TR7 & TR8 Mailing List

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51
Wedge List / Re: car chug
« Last post by Bruce Riley on September 01, 2018, 01:56:30 PM »
Hello again triumph enthusiasts!  Working on the mixture issue and I was

wondering if there is a trick to it.  i have turned both carbs left and

right but not sure what I am doing.  Things are sounding better but not to

where it was prior.  So any tricks to the trade or does the back carb and

the front carb differ in some way?  If there is a method please advise.

thanks

Bruce
52
Wedge List / Re: Working on TR8 EFI wiring
« Last post by fosmith@aol.com on August 31, 2018, 03:53:15 PM »
Third question at this time is ...  does this system fire the injectors with

12 volts?  many systems use a base voltage of 5 and 12  gives me a little

concern?



 Well, there's a resistor pack in the FI harness (attached to the firewall) between the ECU and the injectors.  I don't know the values but that probably indicates that the injectors do not see 12 volts.







Fred
53
Wedge List / Re: Working on TR8 EFI wiring
« Last post by fosmith@aol.com on August 31, 2018, 03:51:02 PM »
No oil pressure switch on the injected cars?





 



 No, its function is performed by the switch in the air flow meter, which cuts power to the fuel pump when the engine stops running and the afm flap closes.  







Fred
54
Wedge List / Re: Working on TR8 EFI wiring
« Last post by "Jim Altman" on August 31, 2018, 01:47:43 PM »
Well, there is an oil pressure switch, but only for the idiot light.  1

wire.





Jim Altman

jaltman636@gmail.com
55
Wedge List / Re: Working on TR8 EFI wiring
« Last post by "Jim Altman" on August 31, 2018, 01:47:01 PM »
No.





Jim Altman

jaltman636@gmail.com
56
Wedge List / Re: Working on TR8 EFI wiring
« Last post by Triplesn8s on August 31, 2018, 01:42:06 PM »
No oil pressure switch on the injected cars?



Bill

Sent from my iPhone
57
Wedge List / Re: Working on TR8 EFI wiring
« Last post by Mark Elbers on August 31, 2018, 01:39:58 PM »
And the injectors are 12v.



But it is pulsed.  If you connect one up to 12v and leave it on,   it will

likely burnout the solenoid.....



Cheers







Sent from my iPhone



>
58
Wedge List / Re: Working on TR8 EFI wiring
« Last post by "Jim Altman" on August 31, 2018, 01:35:22 PM »
The fuse panel has the three screws you see.  Then there is bolt through the

firewall with a nut in the engine bay.  The bracket is U shaped and is

squeezed from underneath and the fuse panel can be withdrawn into the foot

well.



The fuel pump gets no power unless the car is running.  Its is powered during

start up through the combo relay and there is a contact switch in the AFM

which is closed when the AFM is drawing air,  Also, there is an impact cutoff

switch behind the clutch reservoir that needs to be checked.





Jim Altman

jaltman636@gmail.com
59
Wedge List / Working on TR8 EFI wiring
« Last post by burtonbob@sasktel.net on August 31, 2018, 12:07:38 PM »
Hi All,   I am working on a late TR8 (after sn 402027 as per Team.net wiring

diagrams)  and am trying to check out the combo relay.  Is there a way to

lower the fuse panel from behind the glove box to gain easier access.  I am

going to try removing the 3 screws behind the access cover to see if that

works.  Anyone else good at this?



I have been working on a no start, had no injectors firing and found loose

ground on ECU wiring harness (left rear of engine) which seemed to have solved

that problem.  Now I have no power to fuel pump.  I had the engine out last

winter and had removed the Ecu wiring  and associated wiring from  under the

dash and that is why I am trying to check the connections at the combo relay.

Any suggestions on that would also be helpful.



Third question at this time is ...  does this system fire the injectors with

12 volts?  many systems use a base voltage of 5 and 12  gives me a little

concern?



I have been lurking on this list for many years but seldom post.  I have

learned much from your postings, but in this instance I have some direct

questions.  Thanks in advance for your help on this,    Bob Burton       1981

TR8   EFI      Regina, Sk.  Canada

--

.

Archives provided courtesy  http://www.triumphwedgeowners.org
60
Wedge List / Re: online parts catelogue for TR7 TR8
« Last post by DAVID MASSEY on August 31, 2018, 07:08:08 AM »
Cool.  Thanks.



 



Dave Massey
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