Oil in my water

[Anonymous]

Help... I don't want to replace my 1964 170 because it runs just fantastic. However, I can only get about an hours worth of driving on 2 qts of oil. There isn't any water showing up in the oil just the other way around. I have had the head checked for cracks and have found nothing. It really would be a shame to swap it out because it runs so good. There must be something I am missing why this could be happening. I have not looked into issues related to the intake so if anyone knows of anything I should check it would be appreciated.

Thanks,

Joe

 

[Anonymous]

There are only 4 ways to get oil in water

1. Cracked Head
2. Cracked Block
3. Bad Head Gasket
4. Combination of any or all of the above.

Sorry
Bill

 

[Anonymous]

sorry for your luck but them are the only reasons why you can get oil in the water sorry bout that i agree i love these inlines they run like a top for ever well in your case almost forever sorry

 

[Anonymous]

Well, let's see.... I have checked the head out (and found nothing) I have removed and replace the gasket 3 times... I think I can rule that out. Now let me ask.... is there any type of oiling system built-in to the intake or under the carb? And my other question would be how could I tell if it is in the bock? (if it were cracked) Perhaps someone would have a drawing of how the oil flows in a 170?

Thanks again,

Joe

 

[Anonymous]

Hello,

I had the same problem!

Consider the following:

The head bolts over time suffer from enlongation through heat and pressure and bottom out in the head before the true tourqe is obtained when you tourque the head down.

Clean the head bolt holes, to make sure that there is nothing on the bottom of the holes, no fluids that would prevent the head bolt from bottoming out before true tourque is obtained. There is little clearence in these engines and if the head was surfaced there is even less clearence.

The work around is to add hardened washers under the headbolts to improve the clearence or buy new headbolts or buy studs and and put nuts on for headbolts.

Please let me know if this solves your problem.

Cobia

 

[Falcon62]

I have removed and replace the gasket 3 times

As Cobia pointed out what about the head bolts?

Now let me ask.... is there any type of oiling system built-in to the intake or under the carb?

Nope.

And my other question would be how could I tell if it is in the bock?

Unless the crack were blatantly obvious, about the only way would be to disassemble it and have it checked by an automotive machine shop.

Perhaps someone would have a drawing of how the oil flows in a 170?

I don't have one, but you might find one in a shop manual which can be purchased at almost any vendor for about $30.

 

[Hot 6t Falcon]

You asked for a picture.

Basically, the oil from the pump (near the oil Filter) pumps to the mains and the cam bearings and to the rear of the engine. There it travels up a passage past the oil pressure gauge sending unit to the top of the block. It passes through a small groove (see pix) in the head to the Driver's side rear head bolt, up into the head to the rear rocker arm shaft stancion and down the hollow rocker shaft to the rockers, down the pushrod holes and back into the pan.

The most likely place to get oil in the water (other than a crack) is a poor seal at the passage from the block into the head. The oil could pressure past the oil passage and into the water jacket. Reasons: Warped head. Too long of a bolt (do you use washers). Gunk in the bolt holes.

Another picture - this time the passage in the head. At the upper left is a water passage. The round hole to the right is a pushrod hole. The round hole in the passage is the headbolt hole

Good Luck

 

[addo]

I'd never thought about it before - but on a hot engine, the oil pressure is obviously still higher than the water pressure.

I've learned something!

 

[Anonymous]

Wow.... this is starting to sound like the problem. I had the head checked by the machine shop, had a valve job done and "milled" the head because they found slight warpage. (this was all three head gaskets ago) So as a result of or removing the heads several time, milling the head and possible water and debris down the bolt holes I'm betting this is why the head isn't sealing good. I am going to remove the head again, clean the holes out and get myself some hardened washers...... pray for me I will post my discovery once I get this done. If this doesn't work I have my eyes on a 200 that I may need further help with. Thanks everyone for your help.

Joe

 

[Anonymous]

Sad news guys.... it didn't work. About ready to give up. Looking at a 200 out of an 1980 Mercury.... this shoud fit ...right?

 

[gtm1086]

I was told long ago and have confirmed it myself on several ocassions. If you are getting water in your oil you have a bad head or head gasket. If you are getting water in your oil you have a bad block.

I know you have really looked over the head and related areas but you have to be missing something. Is the head gasket lining up correctly with the water passages. Are you sure the head bolts are not bottoming out.

You can pressure test the engine. There is a tester that replaces the radiator cap and allows you to pump in 15 to 20 psi. Then you look and listen. Another trick is to take off the belt to your water pump. With a cold engine and the radiator cap off start your motor and watch for a steady stream of bubbles in the radiator. If you see them then you have a bad head or gasket.
Just be careful that you don't run it to long as the water will boil after awhile
Gary

 

[Anonymous]

Looking at a 200 out of an 1980 Mercury.... this shoud fit ...right?

Just be sure it's not a Big Bell 200...they have the low mount starter and only work with C5's.

Don

 

[Anonymous]

I had the head checked by the machine shop, had a valve job done and "milled" the head because they found slight warpage. Joe

Joe,

After reading this post I wonder if you had this problem before you had the head milled? If not you may need to have the block decked to match your newly milled head. It's posible that they matched before and nolonger "nest" properly.