Thread: 383 Oiling issue

Tweet

i would think it.s the end of the line were its part of the pan with no sump under the rods /mains would take longer to recover the oil for the oil pickup to get it . like number #1and #3 crank rod /oil hole drilled wrong will pass oil you did check this i think this was the first post on this were i said i hand a new crank that was like this never made it to the engine . the oil hole was not covered by the rod bearing shell you may want to check that . or see if number 1 pin and number 4 pin are drilled some crank s all pins are helps with bob weight but they may of drill threw the oiling for the rods

Originally Posted by pat mccarthy

i would think it.s the end of the line were its part of the pan with no sump under the rods /mains would take longer to recover the oil for the oil pickup to get it . like number #1and #3 crank rod /oil hole drilled wrong will pass oil you did check this i think this was the first post on this were i said i hand a new crank that was like this never made it to the engine . the oil hole was not covered by the rod bearing shell you may want to check that . or see if number 1 pin and number 4 pin are drilled some crank s all pins are helps with bob weight but they may of drill threw the oiling for the rods

Pat.. you hit the nail squarely... I took the engine apart today to send everything in to be checked again, and for the hell of it pulled out my rubber tipped blow gun and didnt have to go past the first journal.. I blocked off the other hole and blew air into it, and the air blew right out through the lightening hole in the end of the journal... Talk about feeling like an idiot... I would never have checked this if you hadnt posted it... THANK YOU!!!!! Time to get another crank ordered and get this thing OUT of my shop!!!!!

happy you found it sorry you lost a crank over it .hope you take and make yard art out of it or used i as a door stop .i would hate to see it getting in the hands of some poor s.o.b

Glad I suggested that in post #14-------------

yep well jerry some thing like that. back in his first post on this. not this new posting i did ask it long ago before post16 i think it may have been abit hard to under stand oiling groove in you post? . drill holes in crank pins . who cares who posted it ? it is that he found it i also said i did not think it was the dist hole as oil would of dump under the oil pump in the sump it would not run out of oil just low oil psi as the drain backs in the valley are in the rear as well if any made it to the lifter valley

Originally Posted by jerry clayton

In some of the aftermarket cranks the rod throws are bored out to lighten the assy---------if the oil groove from the main to the rod journal isn't in the correct place it can come out in that cavity---if its f'd in one its probably a total orgy in all four-however, that would return the oil to the pan almost instantly---------this engine combo you have is doing something with the oil------------

Yes you did, and I recall reading it and thinking... naw, I had the crank checked couldnt be.... right? RIGHT!!??!! At which point I set it aside... Goes to show that no matter how much you think you know your still just a teenager with parents that are idiots... they dont get smarter till your around 21 or 22.. then you realize how smart they really are. Thanks Jerry.. I should have paid more heed.

Your welcome---I was about to come to Richland to lend a hand-------------

Veddy intedddrestink. Glad you figured it out. Now, just screw an eye bolt or j-hook into the snout and hang it up and use it for a bell - - - should have a pretty nice clang to it if hung up.

Originally Posted by OldMech

Yes you did, and I recall reading it and thinking... naw, I had the crank checked couldnt be.... right? RIGHT!!??!! At which point I set it aside... Goes to show that no matter how much you think you know your still just a teenager with parents that are idiots... they dont get smarter till your around 21 or 22.. then you realize how smart they really are. Thanks Jerry.. I should have paid more heed.

ok so i did go back in your first post and it was post 18 just to check to see i did not lose all of my mind. i did asked you to check the crank for oiling holes but what the hell i shoot light up all oiling holes looks for burrs and blow air threw them should of found it then?????????

Originally Posted by Rrumbler

Veddy intedddrestink. Glad you figured it out. Now, just screw an eye bolt or j-hook into the snout and hang it up and use it for a bell - - - should have a pretty nice clang to it if hung up.

i wound never hang it would fall on me. that crank may not be done putting the hurt on ? i would dig a very deep hole in the back yard or better yet the neighbors

Glad you found it! I guess all my telepathic messages to check that weren't working either!!

Make a mailbox stand out of it.. or perhaps the base for a fence post??

And thanks for letting us know the results of the search, that was a good one!

Old Mech, can you post a picture or two of the offending machining just to for clarity? I understand what's being said, but the old adage, a picture's worth 1000 words might help all of us remember what to look for BEFORE getting to assembly problems in startup.

Originally Posted by pat mccarthy

ok so i did go back in your first post and it was post 18 just to check to see i did not lose all of my mind. i did asked you to check the crank for oiling holes but what the hell i shoot light up all oiling holes looks for burrs and blow air threw them should of found it then?????????

I dont usually shoot light through the holes. I have a brush and gun cleaning patches I run through all the journals until they are squeaky clean... Like so many things in life you do repetitively.. when you have done something a hundred times you become complacent.. then when you pay someone to magnaflux and check your crank it makes you more complacent... So, now I have a BIG KNOT on the top of my head from the attitude adjustment I just received....
I considered the bell thing... I doubt it would fall on me, but every time I turned around I would hit my head on it.. (adding another knot) I think it has hurt me enough... so I mentioned turning it into an end table... Wife said thats a GREAT idea.. as long as it never comes into MY house... so the chances are it will become WEIGHT in the scrap heap... then again.. it would look really sharp if I put some rods and pistons on it.. weld everything in place, put legs and a glass top on it.. THEN sneak it into the house... I dont THINK she can pick it up to throw it at me......

Originally Posted by OldMech

I dont usually shoot light through the holes. I have a brush and gun cleaning patches I run through all the journals until they are squeaky clean... Like so many things in life you do repetitively.. when you have done something a hundred times you become complacent.. then when you pay someone to magnaflux and check your crank it makes you more complacent... So, now I have a BIG KNOT on the top of my head from the attitude adjustment I just received....
I considered the bell thing... I doubt it would fall on me, but every time I turned around I would hit my head on it.. (adding another knot) I think it has hurt me enough... so I mentioned turning it into an end table... Wife said thats a GREAT idea.. as long as it never comes into MY house... so the chances are it will become WEIGHT in the scrap heap... then again.. it would look really sharp if I put some rods and pistons on it.. weld everything in place, put legs and a glass top on it.. THEN sneak it into the house... I dont THINK she can pick it up to throw it at me......

well the bad thing bout the photo is it will show the drill hole in the pin end it very well could been drilled to a much larger size hole when the guy balanced it .so he may only needed a few grams of more weight on the counter weigth and not adding more weight to the counter weight by putting a slug of heavy metal in it . like i do and many do to get the crank to come a round. i seen many cranks with 1and 4 drilled allways check them that there not busted threw when made .we never play with the crank pin hole when balancing them so they should be ok . the sbf ford like the 3.400 crank 5.400rod with the 8.200 deck as very big holes in the pin ends of the crank to get the bob weight up as it very short as there no room to swing a big counter weight with the short rod you have to use . many think the longer rod is need for moving the stroke on the crank for a better rod ratio but really it aids in balancing the crank as well. it can help if you spent a day drilling and pressing heavy metal in a crank all day the photo is a bbc.

Jerry Clayton sent this as an example, with the following explanation:
Here are 2 pics of the front of a crank (1957 392 hemi) so you can get the idea--the front and rear journals of most V8's have been drilled on the front and rear throw for years, but the later aftermarket stroker cranks are getting drilled not only front and rear, but on all 4 journals and with bigger holes which means an offset hole to clear the oil passage, and sometimes they mess it up.

'57 Crank 1 (1024x683).jpg

'57 Crank2 (1024x683).jpg

Originally Posted by rspears

Old Mech, can you post a picture or two of the offending machining just to for clarity? I understand what's being said, but the old adage, a picture's worth 1000 words might help all of us remember what to look for BEFORE getting to assembly problems in startup.

OldMech, can you perhaps post a picture of the crank we've been talking about, perhaps pointing to the offending hole and the problem you found?