Diesel Fuel Injection System Help Desk

**Dieseldude** · January 24th, 2008 10:59 AM

Originally Posted by sag0

its an isuzu hilander XTRM...

You can bring it here anytime. It doesn't take long too do a smole opacity test.

**zed2d** · January 24th, 2008 11:02 AM

Sir DieselDude

sir remember me. I was the one who ask you what type of tachometer i should use with my engine a toyota 3c-t engine with a bosch type VE pump.

**Dieseldude** · January 24th, 2008 11:14 AM

Originally Posted by edtf

wow!! what happened?? can you update us on this? para ma avoid namin yung dahilan ng ganyang klasseng damage

To my knowledge, most probable cause is "water in fuel".
I am still waiting for the dealer's failure analysis. The vehicle is with them.
They cannot install new injectors without knowing the root cause as the problem may recur.

I will keep you guys posted.

**sag0** · January 25th, 2008 01:49 AM

Originally Posted by Dieseldude

You can bring it here anytime. It doesn't take long too do a smoke opacity test.

thank you! expect me to drop by one of these days kind sir!

**Dieseldude** · January 25th, 2008 04:57 PM

Originally Posted by zed2d

Sir DieselDude

sir remember me. I was the one who ask you what type of tachometer i should use with my engine a toyota 3c-t engine with a bosch type VE pump.

HI Zed2d,

I'm sorry I can't help you in this area as I don't have any infomation on Toyota's tachometer specifications. Here are some basics though.

The VE pump has an rpm sensor which measures pulses from the internal pump gear teeth. Pulse signals are sent to the tach. Tachometers are calibrated to indicate 1 engine rpm at a specific pulse count. Your pump turns at 1/2 engine speed. So, number of tooth pulses per 1 pump revolution X 2 should indicate 1 engine rpm.

An aftermarket tachometer with DIP switches at the back for pulse count settings should work. But I don't know if this is available in the market.

**maedz** · January 29th, 2008 07:13 PM

sir Dieseldude,

i have this figure written under my hood "INITIAL INJECTION TIMING 10 DEG. ATDC", does this mean that this is the timing that my pump will be adjusted whenever i'll have it overhauled or calibrated? or since it is INITIAL, this timing is only used when it is still new and didnt finished the break-in period.

pls enlighten me.. TIA.

MAEDZ

**Dieseldude** · January 30th, 2008 11:48 AM

Hi Maedz,

What is your car?

Bye,

Dieseldude

**maedz** · January 30th, 2008 12:54 PM

Originally Posted by Dieseldude

Hi Maedz,

What is your car?

Bye,

Dieseldude

ranger trekker 2002 po sir.

**Dieseldude** · January 30th, 2008 02:52 PM

sir Dieseldude,

i have this figure written under my hood "INITIAL INJECTION TIMING 10 DEG. ATDC", Your engine has to be positioned at 10 deg ATDC with piston #1 at power stroke during injection pump installation. You should see another figure stamped on your dataplate, for example: Plunger travel 0.5mm plunger lift. This is your injection pump's drive shaft position during installation. Plunger travel is measured with a dial indicator tool. See copy-attached sample picture.

does this mean that this is the timing that my pump will be adjusted whenever i'll have it overhauled or calibrated? No it's not. The above info shows the engine and injection pump positions during installation. The injection pump has it's own internal timing specs during calibration.

or since it is INITIAL, this timing is only used when it is still new and didnt finished the break-in period. The figures under your hood are your pump-to-engine's timing specs, old or new, break-in or not.

I hope you got it clear.

Bye, Dieseldude

pls enlighten me.. TIA.

MAEDZ