April 28, 2024, 03:04:06 AM

News:


1980 sportster push rod adjustment

Started by nw69fl, June 10, 2013, 11:28:40 AM

Previous topic - Next topic

0 Members and 1 Guest are viewing this topic.

nw69fl

Can someone run through the push rod adjustment procedure for me? It's been awhile and I'm helping a friend with his sporty. Thanks

garyajaz

would love to type it for you. wrist and typing hand hurts.  will find my mamual and copy the page and post it here for you soon.
funny how your post been here a while and no help..sorry.


pretty much get the push rod on lowest point. valve closed...cam base circle, cold.  adjust to just free.
on exhaust i go a tad "freeer" cause it gets hotter.
some say get that cyl on top dead center compresson stroke (both valves closed) and do them both.
i do just one at a time.  if intake on full up exhaust should be full down.
but depending on your cams and over lap this may not be right.
hold on.  will copy manual.

well, copy came out with some of the left margin not printing.  the fold in book.  but this should get you there.  if need more help let me know



should be inspected and, if nec-
•••• te::l initially at 500 and 1000 miles
- es thereafter.
cold during tappet adjustment. As
justed, make sure it is at its low-
_ turning engine ahead until the like
cylinder is at its highest position
"IIpII!!:Ied.). The inlet valves are those
'-:IIu-etor.
press down on push rod cover
remove keeper at upper end.
Loosen tappet adjusting screw
adjusting screw (2) downward
push rod is just free and has
checking for push rod shake,
er tips just below. cylinder
1. Push rod-
2. Tappet adjusting screw
3. Tappet adjusting screw lock riut
4. Tappet body
Figure 3-10. Adjusting Tappets
head, and shake toward front and rear of engine.
Slowly turn adjusting screw upward (toward push rod)
until nearly all play is removed. At this point, lock
tappet screw lock nut against tappet body (4) and recheck
for correct tappet adjustment. A tappet is
correctly readjusted when push rod has slight amount
of play or shake, and can be turned freely with finger
tips, completely around, without trace of bind.
When reassembling push rod covers, make sure that
both ends of covers are properly seated against cork
washers.
REMOVING AND INSTALLING PUSH RODS ONLY
(Ftgure 3-10)
Before attempting to remove push rod and cover assembly,
turn engine until tappet is at its lowest position.
Turn adjusting screw lock nut (3) all the way
up to end of thread on adjusting screw (2). Turn adjusting
screw (2) all the way down into tappet body.
Remove push rod and cover assembly by prying push
rod upward and to one side, be careful not to bind
push rod upper end in aluminum rocker arm housing.
Doing so may result in a bent push rod. Install new
cork washers (3, Figure 3-5) in aluminum rocker
arm housing and in tappet guide, being careful not to
damage them and making sure they are well seated.
Replace cork washer (3, Figure 3-5) in push rod
cover with a new one.
Reassemble push rod and push rod cover assembly in
reverse order of disassembly. Check tappet adjustment
as described in "Adjusting Tappets."
79 3-13
••. 1'l,
-. ','

saltcaveminer