Do physics apply? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

71GMCer · 06-16-2010, 10:32 PM

I just did the intake manifold gasket and Distributor gasket and also plugged the oil pressure sending unit because it was all leaking (according to my mechanic)

It still leaks! So im just wondering if phyiscs apply here? Will it continue to drip until the thick sludge on the sides of the motor and tranny are all "dripped" off? Or is my mechanic just saying that to cover his rear?

Im quite curious because i know the rule is that when things heat up that they become liquified if there a solid, then to a gas, so will the old caked on oil and grease eventually drip away or should i plan on buying oil (again)?

I also did the oil pan and rear main seal so there is nowhere i can think it could be leaking from?

Matt

vectorit · 06-16-2010, 10:45 PM

All that work and you didn't replace the valve cover gaskets?

Yes, if your engine is very dirty and oil soaked it will continue to drip until it's either cleaned off or dried up.

I suggest pressure washing the whole engine, engine bay, and under carriage. Once you have a cleaner engine, future leaks or a mysterious one will be easier to find and fix.

71GMCer · 06-16-2010, 11:01 PM

yes i did

sorry forgot to mention that! Got custom valve covers on

tim21391 · 06-17-2010, 04:44 AM

u mind showin us some pics that may help

cdowns · 06-17-2010, 04:50 AM

what applies is sound mechanical principiles. did you read a service manual? it's chock full. especially about the proper way to setup a PCV system is an interesting topic to aid in pressure management inside an engine

dwcsr · 06-17-2010, 06:18 AM

get some engine cleaner and spray it down and wash all the old crud off. If it still leaks them its your mechanic. It cold still be leaking from any of the repairs, wash it down and check it for leaks. Ecessive blow by will force oil out the seals no matter how new they are, so it may be that.

71tahoe · 06-17-2010, 10:23 AM

If the intake valley was sealed using gaskets, get a new mechanic. They will almost certainly leak from the get-go. I've had the best luck applying a bead of silicone and letting it fully cure before cranking it up.

Ackattack · 06-17-2010, 10:35 AM

Quote:

Originally Posted by 71tahoe

If the intake valley was sealed using gaskets, get a new mechanic. They will almost certainly leak from the get-go. I've had the best luck applying a bead of silicone and letting it fully cure before cranking it up.

x2

71GMCer · 06-17-2010, 11:12 AM

alright well im gonna clean it up this weekend....im always so nervous though about spraying water where it shouldnt be....so how "careful" do i need to be? I know obviuosly not to stick the nozzel in the carb or alternator or dizzy but how much water can get on those?

dwcsr · 06-17-2010, 10:06 PM

The motor should be water tight as well as oil tight so spray where you need to. with the air cleaner on you can spray the carb as well. If you have HEI you shouldn't have a problem just don't soak it

trusty72 · 06-17-2010, 10:43 PM

x3 on the gaskets. dont spray the carb or dist.

06-16-2010, 10:32 PM	#1
71GMCer Registered User Join Date: Apr 2010 Location: Kelowna, Canada Posts: 116	Do physics apply? I just did the intake manifold gasket and Distributor gasket and also plugged the oil pressure sending unit because it was all leaking (according to my mechanic) It still leaks! So im just wondering if phyiscs apply here? Will it continue to drip until the thick sludge on the sides of the motor and tranny are all "dripped" off? Or is my mechanic just saying that to cover his rear? Im quite curious because i know the rule is that when things heat up that they become liquified if there a solid, then to a gas, so will the old caked on oil and grease eventually drip away or should i plan on buying oil (again)? I also did the oil pan and rear main seal so there is nowhere i can think it could be leaking from? Matt __________________ 1970 GMC 1/2 Ton 4x4 350sbc SM465 NP205

06-16-2010, 10:45 PM	#2
vectorit What? Join Date: Jun 2007 Location: Southern California Posts: 7,617	Re: Do physics apply? All that work and you didn't replace the valve cover gaskets? Yes, if your engine is very dirty and oil soaked it will continue to drip until it's either cleaned off or dried up. I suggest pressure washing the whole engine, engine bay, and under carriage. Once you have a cleaner engine, future leaks or a mysterious one will be easier to find and fix. __________________ Chris 1968 K20 Suburban 1972 K10 LWB PU

06-16-2010, 11:01 PM	#3
71GMCer Registered User Join Date: Apr 2010 Location: Kelowna, Canada Posts: 116	Re: Do physics apply? yes i did sorry forgot to mention that! Got custom valve covers on __________________ 1970 GMC 1/2 Ton 4x4 350sbc SM465 NP205

06-17-2010, 04:44 AM	#4
tim21391 Registered User Join Date: Jul 2007 Location: Salina, Kansas Posts: 1,998	Re: Do physics apply? u mind showin us some pics that may help __________________ 1972 C-10...402/400..flowmaster 40 series 1967 Mustang 347 stroker/C-4 1966 Mustang 289/3-speed 2013 Mustang V6/6speed w/300 ponies I may be 23, but i sure do knows 67-72s are sexy! Its not MPG its smiles per gallon! build started 11/25/08 build thread: http://67-72chevytrucks.com/vboard/s....php?p=2993796

06-17-2010, 04:50 AM	#5
cdowns Senior Member Join Date: Jan 2003 Location: daytonabeach Posts: 22,956	Re: Do physics apply? what applies is sound mechanical principiles. did you read a service manual? it's chock full. especially about the proper way to setup a PCV system is an interesting topic to aid in pressure management inside an engine __________________ 71c-10 350/2004r/4:11 lowered3/4 longbed/dead by hurricane MEANING OF DEATH::::: SOMEBODY ELSE GETS YOUR STUFF DONT BELIEVE EVERYTHING YOU THINK TAKE MY ADVISE;I DON'T USE IT ANYWAY

06-17-2010, 06:18 AM	#6
dwcsr Hollister Road Co. Join Date: Apr 2005 Location: Houston Posts: 6,134	Re: Do physics apply? get some engine cleaner and spray it down and wash all the old crud off. If it still leaks them its your mechanic. It cold still be leaking from any of the repairs, wash it down and check it for leaks. Ecessive blow by will force oil out the seals no matter how new they are, so it may be that.

06-17-2010, 10:23 AM	#7
71tahoe Registered User Join Date: May 2006 Location: Jonesboro, AR Posts: 916	Re: Do physics apply? If the intake valley was sealed using gaskets, get a new mechanic. They will almost certainly leak from the get-go. I've had the best luck applying a bead of silicone and letting it fully cure before cranking it up.

06-17-2010, 11:12 AM	#9
71GMCer Registered User Join Date: Apr 2010 Location: Kelowna, Canada Posts: 116	Re: Do physics apply? alright well im gonna clean it up this weekend....im always so nervous though about spraying water where it shouldnt be....so how "careful" do i need to be? I know obviuosly not to stick the nozzel in the carb or alternator or dizzy but how much water can get on those? __________________ 1970 GMC 1/2 Ton 4x4 350sbc SM465 NP205

06-17-2010, 10:06 PM	#10
dwcsr Hollister Road Co. Join Date: Apr 2005 Location: Houston Posts: 6,134	Re: Do physics apply? The motor should be water tight as well as oil tight so spray where you need to. with the air cleaner on you can spray the carb as well. If you have HEI you shouldn't have a problem just don't soak it

06-17-2010, 10:43 PM	#11
trusty72 Registered User Join Date: May 2010 Location: ft smith arkansas Posts: 131	Re: Do physics apply? x3 on the gaskets. dont spray the carb or dist. __________________ 1972 super cheyenne 1970 Suburb



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