Oil leak

[John1027 8]

Can anyone help me out. I have a very small oil leak from one of the head bolts. It’s the only spot it leaks. It is coming from the head bolt right behind where the oil shows in the picture. Thank you in advance. 

[lynnmor 7,823]

There shouldn't be oil supplied to that area.  Clean it up with spray parts cleaner and observe to see if it indeed comes out from the head bolt.  If that is what you find, then pull the head to see if there is a bad head gasket or a crack in the cylinder or some other issue.

[John1027 8]

Thank you 

[The Tuul Crib 7,339]

I agree there should not be any 

leakage above this point. Does the engine 

smoke?

[John1027 8]

On 12/10/2019 at 7:08 PM, The Tool Crib said:

I agree there should not be any 

leakage above this point. Does the engine 

smoke?  
 

the only time I get a small amount of smoke is if I quickly bring it up to full throttle. I’ll get one small puff and that’s it. 

[ebinmaine 72,710]

What type of machine and engine is this?

[The Tuul Crib 7,339]

By the looks of your pic there is 

a sending unit in that area.Maybe that

could be the  source of your leak.

[953 nut 60,069]

As  others have said, no oil lines to the head. Clean the oil off and see if it returns first. A blown head gasket will sometimes leave an oil mark, but you would be feeling compression loss and smoke at that point.

[lynnmor 7,823]

2 hours ago, The Tool Crib said:

By the looks of your pic there is 

a sending unit in that area.Maybe that

could be the  source of your leak.

That sending unit is a temperature sensor screwed into a blind hole.