Discussion in 'Builds and Fabricators Forum' started by jbrucru, Feb 17, 2012.
They're never quick!
Good to see your back at it. Have really enjoyed watching this build. Looking forward to seeing it running . You are doing a great job, keep at it.
This is my long water pump set up compared to the serpentine belt set up. If it was me? I'd go with the Serpentine set up so you can add power steering.
I have a running 1995 Vortec 4.3ltr V-6 in my Jeep. I think I can help you. 95 is kind of a bad year. It was the year when the switch from OBD1 to OBD2 computers. Do you know which system you have? I never looked into getting a wiring harness. I used everything from a running S-10 truck.
As for your question about VSS? It runs more efficient if you have one. The computer needs to know if you are driving down the road. I got mine from Howell Engine Developments Inc. http://howellefi.com/
Hey all. Thanks for the support! Scott- I followed your conversion. Nice job! I have the obd1 system, and did purchase a vss from Novak. I discovered even with my headers I still need to reroute my steering, so that's my next step. Also the mounting plate on the headers interferes with the knock sensor and the temp sensor on the drivers side. I can move the temp to the knock's place and can put a plug in the partially covered temp hole. May need to delete one knock sensor. I'll hit you up when I get closer to firing things up!
You will need a code scanner to read the codes on that motor. I found one that will do that. After hours of online searching. There is only one that will work. Let me know when you get to that point.
Breaking News: I uncovered the Jeep today from the stuff that has accumulated over the past few months. I'm doing some serious reconsidering on the 4.3. May drop in a rebuilt carbureted 305 or 350 and be done with it (that's what it had before…and the firewall is already notched.) We're expecting our 1st child in February…so that is giving me some motivation. Something tells me if I don't get this knocked out quick….it's going to drag out for a very long time…(longer than it has already).
You shouldn't give up yet. How far along are you? Still having problems with that knock senor.
Well….I'm not that far. Things are bolted up, but it sure wouldn't take much to move the engine mounts back to where they were. I got those fender well headers. On one side, they cover the knock sensor hole, on the other side, they are so far over that I will have to notch the inside of the nice, intact fender. Not to mention the steering issues. I'm going to have to be creative with the steering ask the shaft would have to run through the motor mount, or put in some u-joints. Also - an ear sheared off the block on one the of mount screws - so one side only has 2 bolts holding it up. Also I did a whole lot of splicing on the engine harness and still don't know if it will work (they cut the harness off at the firewall and I went back and got the pieces and found a pin diagram for the computer.) The 305 fit pretty good - and I have all the parts I need to make it run. That's what I'm leaning towards. At this point I'm just longing for the simplicity and ease of a carbureted engine...
Just struck a deal on a 305 to drop back in. It's basically a crate engine...plug and play. Pick it up Friday and will probably drop it in.
Got the other engine out yesterday and am going to attempt to get the 305 in today. I still have all the accessories from the old 305, so shouldn't be too bad! Worst part for me is lining up the transmission with the engine so that the input shaft slides in. I hate that part.
Correction....I despise this part.
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Today was an epic fail. Even with help (experienced help) I couldn't get the input shaft lined up with the engine. No matter what we've tried...it just won't line up. Tried with the engine swinging free first. Then mounted the engine and unbolted the crossmember and tried with a transmission jack. Still no dice. It'll have to wait until another day...and when I can move my back again. Ouch.
Every time I work on some things, something like what you described happens.
After you used up all of the foul language you have, give up for the day, on the first attempt tomorrow the instalation will work fine. I don't claim how the Zen of auto mechanics works sometimes.
From looking at your pic, it may line up better if you take off the starter.
Presuming you have the correct pilot bushing for the T-90J shaft and you installed the clutch with an alignment tool, I would then make me two or three guide bolts. Bolts will be threaded into block with two at the top and are about 4 inches long with the heads removed. I also put one at the bottom. These guide bolts are so much help that the assy can be done without any help. After it goes together I install two correct assy bolts near the top and remove the guide bolts with vise-grips.
Now….for today's "I'm an idiot" post…
I have the correct pilot bushing. As it turns out, the input shaft off my old t90c was smaller than the input shaft on the t90j (should have looked at the Novak site closer…). Smaller as in diameter, not simply length. T90c is 15/16, and T90j is 1-1/8. That's new information for me, and I never bothered to measure. The clutch was for that smaller shaft. No wonder it wouldn't fit. So now I need to get a clutch with the proper input size. Duh.
(Cue the sound of money flushing down the toilet)
I should re-title this build to "Rookie's what not to do build."
Glad to see you are still at it. You are getting close, set backs do get annoying but when ever you take the first jeep ride out after repair/restore/ or upgrades it makes it worth while.
Woohoo for correct parts. Worked on it a bit more tonight and made a lot of progress. The 305 is mounted and the drivetrain is ready to go. I'm going to see what I can do about the radiator as I would like to push forward a bit and try the Taurus fan idea I've read about. We'll see. All the old 305 parts bolted right up, and I have a rebuilt carb and new HEI that will go on soon. It appears that I'll even be able to reuse my existing exhaust system - which I am thrilled about. I'm excited about firing it up and hearing my jeep with a running engine after 2 years of sitting! I'm on a blitz trying to get as far as I can before our daughter is born.
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I took a little trip to a local salvage yard on my lunch break and snagged a gas tank out of a 1980 cj7. I bought one 2 years ago at the beginning of the rebuild. In the process, I snapped the return port off, and also discovered its one of those 77-78 or somewhere in that time where the filler nozzle is basically unobtanium. This one will be much easier to deal with.
I also installed the rebuilt quadrajet I had on the old 305, and put in the new HEI I also had for the old engine. Then I used what I could of the old exhaust, but will have to go to a shop to maneuver around the rear tank.
Next stop...radiator and fan, and revisiting the brake lines. Then I should be ready for paint. I also need correct length drive shafts now that things have been shifted back to their normal spot.
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