Impressive knowledge in this thread. I wish the MUD-clopedia was easier to search so when I need this in the future, I'd have it.
No oil to the valves- 2F HELP
- Thread starter John Staton
- Start date
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- Thread starter
- #22
Mystery Solved!!!! Removed the cylinder head and confirmed I had oil flow, so it had to be something to do with the channel that leads from the cylinder head to the rocker arm and it was. The bolt used to hold the cylinder head on has a smaller shaft before you get to the threads that hold it onto the block. The oil travels up the excess room in the shaft of one of these bolts (the one by the famous oil galley plug) and up to the rocker arm. Switched that bolt out to the correct one and we have flow. Interestingly enough if you look at the Oil Galley hole that everyone talks about, you can see it was drilled through that bolt shaft and over to the rocker arm specifically to give the oil a way to get to the rocker arm. I am sure the other bolts holding my cylinder head are wrong too, but it looks like this one is the only one that uses the extra space as a way to move oil in the engine. So the answer was WRONG BOLT. Got my Oil Galley plugged as well.
I had a bit of wear on my rocker arm from running it dry (maybe 1000 miles) and I shined that up. The channel that carries oil up and down the rocker arm was also gummed up, probably from running hot, but got that cleaned out as well. Other than that I dodged a bullet.
Should have it buttoned up with the new carb, header and exhaust and running smooth very soon. I need a break from spending money on this truck. I think I am at a stopping point for a while.....at least until I decide what to do about the transmission.
I had a bit of wear on my rocker arm from running it dry (maybe 1000 miles) and I shined that up. The channel that carries oil up and down the rocker arm was also gummed up, probably from running hot, but got that cleaned out as well. Other than that I dodged a bullet.
Should have it buttoned up with the new carb, header and exhaust and running smooth very soon. I need a break from spending money on this truck. I think I am at a stopping point for a while.....at least until I decide what to do about the transmission.
Glad you got it figured out!
hang on, as a professional lurker I feel like by now I would've heard that the head bolts aren't all the same on the 2f. Have I just gotten lucky 3x? I've even layed them all next to each other all cleaned up and haven't noticed a difference...how much smaller are we talking for this one bolt?
- Thread starter
- #25
If you are getting flow you have the right bolts...I am just talking about the smooth shaft before you get to the threads. I did not say they were different...I said they were different on my engine. Someone rebuilt my engine about 600 miles before I bought it...I suspect thats when the wrong bolts were used. It was actually a Toyota dealer in Arizona and when I bought the truck it came with a receipt for over $11,000 for the rebuiid...only to find out it was running dry up top. Who knows...maybe it was rebuilt because the bolts were wrong when they got it to rebuild. I am just glad I discovered the mistake before I burned something up.
NeverGiveUpYota
Dare me.
I’m thrown too cuz I know for a fact that @OSS would have informed me of this different head bolt when he helped me thru my top end this early fall.
So where’s the photos of the hollow or smaller head bolt? I need to see proof of this oddity.
- Thread starter
- #27
So I didn't do the work...just came in and went through how it was fixed. It is not a hollow bolt, rather the shaft on the bolt before you hit the thread is narrow enough that oil can travel up that bolt shaft. If you have your cover off and look at the oil galley that vein travels right through that bolt shaft and to the rocker arm. Has to be why that oil galley was drilled there in the first place.
It's not the head bolts - it's the bolts for the rocker towers.
NeverGiveUpYota
Dare me.
Thank you! Much more clear.
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I think the 3F FSM points out the location of the bolt w/ dimpled head. I don't think that little bit of info made it into the 2F FSM.
Earlier 2F doesn't have the 2 different bolts.
Earlier 2F doesn't have the 2 different bolts.
- Thread starter
- #32
I will clarify when I pick it up but it was not the rocker tower bolt we were talking about, although same concept. If you look at the angle of the oil galley plug you can see it was drilled to pass through one of the bolts that hold on top of the engine. The oil galley passes through that hole where a long bolt with threads just on the end hold the top of the engine to the bottom of the engine. It makes its way to the rocker tree where oil is forced up to the above reference bolt.
The oil originates down below and travels up beside the bolt that holds the top of the engine on to the bottom of the engine before making it to the oil galley and then to the rocker arm. That is how it was explained to me and makes perfect sense when the cover is off and you are looking at the passage as there is a hump at the angle of the oil galley hole to the rocker arm. Here is a pic I snagged off another oil galley post. Once my mechanic changed the bolt out with one that had a smaller diameter shaft I started getting great circulation of oil to the rocker arm. I am not very good at explaining or repeating as I am a neophyte when it comes to work on engines, but I am thrilled to have oil circulating up top.....and glad to have that oil galley plugged as well. Something I have been thinking about since I read about it a few months ago when I purchased the truck.
The oil originates down below and travels up beside the bolt that holds the top of the engine on to the bottom of the engine before making it to the oil galley and then to the rocker arm. That is how it was explained to me and makes perfect sense when the cover is off and you are looking at the passage as there is a hump at the angle of the oil galley hole to the rocker arm. Here is a pic I snagged off another oil galley post. Once my mechanic changed the bolt out with one that had a smaller diameter shaft I started getting great circulation of oil to the rocker arm. I am not very good at explaining or repeating as I am a neophyte when it comes to work on engines, but I am thrilled to have oil circulating up top.....and glad to have that oil galley plugged as well. Something I have been thinking about since I read about it a few months ago when I purchased the truck.
LAMBCRUSHER
SILVER Star
You are right except for the fact that that head bolt is not at all different. But it was a good save your ass story the mechanic gave you for finding the head gasket on bass ackwards. Where’s my beer?
gregnash
Anal Retentive Analyst
Right?!? This is what I am thinking. There is no different part numbers for the head bolts unless for some reason there is a difference between the 62 and 60 head bolts and the wrong one was inadvertently put in. When I ordered new head bolts, our are not TTY bolts so can be reused but wanted new anyways for piece of mind, from Onur I just got a bag of bolts with the part number.
But yes, @John Staton, you are correct in that the oil galley plug does go through and into that head bolt hole, hence when you are doing the galley plug on the truck (head not off) you should ALWAYS put a piece of paper with a ziptie down past the hole to catch any metal shavings from when the hole is being tapped.
NeverGiveUpYota
Dare me.
Yeah it still amazes me when folks decide to buy a 30 year old truck AND chose to have some garage do work for them. I wish I had bottomless pockets too. Granted I have had some very generous hand holding from various members so I can’t fully knock others who use a garage.
But to not really understand this stuff and then try to convey the info to a third party OR trust the third party knows what they’re doing.... yikes.
It’s almost as bad as putting yourself in your doctors hands. Being our own advocate is of utmost importance nowadays.
But to not really understand this stuff and then try to convey the info to a third party OR trust the third party knows what they’re doing.... yikes.
It’s almost as bad as putting yourself in your doctors hands. Being our own advocate is of utmost importance nowadays.
LAMBCRUSHER
SILVER Star
^trVth
- Thread starter
- #37
so not bottomless, but enough to have a hobby. So you think I got bad info...What is the pathway from the bottom of the engine to the top and over to the rocker arm. Never had it explained to me on here and have not been able to find it in a diagram. Here to learn gents....I do know I was dry up top and now flowing and have complete trust in the mechanic I use. I guess that could be good enough for me, but am curious to hear about the pathway. Does oil travel up that path to make it to the oil galley and over to the rocker arm or not? If nothing else, I am at least glad I could amaze someone on here 
NeverGiveUpYota
Dare me.
From the oil filter follow the bold black arrows....
- Thread starter
- #39
I have seen that pic. My question was does it travel though the head bolt hole we are talking about and to the oil galley and then over to the rocker arm....cant really tell in that pic.
