Dizzy Vac unit

DNK · Postby **DNK** » 09 Feb 2014 20:57

A little off topic but not really.
Does anyone make a timing pointer better than what is on our car.
On mine the reference changes depending on where you are looking at it from
One that actually lays over top of the pulley?

Don
Stick a Wedge In It
80 TR7 V8 Kick in the pants

darrellw · Postby **darrellw** » 09 Feb 2014 23:17

<blockquote id="quote">quote:<hr height="1" noshade id="quote">Originally posted by DNK

A little off topic but not really.
Does anyone make a timing pointer better than what is on our car.
On mine the reference changes depending on where you are looking at it from
One that actually lays over top of the pulley?
<hr height="1" noshade id="quote"></blockquote id="quote">

Woody has one, but I don't know if it is any better. Also, check out the picture in the ROM, the place you read on the pointer probably isn't where you would think it is.

http://www.thewedgeshopstore.com/produc ... er-V8.html

Darrell Walker
66 TR4A IRS-SC CTC67956L
81 TR8 SATPZ458XBA406206
Vancouver, WA, USA

DNK · Postby **DNK** » 10 Feb 2014 00:11

Gee thanks Darrell.
Where were you this afternoon.
Now I need to check that out.
I have been reading my timer wrong?

By the way, how's the winter weather?

Don
Stick a Wedge In It
80 TR7 V8 Kick in the pants

DNK · Postby **DNK** » 10 Feb 2014 13:16

NOTE TO SELF

And others
Don't powder coat your timing pointer black.
It is bloody hard to see down there

Don
Stick a Wedge In It
80 TR7 V8 Kick in the pants

DNK · Postby **DNK** » 11 Feb 2014 00:10

Take note of this picture that Peter posted

If you look at the pointer and then compare the pulley marks.
They are on 2 different planes

The pointer is at 90* at a 10:00 position
and the pulley marks are at 300*
And the position you have to look down to shoot the timing light is about 11:30.

To me this doesn't make sense.
be much easier if there was one of these to use

Something that would sit right on top of the pulley

Sorry to continue to rant on this.
It is really bugging me for some reason

Don
Stick a Wedge In It
80 TR7 V8 Kick in the pants

darrellw · Postby **darrellw** » 11 Feb 2014 01:00

I just set mine with a vacuum gauge, don't need to try to look at the marks at all.

Darrell Walker
66 TR4A IRS-SC CTC67956L
81 TR8 SATPZ458XBA406206
Vancouver, WA, USA

wedgewa · Postby **wedgewa** » 11 Feb 2014 03:55

The Spring 2012 TWOA mag had info on these folks who rebuild the somewhat unique Delcos in TR7s:
www.qualityrebuilds.com

DNK · Postby **DNK** » 11 Feb 2014 11:03

<blockquote id="quote">quote:<hr height="1" noshade id="quote">Originally posted by darrellw

I just set mine with a vacuum gauge, don't need to try to look at the marks at all.<hr height="1" noshade id="quote"></blockquote id="quote">

You know Darrell, I thought of that too, but since mine timing advance is computer controlled I wondered if that would mess things up

Don
Stick a Wedge In It
80 TR7 V8 Kick in the pants

DNK · Postby **DNK** » 11 Feb 2014 11:05

On a side note, I brought the dizzy set up to a friends shop who had the proper screw sticks to remove the screws on the plastic cover and I removed my Vac. unit.[:)]

Now I need to make a plate or find a rubber plug to fit the hole

Don
Stick a Wedge In It
80 TR7 V8 Kick in the pants

darrellw · Postby **darrellw** » 11 Feb 2014 12:30

<blockquote id="quote">quote:<hr height="1" noshade id="quote">Originally posted by DNK

[quote]Originally posted by darrellw

I just set mine with a vacuum gauge, don't need to try to look at the marks at all.<hr height="1" noshade id="quote"></blockquote id="quote">

You know Darrell, I thought of that too, but since mine timing advance is computer controlled I wondered if that would mess things up

<hr height="1" noshade id="quote"></blockquote id="quote">

Yeah, I don't know. Do you set the timing now with the engine running, or just set a static TDC? Any idea what inputs the computer uses to determine advance? As long as those were not changing (or not changing too much) when you were messing with the distributor, it might work. Is your engine stock compression? If it is higher, you would probably need to back off from max vacuum a bit. Though I did see on your screen shot that you may have a knock sensor.

Darrell Walker
66 TR4A IRS-SC CTC67956L
81 TR8 SATPZ458XBA406206
Vancouver, WA, USA

DNK · Postby **DNK** » 11 Feb 2014 13:09

<blockquote id="quote">quote:<hr height="1" noshade id="quote">
Yeah, I don't know. 1. Do you set the timing now with the engine running, or just set a static TDC? 2. Any idea what inputs the computer uses to determine advance? As long as those were not changing (or not changing too much) when you were messing with the distributor, it might work. Is your engine stock compression? If it is higher, you would probably need to back off from max vacuum a bit. 3. Though I did see on your screen shot that you may have a knock sensor.
<hr height="1" noshade id="quote"></blockquote id="quote">

1. I set the timing with it running and I will be redoing it again now that I pulled it to remove the vac. piece.
2.No I do not know and I will check
3.No knock sensor on this car. Some GM's did use them so it is in there in the program

Don
Stick a Wedge In It
80 TR7 V8 Kick in the pants

Anonymous

Dizzy Vac unit

Who is online