Trouble starting stroker.

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Defcon92
Making Progress
Making Progress
Posts: 84
Joined: January 8th, 2014, 6:35 pm
Stroker Displacement: 4.2l
Vehicle Year: 1992
Vehicle Make: Jeep

Re: Trouble starting stroker.

Post by Defcon92 »

Cheromaniac wrote:One thing we haven't mentioned is the cam position sensor and a bad one can cause the symptoms you're describing.

It is new. But I'll install the old one. 1 thing to note is I have the CPS advanced 6* like Chris did by moving it over? Ill See if that'll help me or not. Still need to try the ecu swap as well.
Defcon92
Making Progress
Making Progress
Posts: 84
Joined: January 8th, 2014, 6:35 pm
Stroker Displacement: 4.2l
Vehicle Year: 1992
Vehicle Make: Jeep

Re: Trouble starting stroker.

Post by Defcon92 »

Well shit even a new CPS can shit out I guess. We drilled a hole and moved it exactly like Chris did on his CPS for 6* timing advance.

So old sensor in and she runs fine. Now 2-3000rpm for 30 minutes right guys?
Defcon92
Making Progress
Making Progress
Posts: 84
Joined: January 8th, 2014, 6:35 pm
Stroker Displacement: 4.2l
Vehicle Year: 1992
Vehicle Make: Jeep

Re: Trouble starting stroker.

Post by Defcon92 »

Success! 30w sae brad penn & a comp cam break in additive. 30 minutes exactly, ranging from 2000-2750 rpm. Couple quick blips to 3000rpm or so at the end. Manual Oil pressure mounted by the oil filter never read below 35+psi except for the last 5-7minutes where it dropped to 25psi or so. Guessing that sounds good? I kinda was expecting a bit more on a fresh engine but maybe that's just me. New stock oil pump ect. Nothing reused.

Never got above 210. The small electrical fan was going after about 10+ minutes in. Was hearing some slight missing through the exhaust in the last 5-7 minutes or so. It's pretty much open header, dumps just below the tranny cause I haven't finished the downpipe yet.
And I wanted to to note, my banks 6-1 revolver with ceramic coated appeared to last through the break in. Looks identical to before with no flaking or peeling of the coating :cheers:

Going to give it an hour or so to cool down. Then I'll pull the plugs and do an oil change. It's got a magnetic drain plug that'll hold a 22oz hammer so I'm curious to see what I'll have on it in the first few thousand miles!
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