valve gap

Moderators: Sluggo, Amskeptic

Post Reply
User avatar
dingo
IAC Addict!
Location: oregon - calif
Status: Offline

valve gap

Post by dingo » Sat Oct 24, 2015 10:27 am

i have for the longest time, adjusted valves at
TDC 1e, 1i, 2i and 4 e
rotate 360 3e,3i,4i and 2e

my reasons were 1) repositining in dirt twice instead of four times
2) 180 deg pulley marks are often are off or non-exist.


i finally checked the other day vs the standard method, and found 1 and opposing 3 were exact
but 2 and 4 were all too tight like 004

what causes that ? camshaft flopping around or ???
'71 Kombi, 1600 dp

';78 Tranzporter 2L

" Fill what's empty, empty what's full, and scratch where it itches."

User avatar
Amskeptic
IAC "Help Desk"
IAC "Help Desk"
Status: Offline

Re: valve gap

Post by Amskeptic » Sat Oct 24, 2015 11:46 am

dingo wrote:i have for the longest time, adjusted valves at
TDC 1e, 1i, 2i and 4 e
rotate 360 3e,3i,4i and 2e

my reasons were 1) repositining in dirt twice instead of four times
2) 180 deg pulley marks are often are off or non-exist.


i finally checked the other day vs the standard method, and found 1 and opposing 3 were exact
but 2 and 4 were all too tight like 004

what causes that ? camshaft flopping around or ???
Adjust the valves only at TDC for that specific cylinder. Yes, the camshaft can shoved sideways by some other open valve. On worn engines or sloppy new cam bearings, the camshaft movement can move .001+
BobD - 78 Bus . . . 112,730 miles
Chloe - 70 bus . . . 217,593 miles
Naranja - 77 Westy . . . 142,970 miles
Pluck - 1973 Squareback . . . . . . 55,600 miles
Alexus - 91 Lexus LS400 . . . 96,675 miles

Post Reply