A Chart for Engine Knocks

Discuss all things Model T related.
Forum rules
If you need help logging in, or have question about how something works, use the Support forum located here Support Forum
Complete set of Forum Rules Forum Rules
User avatar

Topic author
Bill Robinson
Posts: 302
Joined: Sun Jan 06, 2019 2:24 pm
First Name: Bill
Last Name: Robinson
* REQUIRED* Type and Year of Model Ts owned: '21 Depot Hack, '25 Touring Car, '26 Roadster Pickup, '27 Tudor, & another '27 Tudor
Location: Salty Bottom, ALABAMA AL
MTFCA Number: 22487
MTFCI Number: 17887
Board Member Since: 1999
Contact:

A Chart for Engine Knocks

Post by Bill Robinson » Tue May 24, 2022 3:55 pm

I’m looking for a chart that lists the type of knock a motor is having and the chart will suggest whether the rods bearings need to be adjusted or whether the mains need to be adjusted, or maybe a bent or twisted conn rod. It’s been a while since the chart has been on the forum, I think, and I’m unable to find it through searching.
For instance, I’m having a slight tapping at about 25-30mph when there is no load on the motor. Speed up, slow down, or retard the spark a notch or two and the noise goes away. This noise just started after a one-day ride.
If you saved the chart could you please post it?


Scott_Conger
Posts: 6428
Joined: Sun Jan 06, 2019 11:18 am
First Name: Scott
Last Name: Conger
* REQUIRED* Type and Year of Model Ts owned: '13, '15, '19, '23
Location: Clark, WY
Board Member Since: 2005

Re: A Chart for Engine Knocks

Post by Scott_Conger » Tue May 24, 2022 4:44 pm

Bill

I think you're looking for this: https://www.mtfca.com/books/Course.htm

It is a worthy read, especially for those who are relatively new to the hobby
Scott Conger

Tyranny under the guise of law is still Tyranny

NH Full Flow Float Valves
Obsolete carburetor parts manufactured

User avatar

Topic author
Bill Robinson
Posts: 302
Joined: Sun Jan 06, 2019 2:24 pm
First Name: Bill
Last Name: Robinson
* REQUIRED* Type and Year of Model Ts owned: '21 Depot Hack, '25 Touring Car, '26 Roadster Pickup, '27 Tudor, & another '27 Tudor
Location: Salty Bottom, ALABAMA AL
MTFCA Number: 22487
MTFCI Number: 17887
Board Member Since: 1999
Contact:

Re: A Chart for Engine Knocks

Post by Bill Robinson » Tue May 24, 2022 6:52 pm

That is a very educational and informative link and I'm going to save it. But, that is not what I'm looking for. The chart that I've seen for the past 20 or so years is much more detailed and deals only with engine KNOCKs.

User avatar

TWrenn
Posts: 3386
Joined: Sun Jan 06, 2019 10:53 am
First Name: Tim
Last Name: Wrenn
* REQUIRED* Type and Year of Model Ts owned: '13 Touring, '26 "Overlap" Fordor
Location: Ohio
MTFCA Number: 30701
MTFCI Number: 24033
Board Member Since: 2019

Re: A Chart for Engine Knocks

Post by TWrenn » Tue May 24, 2022 7:04 pm

The Ford Service manual...a.k.a. the "black bible" does have, albeit relatively short and to the point, a section that talks about engine knocks, and their proposed remedies.


KBurket
Posts: 120
Joined: Mon Dec 14, 2020 1:17 pm
First Name: K
Last Name: Burket
* REQUIRED* Type and Year of Model Ts owned: 1926 RPU
Location: Seattle,Wa
MTFCA Number: 49752
MTFCA Life Member: YES
Board Member Since: 2017

Re: A Chart for Engine Knocks

Post by KBurket » Wed May 25, 2022 3:06 am

This old post includes a copy of a page from Dykes manual.
“Causes of Engine Knocks.”
https://www.mtfca.com/discus/messages/4 ... 1404141864

User avatar

Topic author
Bill Robinson
Posts: 302
Joined: Sun Jan 06, 2019 2:24 pm
First Name: Bill
Last Name: Robinson
* REQUIRED* Type and Year of Model Ts owned: '21 Depot Hack, '25 Touring Car, '26 Roadster Pickup, '27 Tudor, & another '27 Tudor
Location: Salty Bottom, ALABAMA AL
MTFCA Number: 22487
MTFCI Number: 17887
Board Member Since: 1999
Contact:

Re: A Chart for Engine Knocks

Post by Bill Robinson » Wed May 25, 2022 8:36 am

KBurket- THAT's it! Thanks.

User avatar

TWrenn
Posts: 3386
Joined: Sun Jan 06, 2019 10:53 am
First Name: Tim
Last Name: Wrenn
* REQUIRED* Type and Year of Model Ts owned: '13 Touring, '26 "Overlap" Fordor
Location: Ohio
MTFCA Number: 30701
MTFCI Number: 24033
Board Member Since: 2019

Re: A Chart for Engine Knocks

Post by TWrenn » Wed May 25, 2022 9:29 am

Also try Pg. 244-245 in the Ford Service Manual

Post Reply Previous topicNext topic