip flops, never seen more then 2 mph. Education is what your left with once you forget things! |
#35
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Getting closer to the moment of truth. I put the car in the air today, replaced the transmission mount in the truck (since I'll be hogging the big jack to hold up the Pontiac's gearbox for a while), also squared up the mounting bosses on the oil pump and flattened the bottom plate with my big file. I inspected everything inside but unlike some, mine was spotlessly clean inside with a nice film of oil so I didn't do anything else inside. My oil feed hole was also in nice shape. I'm not replacing the checkball with a smaller one or anything like that.
Sam
__________________
-- Sam Agnew Where you come from is gone; where you thought you were going to, weren't never there; and where you are ain't no good unless you can get away from it. Ministry - Jesus Built My Hotrod |
#36
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That's the new pump ground level that way out of the box?
__________________
Wernher Von Braun warned before his retirement from NASA back in 1972, that the next world war would be against the ETs! And he was not talking about 1/8 or 1/4 mile ETs! 1) 1940s 100% silver 4 cup tea server set. Two dry rotted 14 x 10 Micky Thompson slicks. 1) un-mailed in gift coupon from a 1972 box of corn flakes. Two pairs of brown leather flip flops, never seen more then 2 mph. Education is what your left with once you forget things! |
#37
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Quote:
Quote:
Have you checked to see if the hoist will roll under the car with the jack stands where they are?
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John Wallace - johnta1 Pontiac Power RULES !!! www.wallaceracing.com Winner of Top Class at Pontiac Nationals, 2004 Cordova Winner of Quick 16 At Ames 2004 Pontiac Tripower Nats KRE's MR-1 - 1st 5 second Pontiac block ever! "Every man has a right to his own opinion, but no man has a right to be wrong in his facts." "People demand freedom of speech to make up for the freedom of thought which they avoid." – Socrates |
#38
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I did not read, just looking , thanks!
Sam , also check the gear to top plate clearance, it should be .003", if not sand the pump body on some 280 grit wet ot dry paper lubed up with some soapy water. Also check the bottom and top of the gears for sharp edges
__________________
Wernher Von Braun warned before his retirement from NASA back in 1972, that the next world war would be against the ETs! And he was not talking about 1/8 or 1/4 mile ETs! 1) 1940s 100% silver 4 cup tea server set. Two dry rotted 14 x 10 Micky Thompson slicks. 1) un-mailed in gift coupon from a 1972 box of corn flakes. Two pairs of brown leather flip flops, never seen more then 2 mph. Education is what your left with once you forget things! |
#39
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In a figure 8 pattern to keep it even...
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Will Rivera '69 Firebird 400/461, 290+ E D-Ports, HR 230/236, 4l80E, 8.5 Rear, 3.55 gears ‘66 Lemans, 455, KRE D-Ports, TH350, 12 bolt 3.90 gears '64 LeMans 400/461, #16 Heads, HR 230/236, TKO600, 9inch Rear, 3.89 gears (Traded) '69 LeMans Vert, 350, #47 heads: Non-running project |
#40
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.002 will take substantial effort to remove by hand.
U may want to use a large Mill Bastard file to get thru the rough milling marks.
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Bull Nose Formula-461, 6x-4, Q-jet, HEI, TH400, 8.5 3.08, superslowjunk Last edited by Blued and Painted; 11-11-2017 at 11:22 AM. |
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