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10-28-2011, 06:02 PM
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Head Leaking Oil!!! Help Me Please :)
Hey guys my engines been going through oil so I bought a compression gauge and did a compression check. When I was doing the check I found an oil leak at the front of my passanger side head. What would you guys do? Im not sure if I just need to replace the head gasket or resurface the head or block....How would you go about fixing this? The compression check resaults were...
(1)170 (3)175 (5)170 (7)180 (2)170 (4)165 (6)180 (8)175 Thanks for your help Shayne Last edited by GUITAR1989; 10-28-2011 at 06:21 PM. 
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10-28-2011, 06:15 PM
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Hey guys I did some more searching..Is it true that faulty head gaskets cant leak oil? This dude on another website says, "It is entirely impossible to have oil leaking out of the head gasket!" He says its leaky valve covers. I went out and looked at the my valve cover and it doesnt look like its leaking at all...
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10-28-2011, 06:35 PM
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clean
spray it down confirm it is head gasket if it is remove both heads and have them checked for warp and cracks
did this motor run hot
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10-28-2011, 06:41 PM
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block
check block block face for cracks around jackets
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10-28-2011, 06:44 PM
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It usually runs at 180 give or take a few degrees but I had to drain the coolant one time and when I refilled it it was low so it got up to 200-210 for a sec then i added more antifreeze and water to bring it back to 180. How hot can a sbc 350 get before damage occours?
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10-28-2011, 06:46 PM
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pic
i just looked at your pic check fuel pump gasket also clean everything then start and idle to see if fan is throwing oil elsewhere or valve cover leak
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10-28-2011, 06:49 PM
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temp
240 but has to stay there the older motors r tough its not cast iron and aluminum heads
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10-28-2011, 06:52 PM
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Ok Ill go do that its getting dark though so I might not get back to you with resaults till tomarrow.
thanks for your help by the way man
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10-28-2011, 06:52 PM
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Quote:
You said it doesn't look like the V-cover's leaking, but what I think I see is an oil slick all the way down the front of the head, puddling atop the fuel pump. Back a few months ago, you were talking about removing the v-covers and not having to replace the gaskets- did you do this?? Clean the area real good and reinspect after a drive. It could also be leaking from the fuel pump area, it also could be the front pan seal, the side rails of the oil pan, the front timing cover seal. But my money's on the v-cover gasket. Have you tried snugging the v-cover bolts? Don't overtighten, this will only make things worse.
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10-28-2011, 07:02 PM
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oil leak
look at pic the wiring harness is not wet but head is wet high towards valve cover but if fuel pump is leaking fan may be lifting oil elsewhere i did have a cracked 307 block face years ago and leaked down back of motor into starter i drove it for years the leak was not bad a quart and half per oil change found it when my son striped spark plug and i pulled head
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10-28-2011, 07:04 PM
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I never ended up taking the valve covers off. I still have the gasket set laying around
 I just didnt think its the valve cover leaking because the grime on the head around the cover is all dry caked on stuff. The oil around the head gasket is nice new liquid oil so I figured the leak was coming from there. Ill clean the engine off tomarrow and take it for a drive. Honestly I hope its just the valve cover gasket since I allready have a set of gaskets here
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10-28-2011, 07:17 PM
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Quote:
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10-29-2011, 01:45 AM
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Yeah since my truck was going through oil and theres not ever oil stains under the truck I figured it was burning it. Its actually just leaking down to my crossmember and puddling up on there. Since I thought my engine was burning oil I was saving up $$$ for a rebuild or replacement. Now I have some money to buy something cool
 I washed the engine with some simple green and took my truck out to grab some dinner. There wasnt any obvoius leaks but Im gonna cruise around more tomarrow and hopefully the leak reveals itself.
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10-29-2011, 06:05 AM
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I fully agree with Cobalt. Your leak looks to be coming from the top end of the engine. Of all the sbc`s I`ve worked on, and other engines in general and rebuilt engines I`ve did I`ve never seen one leak oil at the head gasket but I`ve seen way more than my share leak oil at the valve cover gaskets on the old school parimeter bolt valve covers.
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10-29-2011, 08:46 AM
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Make sure its not coming out of the intake where it meets the block. This is very common. Clean it real good and watch it while it is running.
__________________
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