Zero oil pressure - But what is this?

BadBrad

BadBrad

2005 Pitbull
Vegas said:
Doing the job twice never saves anybody money. If that happened to me the crank would be shot, but you may have better luck.
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I wouldn't be counting on luck. If you ran that far without oil, I would sure check my bearings. I never heard anyone say, but how does a piece of valve guide travel to the oil pump? It seems like the piston would have bounced it around on the head and caused some problems there.:spank:
 
john sachs

john sachs

Well-Known Member
K-line seals are metal jacket.I would think it would be hard to break a piece that size off.It's kind of like sheet metal.
On the other hand,it could be a piece of the top of the valve guide.If the seal was off,a piece that size,could get past the valvespring,down the pushrod tube,through the large cut outs in the lifter block,into the cam chest to the scavange side of the pump,or jam the oil pump drive gear,causing it to shear the key.:angry:
Which key broke ?:confused:
John
 
ChopperJeff

ChopperJeff

Active Member
Apparently the gears on the motor side of the oil pump got jammed with the piece of metal, and the shear pin gave way. Good thing as that's what saves the oil pump from getting mangled. Hopefully I'll know all the gory details by the weekend as he would have had his machinist friend look at by then.
 
john sachs

john sachs

Well-Known Member
ChopperJeff said:
Apparently the gears on the motor side of the oil pump got jammed with the piece of metal, and the shear pin gave way. Good thing as that's what saves the oil pump from getting mangled. Hopefully I'll know all the gory details by the weekend as he would have had his machinist friend look at by then.
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CJ,
That's the scavange side of the pump(returns oil to the tank)..Your guy needs to see if the gear area is scored.If so,REPLACE the pump.
John:)
 
BadBrad

BadBrad

2005 Pitbull
John, I'm no certified mechanic but you must be on dope or dog food. How could a piece of valve guide that size go back up past the valve and through the spring? Even if the seal was missing, the guide is larger and could not possibly work its way back up past the valve. There may be a way for it to get back to the pump, but I"m not buying that. Maybe it could pop through the intake valve when it was open or something wierd like that and I have no idea where that would lead, but that's the kind of bullshit I could be swayed to believe. I've gone through having a valve break and when something breaks off and falls into the cylinder, it raises hell. Holes in the piston, plugs break off, everything gets beat to hell and back. Of course, all this is just my opinion and like assholes, everyhone has one and most of them stink.
 
BadBrad

BadBrad

2005 Pitbull
Oh yeah, one more question. If the seal is off, where did it go? I'm just trying to learn here. And I'm an A1 smartass!!!
 
112hp95ci

112hp95ci

New Member
I lost my engine last Dec. and I was only two miles from home when it started making a a sqeaking noise and went ahead and pulled the top-end off and the rear piston was scored. I pulled the cam cover off and there was fine metal shavings everywhere and it came from the rod bearings. Everything but the heads was f-----up, so I replaced the whole engine. If you found metal in the pump, I would definitely find out where it came from. All it takes is one little piece to f---- the whole motor. I just recently did a cam change in my new motor and discovered a shaft worked loose in a lifter (S&S) and was hitting on the lobe next to it, so don't take any chances.
 
MARV

MARV

Well-Known Member
BadBrad said:
John, I'm no certified mechanic but you must be on dope or dog food. How could a piece of valve guide that size go back up past the valve and through the spring? Even if the seal was missing, the guide is larger and could not possibly work its way back up past the valve. There may be a way for it to get back to the pump, but I"m not buying that. Maybe it could pop through the intake valve when it was open or something wierd like that and I have no idea where that would lead, but that's the kind of bullshit I could be swayed to believe. I've gone through having a valve break and when something breaks off and falls into the cylinder, it raises hell. Holes in the piston, plugs break off, everything gets beat to hell and back. Of course, all this is just my opinion and like assholes, everyhone has one and most of them stink.
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well yours definitely stinks!

if John says it can happen you'd be wiser to believe it.
 
BadBrad

BadBrad

2005 Pitbull
I'm one of those simple minded guys that needs a picture to explain shit. I'm no mechanic, that's why I joined this site. John, a picture would do me wonders to see what you're talking about. Like I said, I'm here to learn and have an open mind, but I just don't see what you're talking about. The valve guide is on the piston side of the head and is larger than the sleeve. So how does it get past the valve and through the spring?

Marv, no doubt my shit stinks! But I don't believe something just because someone says it's so. Not if I have a visual of something different. I question it and hope to get more knowledge by the answers I get. Just my way of learning.
 
seatmaker

seatmaker

Well-Known Member
Culprit of the TP Rocker boxes I bet, switch to the S&S, new valves and triple springs. (Just a Wild guess but hopefully a good one) 600 Cam all the way, and dump the E-Carb and restrictor plates if ya got em:2thumbs:
 
BadBrad

BadBrad

2005 Pitbull
I agree seat! The TP RB have already shown similar problems in the past. Not hitting square on the top of the valve, it causes eneven wear on the guide. Seems like it should have been a recall, but no such luck. What are restrictor plates?
 
MARV

MARV

Well-Known Member
brad,

john sachs has more S&S motor knowledge than ANYONE on this forum.

i'd say that deserves respect. unless of coarse you dont want his input when your in need.

dope or dog food dont fall into that category. IMO


[ame]http://www.youtube.com/watch?v=UpOBgvHmqf4[/ame]
 
V

V

Guru
05 with a E carb has ristricktor plates between the intake manifold and the cylinder head.
 
BadBrad

BadBrad

2005 Pitbull
Marv, I'm still new to the site and still learning the members. I want everyone's input!! I know that you're a respected member on this site as well, but until now, have never heard of John. I'll be a smartass till the day I die, so telling someone they must be on dope or dog food is just my way of saying I either disagree or don't understand. That shit won't ever change. Too damn old for that. Besides, if you don't have thick skin, you'll never stay on this site. It's all part of the fun and at the same time, part of learning. If you don't question (even those that are experts) you'll go along taking for granted what they say but really never know why.
John, no disrespect. Do you really know everything? JK While I got you cornered, what would cause an exhaust valve to break mid stem and fall into the cylinder? BDM nor S&S have been able to tell me that yet. This forum is the bomb!!!! You may not get the right answer or the answer you want to hear, but you'll always get something!
 
BadBrad

BadBrad

2005 Pitbull
What about an '05 with a super G? Does it have restrictor plates as well? Is this another name for a spacer?
 
Raywood

Raywood

The Pirate
Staff member
Calendar Participant
Troop Supporter
BadBrad said:
What about an '05 with a super G? Does it have restrictor plates as well? Is this another name for a spacer?
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05's didn't come stock with a G carb. It was an option though. Many here have pulled the E and replaced it with the G. I've kept mine but pulled the restrictor plates. This only happened in 05. I've posted lot of pictures here on the restrictor plates. Search them out if you want to know what they look like.

John Sachs is a mechanic and a racer. He's done a lot of members motors here.

:cheers:
 
BadBrad

BadBrad

2005 Pitbull
Dammit Marv!!!!!!!! I just saw the You Tube Video and you know damn well that's not me. I have brown chaps! Just ask my wife. :lol:
 
avdhunter

avdhunter

Active Member
BadBrad said:
John, I'm no certified mechanic but you must be on dope or dog food. How could a piece of valve guide that size go back up past the valve and through the spring? Even if the seal was missing, the guide is larger and could not possibly work its way back up past the valve. There may be a way for it to get back to the pump, but I"m not buying that. Maybe it could pop through the intake valve when it was open or something wierd like that and I have no idea where that would lead, but that's the kind of bullshit I could be swayed to believe. I've gone through having a valve break and when something breaks off and falls into the cylinder, it raises hell. Holes in the piston, plugs break off, everything gets beat to hell and back. Of course, all this is just my opinion and like assholes, everyhone has one and most of them stink.
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The valve guide is ALREADY above the valve. He is saying that a piece of the guide, sitting just under the spring, broke off and worked it's way up thru the spring and into the oil return path and onto the gears .......:spank::spank::loony::loony:
 
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