HS 2.8 TGV Alternator/Tach ?? - Defender Source
Defender Source  

Go Back   Defender Source > Defender & Series Technical Discussions > Defender Technical Discussions


Reply
 
Thread Tools
  #1  
Old March 29th, 2009, 12:54 PM
nikojo's Avatar
nikojo
Status: Offline
John
D90 SW -- 2.8PS
Member
 
Join Date: Jun 2008
Location: Fly over Country
Posts: 587
HS 2.8 TGV Alternator/Tach ??

Anyone know how many "pulses" per rev the alternator gives for the tach??

I'm assuming the tach gets its signal from the alternator on the 2.8?? Does it have a "W" post like other engines??
Reply With Quote
Sponsored Links
Advertisement
 
  #2  
Old March 29th, 2009, 09:30 PM
Michael
Status: Offline
Michael
Discovery 1998
Member
 
Join Date: Dec 2004
Location: USA
Posts: 290
i don't really know, but it is reasonable to say that it sends the same number of pulses as the NAS Discovery 4.0liter V-8's alternator. I say this because when I installed this engine into my discovery, the only reason my tach reads 20% lower than it should with the TGV is due to this: the alternator's turns per engine crank shaft revolution is less, as per M&D. Now we just have to figure out how many pulses the NAS shoots out.
Reply With Quote
  #3  
Old March 29th, 2009, 09:52 PM
nikojo's Avatar
nikojo
Status: Offline
John
D90 SW -- 2.8PS
Member
 
Join Date: Jun 2008
Location: Fly over Country
Posts: 587
The alternator is essentially a voltmeter which converts the information into RPM's.

You have to know the crank pulley to alternator pulley ratio and then you need to know how many "poles" the alternator has in a revolution......then you can figure the pulse rate, ie pulses generated per turn of the crank.

I know none of this!?!?!
Reply With Quote
Reply

Lower Navigation
Go Back   Defender Source > Defender & Series Technical Discussions > Defender Technical Discussions

Tags
ac, alternator

Thread Tools

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
New Air filter box for HS 2.8 engine Santiago Defender Technical Discussions 6 November 17th, 2016 04:33 AM
Overdrive for 110 with 2.8 TGV Santiago Defender Technical Discussions 96 March 6th, 2011 09:36 PM
Air filter for 2.8 HS TGV engine Santiago Defender Technical Discussions 10 September 20th, 2008 02:24 AM
HS 2.8L TGV 110 Project dannykim8379 For Sale - Vehicles 39 January 9th, 2008 11:43 PM
The 2.8 TGV and 300TDI to GM adapters are in stock OBW_Canada The Vendors Loft 5 December 14th, 2006 11:12 PM


All times are GMT -5. The time now is 03:34 AM.


Copyright