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Flatheads: 4 - 6 - 8 - 12 bangers! Flattie Talk - Q&A! Dude... that's a funny lookin' engine!

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  #11  
Old 01-25-2018, 07:35 PM
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Default Yeah that's what I'm thinking....

This thing runs so nice, it's almost too good to be true.... never owned a flathead before and it is sure is not a race car... but surprisingly it move pretty good... I'll get that manual gauge hooked up as soon as it's a bit warmer... there is so much "info" on these engines and so much of it is conflicting...one says normal is 20 to 60 idle and road, then another has it just as you state...so manual gauge is surely in order...
Even the darn clock works in this thing...lol...
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Old 01-25-2018, 07:39 PM
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Default Skip, bruno , Bama

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Welcome back!
I agree with Bama. A known good mechanical gauge is step one.

I ran a 400 Ford for decades with super low oil pressure. Never got around to changing the sender.
Thanks for the thoughts.... I'll try very hard not to disappear again.... besides, I don't want to deal with that stuff again.... too old for drama....
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Old 01-25-2018, 09:25 PM
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Default OI.... it looks almost new but.

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Originally Posted by Old Iron View Post
Make sure the sender is the correct one for the flathead.
can't find a number on it and it looks like the one they show on Ford Barn...but apparently there is two.... one for a 80lb gauge and one for 60lb gauge...so Lord knows if this is the right one...or even how old it is...
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Old 01-27-2018, 12:58 AM
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Didn't see this post or I would have put in my 2 cents earlier.
The only thing that you will get Flathead owners to agree on is that they own a flathead...
I have had many Flatheads and have never had a stock one run 60lbs oil pressure. Many of them seem to be at or near zero when idling and around 35lbs at speed.
They are a low pressure system and even with a filter they don't filter all that much of the oil unless the block has been modified to a full flow system.
As others have said I would check it with a mechanical gauge first. Plus if you have been driving it and it is running fine I think that is a good indicator as well.
Do you know if the engine was rebuilt. With the issues with the head bolts I am wondering if your oil pump is still bolted in fully. I have heard of more then one guy finding a oil pump bolt in the bottom of his pan after a rebuild.
Does that oil pan have the large drain hole and is it a front or rear sump?
Torchie

p.s. You may want to recheck your head bolt for torque. Sometimes they have to go thru 2-3 cool -hot-cool cycles before they stop needing to be retorqued.
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Old 01-29-2018, 07:36 PM
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Default Yep... all of the below listed I've thought of ....

[QUOTE=Torchie;
The only thing that you will get Flathead owners to agree on is that they own a flathead...
You are surely correct on that..!! lol

Many of them seem to be at or near zero when idling and around 35lbs at speed. Just about what the gauge reads hot...

As others have said I would check it with a mechanical gauge first. Plus if you have been driving it and it is running fine I think that is a good indicator as well.
I will do that asap when the weather breaks....

Do you know if the engine was rebuilt.
It definitely had head gaskets replace before...they were felpro....as for a rebuild from the looks of everything else I'd say no....

With the issues with the head bolts I am wondering if your oil pump is still bolted in fully.

It had been sitting for a number of years....

Does that oil pan have the large drain hole and is it a front or rear sump?
Torchie the drain plug is huge and it's rear sump...

After driving it about for about a week, I re torqued the heads and will do it again after I get it fired up after hibernation....

I appreciate your 2 cents and feel free to throw in more if you think about it ...
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Old 01-29-2018, 08:07 PM
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Sarge.
The good thing about the large drain on that pan is that if it is up in the air when you drain the oil you can shine a light up into that drain and see things. Like a possible missing oil pump bolt.
Keep us posted.
Torchie
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  #17  
Old 01-29-2018, 10:06 PM
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Default That I will Torchie...

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Sarge.
The good thing about the large drain on that pan is that if it is up in the air when you drain the oil you can shine a light up into that drain and see things. Like a possible missing oil pump bolt.
Keep us posted.
Torchie
Hopefully I'll have done a bit more work on the other projects by spring... knees still got the best of me right now... working with another Orthopedic Dr. so I'm hoping for some actual results... short of new knees that is....
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Old 03-07-2018, 09:34 AM
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Hopefully I'll have done a bit more work on the other projects by spring... knees still got the best of me right now... working with another Orthopedic Dr. so I'm hoping for some actual results... short of new knees that is....
Here is another couple of pennys..the truck flatties are built a lot more heavy duty , when ever I was looking for one a truck one would be on top of list . it'll run on 3 lbs and sound like 60 , so if it is running strong enjoy it , don't mess with it , and fix the situation like we do our parts getters ... a piece of black tape will fix that gauge just fine, just saying ...
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  #19  
Old 03-07-2018, 10:13 PM
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Default I'll take your advise OddRod

I'm sure you all know what I mean when I say Ain't never satisfied.... always trying to make something better.... hard habit to break but I'm going to resist the temptation to fiddle with things.... When I get her out this spring I'll throw a gauge on it see what it really is putting out.... then go from there.. don't want to wake her up too soon...
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  #20  
Old 05-07-2018, 06:47 PM
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Default I know it took a while.....

Finally got that Mechanical Gauge on the 53.... has 20 at idle, 40 on road and ... all of those are engine warmed up... so I should be good...
Somebody said something about 0-60 gauge senders and 0-80 gauge senders... so maybe that is the problem with the dash gauge... but in any event, the oil pressure seems fine....Dash gauge is near 0 at idle and never goes over half way between the middle and the first hash mark... so I'd say it was about 20 lbs shy of accurate....
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