350-motor uses OIL but doesn't leak it

chevy86 · 06-15-2007, 07:10 AM

Until I get the motor rebuilt, is there an actual additive that helps stop excessive oil use - I think its the valve guide seals. When I first start it up a little blue smoke rumbles out the exhaust when throttling it up. For the next oil change which I haven't done just yet, I bought an larger oil filter (2-quart cap.) and 10-40 and a quart of Power Punch for lube purposes, what else might help keep things together until the rebuild commences? Would a thicker oil also help this?

thanks
Sam

mrjohnwayne · 06-15-2007, 09:34 AM

I've heard some good things about Lucas. Don't know if it will help stop the leaking. You sound right saying it is the valve seals. That is the most common cause of smoke at startup.

75K30 · 06-15-2007, 03:29 PM

The part that caught my attention, was the "smoke when throttling up".
Super hard on internal components if you are having to, or wanting to rev the engine up while it is cold. Cold components do not like that very much.
a slight increase in the weight of you oil may help some, but often just quiets noisy components down, and there is not too much out there that is going to fix leaks. Sure there are some conditioners that may help some rubber seals, but if it is a gasket, no miracles that I know of.
Take it easy on the old girl until you can gather the cash to get her re-built.

72'CaminoKid · 06-15-2007, 03:55 PM

could also be the rings. but i agree. just take it easy on her until you cna rebuild it

ddraszt · 06-15-2007, 10:17 PM

lucas makes a great oil additive also theres an additive called restore that works well or at least has for me on some smokin rings. SAE 30 seems to help a little keep that thicker vicosity. just a couple thoughts.

mech34us · 06-16-2007, 10:53 AM

I would us a 20-50 grade oil that is thick and use lucas or restore both very good products.

sport · 06-26-2007, 08:16 AM

i agree with using lucas.. mt neighbor swears by it

bradrhale · 06-26-2007, 02:23 PM

why not just replace the valve seals. afternoon project that is not difficult. stop by and pickup a valve spring compression tool and seals and valve cover gasket. just remember not to drop the valve or lose the locks that go around the valves.

Ford4x4Chik27 · 06-28-2007, 01:08 PM

Sounds like piston rings to me

scottie · 06-29-2007, 08:17 PM

i second brad with the valve seals

06-15-2007, 07:10 AM	#1
chevy86 Junior Member Join Date: Jun 2007 Posts: 5	350-motor uses OIL but doesn't leak it Until I get the motor rebuilt, is there an actual additive that helps stop excessive oil use - I think its the valve guide seals. When I first start it up a little blue smoke rumbles out the exhaust when throttling it up. For the next oil change which I haven't done just yet, I bought an larger oil filter (2-quart cap.) and 10-40 and a quart of Power Punch for lube purposes, what else might help keep things together until the rebuild commences? Would a thicker oil also help this? thanks Sam

06-15-2007, 09:34 AM	#2
mrjohnwayne Moderator Join Date: Apr 2005 Location: Texas Posts: 3,220	I've heard some good things about Lucas. Don't know if it will help stop the leaking. You sound right saying it is the valve seals. That is the most common cause of smoke at startup. __________________ John Wayne 2000 F-350 7.3L Powerstroke 4x4

06-15-2007, 03:55 PM	#4
72'CaminoKid Senior Member Join Date: Jun 2005 Posts: 2,329	could also be the rings. but i agree. just take it easy on her until you cna rebuild it __________________ 99 suburban xlt 96 silverado 91 wrangler (my baby ) 08 Honday shadow 750 (my mistress)

06-15-2007, 10:17 PM	#5
ddraszt Full Member Join Date: Jun 2007 Location: arlington wa Posts: 43	lucas makes a great oil additive also theres an additive called restore that works well or at least has for me on some smokin rings. SAE 30 seems to help a little keep that thicker vicosity. just a couple thoughts. __________________ "It is what it is"

06-16-2007, 10:53 AM	#6
mech34us Junior Member Join Date: Jun 2007 Location: TEXAS Posts: 2	Some Ideas I would us a 20-50 grade oil that is thick and use lucas or restore both very good products.

06-15-2007, 03:29 PM	#3
75K30 Senior Member Join Date: Jul 2006 Posts: 2,636	The part that caught my attention, was the "smoke when throttling up". Super hard on internal components if you are having to, or wanting to rev the engine up while it is cold. Cold components do not like that very much. a slight increase in the weight of you oil may help some, but often just quiets noisy components down, and there is not too much out there that is going to fix leaks. Sure there are some conditioners that may help some rubber seals, but if it is a gasket, no miracles that I know of. Take it easy on the old girl until you can gather the cash to get her re-built.

06-26-2007, 08:16 AM	#7
sport Full Member Join Date: Jun 2007 Posts: 40	i agree with using lucas.. mt neighbor swears by it

06-26-2007, 02:23 PM	#8
bradrhale Moderator Join Date: Apr 2006 Location: Texas Posts: 3,603	why not just replace the valve seals. afternoon project that is not difficult. stop by and pickup a valve spring compression tool and seals and valve cover gasket. just remember not to drop the valve or lose the locks that go around the valves.

06-28-2007, 01:08 PM	#9
Ford4x4Chik27 Senior Member Join Date: Sep 2004 Location: Sac-Town, Cali Posts: 1,585	Sounds like piston rings to me __________________ '93 Isuzu Amigo, Toyota Axles/Tcase/Drivelines, 35" MTR's '01 Pathfinder, making a huge effort to keep it stock, since it's my DD

06-29-2007, 08:17 PM	#10
scottie Senior Member Join Date: Jan 2006 Location: South Florida (Palm Beach), originally from south of BOSTON Posts: 644	i second brad with the valve seals __________________ im a straight shooter with upper management written all over me

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