oil with spark plugs don't mix

nu_supra04 · 09-25-2009, 07:56 AM

so i just recently bought a 1990 supra turbo with about 120500 miles on it, i plan to keep the body pretty much untouched unless for paint but I'm planning on definitely adding a a lot of power to. so i right now i got two questions, i recently read that getting a divorced downpipe adds hp so can anybody explain who that works??
also i was recently changing the spark plugs and as i took the old ones out some were covered in oil, any ideas to what is causing that?
any help appreciated thanks

oregonjoe · 09-25-2009, 04:47 PM

The 4 plugs on the NO3 Oil Cover are leaking - very common.

Its the black plate over the plugs.

They go right to the valves.

Put Oil plug washers on them and RTV

There is a geat sticky on this topic on the MKIII form

nu_supra04 · 09-25-2009, 06:46 PM

ok thanks
btw what does rtv mean? kinda new here

Krem · 09-25-2009, 07:40 PM

looking across the net, closest match I found for RTV was "Rotary Throttle Valve"... but I'd imagine that's something I'd find in a Mazda... not a Toyota... then again, a lot of things rotate in an engine block... so perhaps someone more mechanically enclined could confirm or say what it means..

Bill UK · 09-25-2009, 08:46 PM

Room Temperature Vulcanising (RTV). Silicon Sealant or I would recommend this product if you can get it in the US. Link it has the consistency of maple syrup and never dries, recommended by vintage car builders developed for Rolls-Royce.

nu_supra04 · 09-25-2009, 11:10 PM

Thanks
is it a problem that has to fixed immediately?

09-25-2009, 07:56 AM	#1
nu_supra04 Stock Join Date: Sep 2009 Location: Marysville Posts: 15	oil with spark plugs don't mix so i just recently bought a 1990 supra turbo with about 120500 miles on it, i plan to keep the body pretty much untouched unless for paint but I'm planning on definitely adding a a lot of power to. so i right now i got two questions, i recently read that getting a divorced downpipe adds hp so can anybody explain who that works?? also i was recently changing the spark plugs and as i took the old ones out some were covered in oil, any ideas to what is causing that? any help appreciated thanks

09-25-2009, 04:47 PM	#2
oregonjoe 3" Exhaust Join Date: Aug 2009 Location: Southern Oregon Coast Posts: 83	Oil on plugs The 4 plugs on the NO3 Oil Cover are leaking - very common. Its the black plate over the plugs. They go right to the valves. Put Oil plug washers on them and RTV There is a geat sticky on this topic on the MKIII form Attached Thumbnails

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09-25-2009, 06:46 PM	#3
nu_supra04 Stock Join Date: Sep 2009 Location: Marysville Posts: 15	ok thanks btw what does rtv mean? kinda new here

09-25-2009, 07:40 PM	#4
Krem 3" Exhaust Join Date: Sep 2009 Location: Las Vegas Posts: 167	looking across the net, closest match I found for RTV was "Rotary Throttle Valve"... but I'd imagine that's something I'd find in a Mazda... not a Toyota... then again, a lot of things rotate in an engine block... so perhaps someone more mechanically enclined could confirm or say what it means..

09-25-2009, 08:46 PM	#5
Bill UK AEM EMS Join Date: Jul 2006 Location: UK Posts: 891	Room Temperature Vulcanising (RTV). Silicon Sealant or I would recommend this product if you can get it in the US. Link it has the consistency of maple syrup and never dries, recommended by vintage car builders developed for Rolls-Royce.

09-25-2009, 11:10 PM	#6
nu_supra04 Stock Join Date: Sep 2009 Location: Marysville Posts: 15	Thanks is it a problem that has to fixed immediately?