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93 wont start, please help! Timing, spark, fuel, everything is good, still wont fire

1.9K views 5 replies 3 participants last post by  Snipersc  
#1 ·
Hey there guys, I got a real brain teaser here. Iv been working on my 93 DE motor for the past 2 weeks. When I bought the car 2 weeks ago and it ran perfect. The only thing was that there was coolant in the oil. I had the dealer change the oil and i drove it home 35 miles in 85 degree heat with no issues what so ever. Since i had a head gasket kit at home, i thought i could just do a weekend head gasket replacement and everything would be peachy.


I removed the head and took it out to get it resurfaced. The machinist said it was warped pritty good and he had to take off a lot of material but it was all good to go now. I reinstalled the head, torqued it down in the right order with a torque wrench. I reinstalled the cams and all the timing marks line up. Everything was also done with #1 at TDC. I used a new intake manifold gasket at the head and used silicone in the middle. All the Vac lines seem to be in order, I removed the 2 EGR valves on the manifold as the EGR pipe was no good. I also plugged the swirl control valve vac line. The car has new plugs, wires, cap and rotor. It also has a brand new coolant temp sensor.


The ignition timing is right at 20 degrees and at TDC, the cams are right where they need to be, exhaust cam at 12 o’clock and the intake at about 10. The car only cranks over with a back fire every now and then. Are both the cam and crank sensors in the distributer? What else controls when the injectors fire? At first I also mixed up the fuel feed and return lines and I was feeding fuel right to the regulator, did I mess it up? Any other issues or ideas? I am really stumped on this one... my weekend head gasket project turned into a 2 week nightmare. :tears
 
#2 ·
I've reversed the fuel lines before, and it didn't harm anything. This is probably unrelated with it not starting, but think what you're doing to your cam if all the warp is taken out of a head with machining only. Better machine shops put aluminum heads in a oven and while they're still hot take most of the warp out with hydraulic rams, then machine out whats left. If you've got a head with .020 in. warp in it and you take it all out by maching it, you've got your cam gallries out of alignment and it'll wear the cam bearings out soon. Someone may make offset bearings to go in the head to correct this but I haven't seen any.
 
#3 · (Edited)
Check out this photo, is my timing off on both cams by 1 tooth ?


Motor is at TDC

Image



One tooth to the left and the timing marks will be in the center of the two silver links with JAPAN on them. Are those links intended for timing the car? Another thing too is that this is after cranking the car over and over, and that is also probably why there not lined up now, what do you guys think?
 
#4 ·
Well after messing with the timing, the car is running strong!!, weird :jumpjoy Anyone want to buy a 93 with a new head gasket, thermostat, plugs, wires, cap, rotor, coolant temp sensor? :dancingna
 
#6 ·
pritty much I guess. I have another '90 hb swap project that is 90% done so I think im just going to sell this car and finish my swap. I wanted to keep the car as I need a daily driver but I also don’t have space in my garage to park it, it already got hated on with eggs when it was parking outside for only 2 days Stupid Haters :crazyrant :mad: I also know that if i keep this car, ill start dumping $$$ into it as i keeping thinking of ways to make the handle the local touge better.