What t-bolt module do I have
 

I bought it from a member here and wrote it down but can't find my paper.

Here is the #
6D04A V6-14
I read this part # with a mirror on back of the the starbord cylinder head so I'm not sure those numbers are 100% correct.
I have 24*@ 800rpm, 30* @1000, and 32* @ 3000, and that's assuming my 1989 VDO OE Checkmate tach is correct.


Does anyone know the advance curve of this module?

Re: What t-bolt module do I have
 

It is a 14deg advance that is what the 14 stands for. If you have 24 deg initial then you are at 38 full advance. Sounds a little high unless you got good fuel and aluminum heads.

Re: What t-bolt module do I have
 

Hmmmm, when is full advance?

Re: What t-bolt module do I have
 

Around 3000rpm

With a timing light, raise the rpm until the timing mark no longer advances. That is the more prefered timing procedure than at idle as most are accustomed to.
Theoritically, initial timing at idle + the built in advance of the module= full advance timing.

Re: What t-bolt module do I have
 

if you have it on a v8 it's only 6-10 adv from initial. When in water,check your total advance.Some adv all the way up to 4500rpm.

Re: What t-bolt module do I have
 

Be back in a minute, I'm going to double check the readings.

Re: What t-bolt module do I have
 

I've been running the V-6 modules for a few years. They will advance 14 degrees only when installed on a 6 cyl. When installed on an 8 cyl they will only give you 8-10 degrees.

I have them on my blower motors. all the advance is out by 3000.

Kurt

Re: What t-bolt module do I have
 

28* @ 900, 32@ 1500, 32@ 2000, 32* @ 2500, and 32* @ 3000. I'm not gonna rev the motor past 3k to check the timing. It should be there as far as I'm concerned.

I have suspected my tach being off with my previous motor, but being a well experienced auto mechanic and judging by ear, I am pretty confidant the tach is somewhat close. Like + or - 500 rpms.

Re: What t-bolt module do I have
 

24 at 800? The module is not advancing at 800 so your base must be close to 24 and your total advance around 8 as Biggus says. It may advance more above 3000 indicated. Better check. You could also look at a Crane HI 6M.

Re: What t-bolt module do I have
 

im interrupting ok i have 24 degree module when i set the intial timing the book states 4 degrees i guess my question is at idle i use the light and set it at 4 and when the rpm is at 2500-3000 my total is 28?help

Re: What t-bolt module do I have
 

Yes, that is correct. Total timing is advance + base. I'm not sure about at what RPM each module gets to full advance though. Someone on this board probably knows the specs of all Merc modules. Biggus says mine is fully advanced at 3000.

Re: What t-bolt module do I have
 

Total advance occurs at different rpm's,

V8-20R is 20* @ 5250
V8-HP is 20* @ 3000
V8-22 is 22* @ 4500
V8-22A is 22* @ 3500
V8-24 is 24* @ 3750
V8-24S is 24* @ 5000

Re: What t-bolt module do I have
 

Iggy, I'm curious, the numbers for the 22 and 22A are a$$ backwards between the Merc service bulletin and Dennis Moore's book. Which source are you relying on?

I've never taken the time to actually check with a timing light even though I run both from time to time.