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-   12 Valve Engine and Drivetrain (https://www.dieseltruckresource.com/forums/12-valve-engine-drivetrain-100/)
-   -   starting crank time?? (https://www.dieseltruckresource.com/forums/12-valve-engine-drivetrain-100/starting-crank-time-288027/)

fast59 04-03-2011 10:48 AM

starting crank time??
 
So when i had my first gen engine in the truck that thing would be an immediate start almost didn't even hear the starter crank.My new 215 pumped engine turns over a little more than i think it should by that i mean the starter cranks a revolution or two then fires its not stumbley or anything when fired up just cranks over a bit.Is this normal.

Robert Rausch 04-03-2011 11:25 AM

That's what mine does. It's a '95 with a Cal. pump.

torquefan 04-03-2011 12:58 PM

Yep, sounds normal. Nothing in the world seems to start as quick as a first gen. I always give a 2nd gen a tiny bit of throttle while cranking to help it fire faster. If the idle speed has fallen off it will aggravate the condition too. It might be worth a check.

dstad 04-03-2011 01:41 PM

Ive got the same prob, 1st gen engine started imediatly, new one cranks and cranks

Tate 04-03-2011 05:51 PM

If your idle is in a good place, just tap the throttle when you crank and it'll fire right up. IIRC, VE's go WOT when cranking. P-pumps have an higher starting quantity of fuel vs. idling, but tapping the throttle gives it that little extra to get going quicker.

fast59 04-03-2011 08:21 PM

My idle is in a good spot,some one had mentioned that the overflow valve may be a cause.Its not a horrible thing by no means just seemed funny.

rebal 04-04-2011 04:35 PM

its normal for a P pump most take one revolution or so ,not like a first gen that starts first piston up

Lil Dog 04-04-2011 06:08 PM

The shutoff solenoid is also part of the timing equation (along with what Tate said about WOT start) With the VE pump the fuel solenoid opens on ign before you hit the starter. The P Pump needs the starter to engage before it pulls the lever.

fast59 04-04-2011 11:12 PM

I took notice of a couple that came through my shop today and they all started about the same so i wont worry about it.Thanks for the help much appreciated.

lgp9999 04-05-2011 12:01 AM

This is odd. Granted I give my truck a bit of fuel to start (it turns over quite a bit otherwise), but it fires on 1st piston stroke.

RichN 04-05-2011 09:39 AM

I don't give it any throttle, even when it's 30 degrees outside. I just wait for the grid heater to shut off. My truck starts right up, seems the starter barley engages before the truck is running.

infidel 04-05-2011 09:52 AM

I've found if you want an instant start it's a simple choice between giving it a little throttle or increasing the idle.
Seems like many people are spoiled by modern vehicles that involve no thinking but the 12 valve injection pump is WWII technology that doesn't adjust via computer into a start mode.
I prefer thinking for myself rather than letting a computer do it for me, that's why I own 12 valves.

fast59 04-06-2011 06:28 PM

Yes i can agree to that infidel that's why my newest vehicle i own is a 1991.


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