6pack
[Top] [All Lists]

Re: [6pack] Tune up help

To: Bob Peglow <rpeglow@optonline.net> FILETIME=[D598D790:01CFCD5D]
Subject: Re: [6pack] Tune up help
From: James_ <jattr6@hotmail.com>
Date: Wed, 10 Sep 2014 18:15:09 -0700
Cc: 6 Pack <6pack@autox.team.net>
Delivered-to: mharc@autox.team.net
Delivered-to: 6pack@autox.team.net
References: <BLU406-EAS38695F22D95CA7EEDEBCCB480CE0@phx.gbl> <1410243559.27512.YahooMailNeo@web160304.mail.bf1.yahoo.com> <BLU406-EAS142856835AC34C19B68E46980CE0@phx.gbl> <66ecddae.e9dd2.1485bb34582.Webtop.43@optonline.net> <BLU406-EAS7A165BF9DF88A3D0C1E0E80CF0@phx.gbl> <10491db3.eb089.1485fd28122.Webtop.43@optonline.net>
So I will need to tinker with the carbs next. Needle and idle. Not sure about 
mixture screw. And how to tell it is set properly without a CO sniffer. 
I own the Bentley manual. 
It just seems I always need to tinker shortly after I get everything set. 
Probably typical of these cars and we all experience that. Hah. 
So in the past, at stop lights I find myself pulling the choke out to keep it 
from dying. Always thought it was poor carb adjustments. Is that correct? Or 
maybe it is everything. 

What types of things do others typically have to adjust often? 
Points, valves and possibly timing seem most logical and is what I end up 
adjusting often I. The past. Carbs should hold up longer I would think. 

Thanks again everyone. 
American cars don't compare in the level of joy...except maybe a 60's corvette 
stingray!

James


bSent from my Atari 2600b

> On Sep 10, 2014, at 6:48 AM, "Bob Peglow" <rpeglow@optonline.net> wrote:
> 
> Seems timing and advance are in the ballpark.
> What are the running/performance symptoms now?
> Bob
> 
> 
>> On Tue, Sep 09, 2014 at 09:28 PM, James_ wrote:
>> 
>> Ok.  So I sent the timing at 12 BTDC with emission vacuum hose disconnected 
>> and taped to cover hole. Dwell is actually dead on 40. Rechecked points. 
>> They are .015inch
>> 
>> There is barely any wobble to the dizzy. Tiny bit. Timing is at around 4 
>> BTDC but it isn't super steady. Bounces a bit. The RPMs are at 1200-1400.
>> 
>> Maybe now I need to go to the carbs and idle screws.
>> 
>> bSent from my Atari 2600b
>> 
>>> On Sep 9, 2014, at 11:35 AM, "Bob Peglow"  wrote:
>>> 
>>> Hi James,
>>> When you connect dwell meter make sure it is set for 6 cylinders.
>>> Try looking at engine RPM on the meter. If it closely matches your car 
>>> tachometer RPM the meter is probably working correctly.
>>> Switch the meter to the dwell setting and you should see reading of 35 or 
>>> so.
>>> Dwell affects timing. If the dwell is 35 +or- 3 degrees you are in the ball 
>>> park.
>>> Others may jump in with setting opinions.
>>> Good luck.
>>> Regards,
>>> Bob
>>> 
>>> 
>>>> On Tue, Sep 09, 2014 at 01:23 PM, James_ wrote:
>>>> 
>>>> Thanks.
>>>> So I set the timing last night and retarded it down to around 8 it was 
>>>> higher (12?). I think it is BTDC, but I forget which is which. Hah. That's 
>>>> a problem, huh? I was trying out the timing last night and it was probably 
>>>> set fine. So do I disconnect and plug the vacuum tube or not? I guess I'll 
>>>> try to plug it and set to 12 BTDC. I think it may have been close to that 
>>>> and then with vacuum connected again would retard to around 4 degrees. Hmm.
>>>> Carbs were rebuilt (by me) and fresh Diaphragms.
>>>> Anyone use a device to measure points, dwell, etc? I bought one but that 
>>>> may be specific to American cars. I guess I could have the dizzy rebuilt. 
>>>> I dread placing it back in. I recall that being a pain in the past. What 
>>>> is the opinion of the petronix (?) thingy? I am guessing that replaces the 
>>>> points? Thanks so much!
>>>> 
>>>> bSent from my Atari 2600b
>>>> 
>>>>> On Sep 8, 2014, at 11:19 PM, "Sally or Dick Taylor"  wrote:
>>>>> 
>>>>> When you write that you set your timing at "8 degrees" I can't tell if 
>>>>> you mean before or after TDC. I believe the manual suggests that the 
>>>>> ignition timing be set at 4 deg. ATDC, when the vacuum retard line is 
>>>>> connected. If you set yours at 8 deg. ATDC, then your timing is retarded 
>>>>> too far. It should run that way of course, but the timing will be 
>>>>> retarded even when the retard feature "goes away" like when you open the 
>>>>> throttle. I suggest doing what many do here, and that is to plug the 
>>>>> vacuum line that goes to the distributor, then set the timing at 12 deg. 
>>>>> BTDC, as in Before top dead center. You'll want the engine idle speed to 
>>>>> be as close to 800rpm as you can get it using the carb idle screws, as 
>>>>> any engine speed more than this will start bringing in the mechanical 
>>>>> advance that can change the result. Reconnect the vacuum retard line, if 
>>>>> you wish. The result of reconnecting the vacuum retard will slow the 
>>>>> engine idle speed down some. If it is then idling too slow, speed it up by
>>  u
>>>> sing the carb idle screws.
>>>>> 
>>>>> Watch the timing marks on your front pulley to be sure they go higher as 
>>>>> the engine revs go up. If the highest mark is 24 on your pulley, speeding 
>>>>> up your engine past 2500 rpms should take it beyond this mark.
>>>>> There is nothing inherently wrong with the 1976 TR6. More original 
>>>>> emission controls, but it's still possible for your engine to run well.
>>>>> Dick
_______________________________________________
Archive: http://www.team.net/archive

6pack@autox.team.net
http://autox.team.net/mailman/listinfo/6pack


<Prev in Thread] Current Thread [Next in Thread>