Cruisers Forum

  This discussion is proudly sponsored by:
Please support our sponsors and let them know you heard about their products on Cruisers Forums. Advertise Here
Thread Tools Search this Thread Rate Thread Display Modes
Old 01-02-2021, 07:16   #1
Registered User

Join Date: Feb 2016
Posts: 32
4.108 flywheel

Iím trying to set new tachometer I donít know how many theeth are on flywheel. Itís a 1976 Perkins 4.108.
Rbrucek is offline   Reply With Quote
Old 01-02-2021, 08:08   #2
Senior Cruiser
tkeithlu's Avatar

Cruisers Forum Supporter

Join Date: Feb 2012
Location: Carrabelle, Florida
Boat: Fiberglas shattering 44' steel trawler
Posts: 3,696
Re: 4.108 flywheel

It sounds like you are too far along to substitute a different sender, such as a magnet glued to the flywheel. That said, is something stopping you from counting the teeth? You must have at least a small window on the flywheel in order to mount the optical sender. Paint one tooth white, be sure that the engine cannot crank, and use a breaker bar to turn one revolution back to the white tooth. Am I missing something here?
Never let anything mechanical know that you are in a hurry.
tkeithlu is offline   Reply With Quote


Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Similar Threads
Thread Thread Starter Forum Replies Last Post
Aligment of adaptor plate , flywheel and flywheel housing on Perkins 4.108? pr2501 Engines and Propulsion Systems 0 06-01-2019 18:40
Want To Buy: LF 2qm20 yanmar flywheel Junmity Classifieds Archive 0 08-11-2012 11:12
Tachometer (Flywheel) Sync swisscraft Engines and Propulsion Systems 1 07-03-2012 16:23
For Sale: Balmar Flywheel for Duel Alternator & Spot GPS Ram Classifieds Archive 0 21-11-2011 09:12
Flywheel / Alternator - Mercury Odyssey unbusted67 Engines and Propulsion Systems 9 11-06-2010 13:06

Advertise Here

All times are GMT -7. The time now is 05:46.

Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2021, vBulletin Solutions, Inc.
Social Knowledge Networks
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2021, vBulletin Solutions, Inc.

ShowCase vBulletin Plugins by Drive Thru Online, Inc.