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Engine Specific Info and Questions => IDI Engine => Topic started by: turbosuzi on September 29, 2007, 09:20:00 am

Title: pump timing metric/ASE conversion
Post by: turbosuzi on September 29, 2007, 09:20:00 am

I bought a pump timing kit and rebuilt pump on ebay. Installed the pump and Im ready to time the pump but then I realized that the dial indicator is in inches. does anyone have the in metric conversions for the dial?

Also I was going to advance the timing but forgot what the amount of advence is.

Title: pump timing metric/ASE conversion
Post by: jtanguay on September 29, 2007, 10:09:58 am

1 millimeter = 0.0393700787 inch

Title: pump timing metric/ASE conversion
Post by: mk2diesel on September 29, 2007, 02:19:08 pm

depending on the engine ....    .028" to .034" is in range    aim for .032"

Title: pump timing metric/ASE conversion
Post by: turbosuzi on September 30, 2007, 10:39:20 am

On the dial .032 would be at the 30 plus 2 ticks past. Correct?

Title: pump timing metric/ASE conversion
Post by: mk2diesel on September 30, 2007, 01:39:51 pm

depends on the guage markings     .. might only be 1 tick ( if 1 tick = 2 degrees)

Title: pump timing metric/ASE conversion
Post by: turbosuzi on September 30, 2007, 03:34:20 pm

On my dial it reads 1 tick as .001 in.

Title: pump timing metric/ASE conversion
Post by: jimfoo on September 30, 2007, 08:22:48 pm

You might want to go .04 as that is 1.01mm which is in the range most people advance their timing to.

Title: pump timing metric/ASE conversion
Post by: Patrick on October 01, 2007, 03:09:02 am

Thy run well at .42................... :D

Title: pump timing metric/ASE conversion
Post by: jtanguay on October 01, 2007, 04:53:41 am

iirc the lower timing is retarded for emissions.  try for 0.039 or 0.040"