BIG DADDY’S WORKSHOP

Here he is The World Famous Moto Guzzi Shop Chief Mechanic BIG DADDY


Here is BIG DADDY showing us how to smoke a tire!

Here is BIG DADDY with his Moto Guzzi Shop dog BUDDY.

WARNING!!! WARNING!!!

NEVER approach BIG DADDY when his dog is out!!!!! BIG DADDY’S DOG doesn’t play. YOU HAVE BEEN WARNED!!!

BIG DADDY will now show you how to properly adjust the valves on a Tonti frame big block Guzzi. The bike he’s working on is a 1984 California 2. The factory specs for valve rocker arm clearance for the intake and exhaust is 0.22mm, valve adjustment must be made on COLD engine.

Tools needed for the job:


1 flashlight
2 spark plug tool
3 straw
4 10mm combination wrench
5 11mm combination wrench
6 BIG DADDY’S line up tool
7 BIG DADDY’S valve adjuster tool
8 torque wrench + 17mm socket
9 5mm T handle
10 socket / 10mm Allen
11 6mm Allen wrench
12 metric feeler gauge
13 spark plug wrench
14-assembly lube with molybdenum

BIG DADDY says step 1

Remove spark plugs from the bike.

STEP 2

Remove the 8 m6 socket head cap screws from the valve cover.

STEP 3

Remove the 4 m6 socket head cap screws and remove the altenator cover.

Step 4

Looking from the front of the engine, use 6mm Allen wrench and rotate engine clockwise. In this picture BIG DADDY is pulling the wrench UP.

Step 5

Rotate the engine until you align the D mark on the flywheel with the notch on the bell housing. D is the distributor side of the engine/ right side. The D means the right side piston is at TDC, top dead center. The engine needs to be at TDC on the compression stroke, both intake and exhaust valves will be completely closed. If both rocker arms are loose you are on the right stroke. If they are tight your on the wrong stroke, you need to rotate the engine clockwise again, until you get to the D mark for the second time.

STEP 6

Loosen the tappet adjusting screw nut with 11mm combination wrench

Then back the screw off of the push rod

STEP 7

Loosen the screw on the rocker arm spindle with 10mm combination wrench

Remove screw

STEP 8

Push the rocker arm spindle out of the rocker arm support and remove rocker arms and pushrods. It should look like this now:

STEP 9

Remove the plug that covers the top cylinder stud screw.

STEP 10

Place all parts in order left side on left- right side on right.

STEP 11

Torque the 6 head bolts to 30-32 ft pounds with torque wrench and 17mm socket in a criss cross pattern

STEP 12

The top head bolt requires a m10 Allen wrench, torque to 30-32 ft pounds following the criss-cross pattern.

STEP 13

Grease the push rods with assembly lube and install

STEP 14

Grease rocker arm washers and spring, install into rocker arm support. Use the line up tool to align rocker arm, washers and spring.

From bottom: brass washer, rocker arm, steel washer, spring and brass washer. Line up tool makes this an easy job.

STEP 15

Remove line up tool and replace it with the spindle shaft. Install spindle rocker screw with lock washer.

STEP 16

Adjust rocker gap to (0.22 mm on our bike) with feeler gauge and tappet wrench.

STEP 17

Tighten tappet screw nut with 11mm combination wrench and tappet wrench to 15 ft pounds

Double check valve gap with feeler gauge.

STEP 18

Replace plug over top head bolt and tighten to 15 ft pounds NO MORE 15 ft pounds!!!!

STEP 19

Install the exhaust valve rocker the same way as the intake, adjust the gap and your done with the right side valve adjustment.

You’re done, replace valve cover and go to left cylinder valves.

STEP 20

Set left side to TDC with both valves fully closed, rotate engine clockwise until you get to the S on the flywheel. Now retorque the left head and adjust valves on the left side.

NOTE: TDC right side =D think distributor side
TDC left side = S think starter side

STEP 21

Set gap on new sparkplugs and install

BIG DADDY says, “Adjust your valves and change your oil and plugs every 3000 miles.”

 

If you have questions or comments for BIG DADDY e-mail him at: BIGDADDY@motoguzzishop.com

Join BIG DADDY’S Fan Club and you’ll receive e-mail updates from BIG DADDY himself. You can also ask BIG DADDY technical questions about your GUZZI.

All you need to do is e-mail: BIGDADDY@motoguzzishop.com and you will be added to the Fan Club of BIG DADDY

BIG DADDY

 

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