Remind me of procedure for priming before starting please.

[Buddy]

So I read somewhere on a thread - cannot find it again - about a procedure people were doing before actually starting if their truck sat for a bit. I had never heard about it until it was mentioned on said thread.
- push gas pedal to floor, then push (start) button to floor for 5 seconds? Or push it a few times??? Release button, take foot of gas. Start usual way.
Is this correct? Hold button for 5 sec?
What about for folks with a key still and not push button start?

Thank you everyone! I like this idea alot for if the truck has sat for a bit of time.

 

[British Bulldog]

I do this after my truck sits also. Helps get that oil up there.
All you do is treat it like a flooded engine. Accelerator all the way to floor, crank( it won’t start) for a while.
Release pedal, crank/start as normal. No rattle from dry engine……..
That’s MY routine, others may do different.

 

[HEMIMANN]

I do priming when I haven't run truck in more than a day. I also shut off @ 1,000 rpm instead of their stupid too-low idle of 650 rpm. Std. low idle always was 750 rpm. They dropped it to 'save gas' on an engine that is oil-starved. Genius!

Anyway, depress gas pedal to floor and hold.
Depress brake pedal and hold.
Push start button.
Engine will crank, but not start.
Crank for 10-15 seconds, no longer or starter motor windings will overheat and melt.
Release brake pedal, press start button to stop cranking.
Let cool down for 10-15 seconds.
I do this twice to insure oil gets past oil filter to engine gallys.

When done, stop depressing gas pedal.
Depress brake pedal and push start button.
Engine will start with oil in the gallys!

Note - during cranking you can't see oil pressure sender or EVIC oil pressure.
Cranking shuts down other circuits so there is no indication when oil gets to oil pressure sensor. Which is why I prime twice as an insurance measure.

 

[Buddy]

Thank you very much!!
Trucks been sitting almost a month. Been driving car. Truck is on a battery tender, so thats taken care of. Wanna give it all the love I can, lol. Don't see myself ponying up for a new ride. Prices crazy, potential tariff stupidity, and manufacturers seem to purposely being absent on quality and care of anything new it seems. Make it last!

 

[HEMIMANN]

Thank you very much!!
Trucks been sitting almost a month. Been driving car. Truck is on a battery tender, so thats taken care of. Wanna give it all the love I can, lol. Don't see myself ponying up for a new ride. Prices crazy, potential tariff stupidity, and manufacturers seem to purposely being absent on quality and care of anything new it seems. Make it last!

What about your gas? Do you have stablizer in it?

 

[Wild one]

What about your gas? Do you have stablizer in it?

If you can hold off on buying gas for another week,April 15th is when they usually switch over to summer fuel,at least it's that date up here north of the border.

 

[HEMIMANN]

If you can hold off on buying gas for another week,April 15th is when they usually switch over to summer fuel,at least it's that date up here north of the border.

What's the usual pipe supply lead? 2 weeks? Does CA legislate it like USA does (probably soon to be rescinded)?
USA EPA mandated the dates to lower VOA loss from pumps. They tried mandating vapor recorver pump nozzles everywhere, but that got stopped.

I know higher RVP gas used to be needed to prevent vapor lock back when dinos ruled the earth and lift pumps were on the engines, but today?

 

[Wild one]

In Alberta, gas stations are mandated to switch to summer-grade fuel by April 15th.

Here's a more detailed explanation:

• Mandatory Switchover:
  Canada requires all gas stations to switch to the summer fuel blend each year by April 15th.
  
  
• Why the Switch?
  The switch to summer fuel is necessary because gasoline sold in the summer must have a lower Reid Vapor Pressure (RVP) number, which is a measure of how quickly the gas evaporates when burned as fuel.
  
  
• RVP and Emissions:
  Lower RVP helps reduce emissions in the summer, as gasoline with a higher RVP evaporates more quickly in hot weather, contributing to more carbon emissions.
  
  
• Timing:
  The transition from winter to summer gas blends in Canada and the U.S. are generally in sync, as refineries in one country can serve both markets.
  
  
• Price Impact:
  The switch to summer fuel can lead to a price increase at the pump.
  
  
• Winter Fuel:
  Conversely, gas stations are required to switch back to winter-grade fuel by September 15th.

 

[HEMIMANN]

Thanks.

I can't hold off for another week. We're going to the deer shack this weekend in the neighboring state that doesn't mandate alcohol gas, and I need to fill the 14 gal gas caddy with pure gas 87 octane for the year.

I haven't had an issue with vapor lock on them. It's essential for me not to have alcohol in these little engines, and no high octane either - leaves deposits from incomplete combustion in low C.R. engines.
The 2 strokes take higher octane pure gas, though.
What a fuched up state.

 

[Buddy]

Not that it matters much, but my last fillup, from maybe just below 3/4, the gas station ran out of 87 and 89. So got 91 for reg price. Didn't mean to not drive the truck so long, just waiting for winter to go away completely. I didn't add Stabil, but when I drive it again, soon, I will add a bottle of Redline SL1 at the next fillup.

 

[Curmudgeon]

What's the usual pipe supply lead? 2 weeks? Does CA legislate it like USA does (probably soon to be rescinded)?
USA EPA mandated the dates to lower VOA loss from pumps. They tried mandating vapor recorver pump nozzles everywhere, but that got stopped.

I know higher RVP gas used to be needed to prevent vapor lock back when dinos ruled the earth and lift pumps were on the engines, but today?

The map in this link ought to help throughout the US...
https://www.eia.gov/todayinenergy/detail.php?id=11031

 

[alpinegreenneon]

When I think of priming, turn the key to ON, listen for the fuel pump hum building up pressure, back to OFF, repeat and then start. When a vehicle sits, fuel pressure bleeds off. The faster the engine gets up to normal rpms, the quicker oil is back where it belongs.

 

[HEMIMANN]

The map in this link ought to help throughout the US...
https://www.eia.gov/todayinenergy/detail.php?id=11031

Why, thank you!

May 1 is latest switchover date for refiners and terminals in most of USA.
June 1 is latest switchover date for retailers (pumps), up to Sept. 15, for most of USA. That's only 3-1/2 months.

I presume the dates of the color regions on the USA map are the same but even lower RVP's, as they have the highest population densities.

That is very weird why USA is 2 weeks lagging CA. Maybe CA is warmer than USA, now.

 

[Dodge 1500 4X4]

The procedure is called Clear Flood mode, great write up on here!

 

[Buddy]

This information should be a sticky, I think it's great to have this info for owners, preventative maintanence almost.

 

[HEMIMANN]

IDK, we do it every drive it's like 2nd nature for these engines. I don't even have to think about it anymore.

 

[Wild one]

IDK, we do it every drive it's like 2nd nature for these engines. I don't even have to think about it anymore.

Yea i don't really agree with that theory Brian,you're better off starting it,as it builds oil pressure faster,pretty well any engine builder will tell you that.
If you're that worried buy a pre-oiler instead of spinning it over on the starter.

Accusump™ - Oil Accumulator - Accusump™ Units - Canton Racing Products

www.cantonracingproducts.com

 

[HEMIMANN]

Yea i don't really agree with that theory Brian,you're better off starting it,as it builds oil pressure faster,pretty well any engine builder will tell you that.
If you're that worried buy a pre-oiler instead of spinning it over on the starter.

Accusump™ - Oil Accumulator - Accusump™ Units - Canton Racing Products

www.cantonracingproducts.com

Not going through all that.
Low speed cranking without combustion is plenty good enough. IF this weren't available, then I would schedule such a project. At present, installing new fencing before the bugs come out.
Then on to catch cans.

 

[Kraken]

In Alberta, gas stations are mandated to switch to summer-grade fuel by April 15th.

Here's a more detailed explanation:

• Mandatory Switchover:
  Canada requires all gas stations to switch to the summer fuel blend each year by April 15th.
  
  
• Why the Switch?
  The switch to summer fuel is necessary because gasoline sold in the summer must have a lower Reid Vapor Pressure (RVP) number, which is a measure of how quickly the gas evaporates when burned as fuel.
  
  
• RVP and Emissions:
  Lower RVP helps reduce emissions in the summer, as gasoline with a higher RVP evaporates more quickly in hot weather, contributing to more carbon emissions.
  
  
• Timing:
  The transition from winter to summer gas blends in Canada and the U.S. are generally in sync, as refineries in one country can serve both markets.
  
  
• Price Impact:
  The switch to summer fuel can lead to a price increase at the pump.
  
  
• Winter Fuel:
  Conversely, gas stations are required to switch back to winter-grade fuel by September 15th.

I've always wanted to ask, but never encountered anyone who sounded like they knew why. You happen to know when the winter/summer blends became a thing? What was the reason for a change.. like what problem did it allegedly solve? Is it just another thing related to the burning efficiency or is there actual beneficial science behind it?

 

[Wild one]

I've always wanted to ask, but never encountered anyone who sounded like they knew why. You happen to know when the winter/summer blends became a thing? What was the reason for a change.. like what problem did it allegedly solve? Is it just another thing related to the burning efficiency or is there actual beneficial science behind it?

Clic on the link in post #11