Engine stalling in gear?

[custom442]

if you did then how do you have the problems as you described in this thread?......you can't beak in a cam by just letting it idle...

What are you saying man? I broke in the engine last week, 20 min at 1800-2200. Then another 10 min of the same. Then a few slow revs to 3 grand and that's it. What does the engine stalling when I put it in drive have to do with breaking in the cam? It was a timing and carb tuning issue

 

[pontiacgp]

:?

 

[custom442]

if you did then how do you have the problems as you described in this thread?......you can't beak in a cam by just letting it idle...

What are you saying man? I broke in the engine last week, 20 min at 1800-2200. Then another 10 min of the same. Then a few slow revs to 3 grand and that's it. What does the engine stalling when I put it in drive have to do with breaking in the cam? It was a timing and carb tuning issue

because in your first post you said this...

I've cranked up the idle at park/neutral to 1500-1600 rpms now and it does the same thing.

and you say it's time for your first oil change?....didn't you use break in oil which is dumped right after the break in period....

Right I had the idle set at 1000 but it stalled going into gear so I thought I'd try turning up the curb idle, turns out it was a timing thing instead

The first oil change should ideally be after the break in period. But I'm not an idealist. An extra 30 min engine run time won't hurt anything. And no, it's not necessary to use break in oil, it's just 10W30.

If I was using synthetic then yes I would use break in oil or if I wanted to unload my pockets on something that's not needed I'd do so too

 

[foxtrot]

pontiacgp,

I've install a few engines(as a weekend warrior) over the past twenty years and have always followed the break-in procedure that you mention including the priming. Can you explain the physics behind the break-in? Why is it so important to run the engine at ~2k rpms for twenty mins during break-in?

Thanks.

 

[custom442]

The break in process is for seating piston rings. If you have a roller cam like mine it requires no break in procedure.

 

[pontiacgp]

:?

 

[foxtrot]

Thanks -- I've always performed the break-in but just wanted to understand the reason..

 

[pontiacgp]

each manufacturer has different break in procedures but 20 minutes is usually the norm. I know some engine builders have lighter valve spring they use to break it in but unless your using a double spring or a real heavy spring I don't see a need for a light spring....in the case of a double spring tho the inner spring is usually removed as per the recommendations of the manufacturer..

 

[custom442]

pontiacgp-

I called patriot heads and the guys I bought the heads from at white performance a few months ago, told them what was going on the engine (roller cam and roller rockers) and they said it wasn't necessary to remove the inner spring on startup. They said they even don't remove it on their builds either, but I was concerned about it since it's stated everywhere in books and people say it. You think it was because I wasn't using regular rockers or flat tap. cam?

 

[pontiacgp]

:?