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Re: 216 timing pointer [Re: Coltonk] #1342086 Tue Jan 14 2020 07:06 AM
Joined: Jan 2020
Posts: 65
C
Coltonk Offline OP
Wrench Fetcher
Just curious though... What is the hole on the right side of the engine for..


Colton Kenshol
Hermiston, Oregon

1950 Chevy 3100
216 Motor
Mostly Original..
Re: 216 timing pointer [Re: Coltonk] #1342103 Tue Jan 14 2020 02:02 PM
Joined: Jan 2013
Posts: 1,529
N
ndkid275 Offline
Shop Shark
GM wanted to see how many user they could confuse by creating another window! 🤣

Re: 216 timing pointer [Re: Coltonk] #1342107 Tue Jan 14 2020 02:13 PM
Joined: Sep 2001
Posts: 29,303
tclederman Offline
Boltergeist
Originally Posted by Coltonk
Just curious though... What is the hole on the right side of the engine for..

I do not know; however, my 1960 261 in a large school bus had that hole on its clutch housing (on the driver's side).


Tim
1954Advance-Design.com
1954 3106 Carryall Suburban - part of the family for 49 years
1954 3104 5-window pickup w/Hydra-Matic - part of the family for 15 years
Z-series (54/55) GMC 350 (2-ton) COE - now part of Dave's family
- If you have to stomp on your foot-pedal starter, either you, or your starter, or your engine, has a problem.
- The 216 and early 235 engine are not "splash oilers" - this is a splash oiler.
Re: 216 timing pointer [Re: Coltonk] #1342132 Tue Jan 14 2020 04:34 PM
Joined: May 2001
Posts: 1,347
W
Wally / Montana Offline
Shop Shark
As I mentioned before, I once "timed" a hole in the flywheel through that hole on the driver's side. It barely ran but it did run.


1948 3/4-Ton 5-Window Flatbed Chevrolet

28 Years of Daily Driving. Now with a '61 261, 848 head, Rochester Monojet carb, 4.10 rear, dual reservoir MC, Bendix up front, 235/85R16 tires, 12-volt w/alternator, electric wipers and a modern radio in the glove box.
Re: 216 timing pointer [Re: Coltonk] #1342499 Thu Jan 16 2020 10:34 PM
Joined: Aug 2000
Posts: 179
R
RAC1812 Offline
Shop Shark
Our solution.......

because our semi cab over military trucks are impossible to get under the hood........ before we install the cab..... and do the test run of the engine we do the following.....

1 establish...... using the GM little hole.....exactly where the timing mark is and the BB in the flywheel......and paint in vivid color.

2 crawl underneath and with the sheet metal cover removed from the bottom of the bell housing..... punch and paint a yellow paint dot on the back of the clutch body.

3 before the floor goes down.... remove the inspection cover on the bellhousing ( 2 screws) and mark TDC punch and yellow paint dot on the clutch body.

4 grind a small groove at 12 o'clock on the harmonic balancer and paint as above.

You may never know when you will need either of them................ for example when turning the flywheel by hand from underneath for setting valves etc.....

Once our cabs are in place it is a pure nightmare and can't even use a timing light for lack of room.

Bob C.


Bob C.
CMP Heaven
The Hammond Barn
Re: 216 timing pointer [Re: Coltonk] #1342599 Fri Jan 17 2020 07:54 PM
Joined: Feb 2004
Posts: 19,687
H
Hotrod Lincoln Offline
Boltergeist
I have set up a few late model small block V8's with the #1 timing mark at the 12:00 position to time on the #8 cylinder- - - -much easier to reach and see in the race car with the timing mark 90 degrees clockwise.
Jerry


The murder victim was drowned in a bathtub full of Rice Krispies and milk.
The coroner blamed the crime on a cereal killer!

Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
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