|
|
|
|
| Author |
|
|
Registered
|
valve cover gaskets
87 carrera
i use the porsche kit 930 105 902 01 ..The green and black combination bought from our host. Please advise what Torque value should be used with these? my mechanic said that if it is a Porsche gaskets it should be 18 FT/LB. and bently and others on this forum say 6 ft/lb. any thoughts or suggestions? |
||
11-03-2019, 02:45 PM
|
|
|
Registered
Join Date: Mar 2001
Location: Marysville Wa.
Posts: 22,486
|
Just tighten by hand and don't strong arm them. I never used a torque wrench on them, ever.
__________________
https://www.instagram.com/johnwalker8704 8009 103rd pl ne Marysville Wa 98270 206 637 4071 |
||
|
11-03-2019, 04:32 PM
|
|
|
Formerly known as Syzygy
Join Date: Mar 2008
Location: Calgary, AB
Posts: 4,420
|
I usually do about 15 - 18 lbs-ft, but like John says, snug them up then a quarter turn or so more. You could try to torque to get a feel, but it's not a critical fastener, so don't overthink it.
__________________
Kevin 1987 ROW coupe, Marine blue, with a couple extra goodies. The cars we love the best are the ones with human traits, warts and all. |
||
|
11-03-2019, 04:47 PM
|
|
|
Reiver
Join Date: Nov 2011
Posts: 57,484
|
15-18 ft. lbs. and never a leak...also rec. by the pro wrench that rebuilt my totally non leaking 930-10 after 43k miles.
Cross tighten as you would with head studs....and I sequentially tighten to 10 lbs. then to the 15. Maybe overkill but only takes a sec and dry as a bone.
__________________
De Oppresso Liber Strength and Honor 5th Legion |
||
|
11-03-2019, 05:13 PM
|
|
|
Registered
Join Date: May 2004
Location: Boulder, Colorado
Posts: 7,275
|
I am gratified that JW, who has worked on these engines all the time for many years (not just once every few years), does these non-critical fasteners by hand, like I do. And he's doing customer engines, where leaks would affect his business, so methods that work are especially important.
I've taken to using a stubby socket wrench so I don't have a lot of leverage and can't overtighten. When you have leaks around the covers, the inclination is to twist them tighter. Not apt to help, can warp the cover some. I like to use the orange neoprene (?) pliable gaskets, which can be reused a lot (if you don't tear them, especially if you don't try to remove them when the engine is still hot), and it is especially important with these not to overtighten. But it is easy to develop the feel for hand tightening these so you get them all about the same tightness. |
||
|
11-03-2019, 10:17 PM
|
|
|
Registered
Join Date: May 2002
Location: Portland, Oregon
Posts: 12,668
|
As with many non critical fasteners, I usually tighten them until they are just snug and then add a 1/8 turn. If leaking, another 1/8 turn.
__________________
Harry 1970 VW Sunroof Bus - "The Magic Bus" 1971 Jaguar XKE 2+2 V12 Coupe - {insert name here} 1973.5 911T Targa - "Smokey" 2020 MB E350 4Matic |
||
|
11-03-2019, 10:24 PM
|
|
|
|
Registered
|
David as written above ,all you have to do get the feel in your hands..and start in the middle work your way out on each side....no torque wrench necessary..
Ivan
__________________
1985 911 with original 502 191 miles...808 198 km "The difference between genius and stupidity is that, genius has its limits". Albert Einstein. |
||
|
11-03-2019, 11:34 PM
|
|
