SoCal Jet Boats

Tech Talk => Engine Mechanical / Electrical => Topic started by: Duke on July 05, 2011, 05:15:51 PM

Title: mallory dist. i.d - ys624mv2?? advance springs?
Post by: Duke on July 05, 2011, 05:15:51 PM

which pair of springs do i get for my dist?

tag on the side of the dist. says YS624MV2

on the summit racing webpage i only see springs for YT, YH and YL type dist?

do i just match the advance type thats underneath the points?

Title: Re: mallory dist. i.d - ys624mv2?? advance springs?
Post by: Duke on July 05, 2011, 05:29:56 PM

pics of the springs in my dist.
[attachimg=1]

Title: Re: mallory dist. i.d - ys624mv2?? advance springs?
Post by: Duke on July 05, 2011, 05:43:23 PM

http://www.centuryperformance.com/mallory-distributor-assembly-drawing-marine-breaker-point-spg-169.html (http://www.centuryperformance.com/mallory-distributor-assembly-drawing-marine-breaker-point-spg-169.html)

thats the only thing i could find that identifies my YS advance type. but doesnt say which springs work for me

Title: Re: mallory dist. i.d - ys624mv2?? advance springs?
Post by: mobboss on July 05, 2011, 05:53:15 PM

in most cases, the springs are put into catigories of weight . meaning as to what rpm they open i have even used two different springs to get the desired rpm . depending on price, just buy them all and play with them. other wise just go with your letters.

Title: Re: mallory dist. i.d - ys624mv2?? advance springs?
Post by: TIMINATOR on July 06, 2011, 08:18:30 AM

Take it to someone who HAS a distributor machine and can set it up PROPERLY, clean it, and relube it with the proper marine stuff. For what you will pay for a bunch of springs, time, and shipping, it will be worth it to have it done correctly. You want: 12 degrees of mechanical advance starting at 1200-1400 rpm and all in at 2800-3000 rpm. Install it with 10 deg initial to start with and tune from there. Hint: the tach and sparkplugs are your tools. TIMINATOR 623-877-8553 for further questions.

Title: Re: mallory dist. i.d - ys624mv2?? advance springs?
Post by: Duke on July 06, 2011, 11:57:46 PM

can you tell me more about how my spark plugs are a tool in this situation? maybe a link i could read up on or a direction in which to look? thanks for the help Tim.

the springs are 30 and 37 a set

Title: Re: mallory dist. i.d - ys624mv2?? advance springs?
Post by: TIMINATOR on July 07, 2011, 07:39:47 AM

Google "sparkplugs", search sparkplug+reading or read the back of a Champion catalog, that will explain how they should look when in the proper heat range, and about rich/lean or detonation conditions. We read plugs for the locals all of the time, mebbie there is a local racer that can help you. Bring your used plugs(without touching the electrode ends) to your local dragstrip and ask someone that runs a fast car to help you. By the time they work themselves up to a 9 or 10 second car, they should have a grasp. You could post large, detailed pics and I probably can get you in the direction. TIMINATOR