My YJ LT1 build - Page 33 - JeepForum.com

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post #481 of 1295 Old 07-17-2011, 08:39 PM
jth0033
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1987 YJ Wrangler 
 
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Location: Downingtown
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Can't wait to hear the beast run! Very exciting man

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post #482 of 1295 Old 07-17-2011, 09:30 PM
goAF
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Moral dilemma--loving this build thread but... You're a t-sip?! Sigh...

Gig'em!
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post #483 of 1295 Old 07-18-2011, 12:59 PM
shoreline
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Quote:
VATS has been defeated !!!
Yeeha! I hope you remember the procedure as I am lagging behind and will be asking you questions soon...well, maybe by xmas anyway.
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post #484 of 1295 Old 07-18-2011, 06:34 PM Thread Starter
mavrick331
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Quote:
Originally Posted by goAF View Post
Moral dilemma--loving this build thread but... You're a t-sip?! Sigh...

Gig'em!

Don't make start w/ aggie jokes...

Rick

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87' YJ, Corvette LT1, Corvette 4L60e, NP241c, Ford 8.8 rear, 4.11, Duratrac 33's

11' JK 4-door, 2.5" Pro Comp, Blisteins, 4.88's. ,BFG 33's

03' Chevy 2500 Crew Cab 4x4

73' Corvette convertible, 4-speed

11' Cadillac CTS-V

My Wife has her Tahoe...
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post #485 of 1295 Old 07-18-2011, 08:05 PM Thread Starter
mavrick331
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Join Date: Sep 2009
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Quote:
Originally Posted by Gearhead231 View Post
OMG!@!!!!@!@#$@#$ That video just made my day for sure. You think itll fire up by next weekend?

My thoughts exactly!!

I still have some more wiring issues to work out, the dash harness is from a M/T tranny, so I have to check to see if I need any thing more for the auto tranny and also wire in the VSS. I also have to finish locating all the fuel delivery wiring and figure out where the fuel pump relay goes, and wire back to the fuel pump.

To do this, I need to pull the tub. I'm thinking about building a temporary wooden platform to straddle the top side of the frame to hold the column, and dash harness, then i get to fire this beast up!!

I have a plan

Rick

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87' YJ, Corvette LT1, Corvette 4L60e, NP241c, Ford 8.8 rear, 4.11, Duratrac 33's

11' JK 4-door, 2.5" Pro Comp, Blisteins, 4.88's. ,BFG 33's

03' Chevy 2500 Crew Cab 4x4

73' Corvette convertible, 4-speed

11' Cadillac CTS-V

My Wife has her Tahoe...
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post #486 of 1295 Old 07-19-2011, 05:47 PM Thread Starter
mavrick331
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Join Date: Sep 2009
Location: San Antonio
Posts: 591
Quote:
Originally Posted by shoreline View Post
Yeeha! I hope you remember the procedure as I am lagging behind and will be asking you questions soon...well, maybe by xmas anyway.
I got it, it's not that bad, probably because I'm using a vette dash harness as well...I'll print up and save some of the wiring diagrams for you. What year is the LT1 you have? The PCM on one of your posts looks different from mine.

Also, get me a picture of the C3 vette hiding under the cover across the street... looks like a 73 to 75 model...

Rick

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87' YJ, Corvette LT1, Corvette 4L60e, NP241c, Ford 8.8 rear, 4.11, Duratrac 33's

11' JK 4-door, 2.5" Pro Comp, Blisteins, 4.88's. ,BFG 33's

03' Chevy 2500 Crew Cab 4x4

73' Corvette convertible, 4-speed

11' Cadillac CTS-V

My Wife has her Tahoe...
mavrick331 is offline  
post #487 of 1295 Old 07-21-2011, 06:24 PM Thread Starter
mavrick331
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Join Date: Sep 2009
Location: San Antonio
Posts: 591
I got to do some prep work before the weekend, pulled the fenders and the tub back off, took all of 20 minutes ......getting good at it pulling the tub

My goal this weekend is to get fuel pumping to the injectors, and see if I can fire it up. I still have doubts that I got the opti-spark distributor assembled correctly...


Rick

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87' YJ, Corvette LT1, Corvette 4L60e, NP241c, Ford 8.8 rear, 4.11, Duratrac 33's

11' JK 4-door, 2.5" Pro Comp, Blisteins, 4.88's. ,BFG 33's

03' Chevy 2500 Crew Cab 4x4

73' Corvette convertible, 4-speed

11' Cadillac CTS-V

My Wife has her Tahoe...
mavrick331 is offline  
post #488 of 1295 Old 07-23-2011, 06:48 PM Thread Starter
mavrick331
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Location: San Antonio
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Ran my fuel pump wiring in the frame, seemed a logical choice. I reconnected all my dash wiring & steering column on my fancy "work bench" and spliced in the fuel power and gauge wires. Not sure yet the fuel gauge works, but note the gas can on the front drivers side tire, it had fuel in it after 5 seconds of cranking

I plan the to get the "corveep" ( what my baby girl named it) running as it sits.


Rick

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87' YJ, Corvette LT1, Corvette 4L60e, NP241c, Ford 8.8 rear, 4.11, Duratrac 33's

11' JK 4-door, 2.5" Pro Comp, Blisteins, 4.88's. ,BFG 33's

03' Chevy 2500 Crew Cab 4x4

73' Corvette convertible, 4-speed

11' Cadillac CTS-V

My Wife has her Tahoe...
mavrick331 is offline  
post #489 of 1295 Old 07-23-2011, 06:55 PM
soonermatt
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Quote:
Originally Posted by mavrick331
Ran my fuel pump wiring in the frame, seemed a logical choice. I reconnected all my dash wiring & steering column on my fancy "work bench" and spliced in the fuel power and gauge wires. Not sure yet the fuel gauge works, but note the gas can on the front drivers side tire, it had fuel in it after 5 seconds of cranking

I plan the to get the "corveep" ( what my baby girl named it) running as it sits.
I liked the orange paint in the garage. I was curious if I could get away with that being an OU employee. Then I noticed your 'Hook em' tag and realized the orange was more than a trendy shop color.

Oh well. It looks good anyway.
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post #490 of 1295 Old 07-23-2011, 07:38 PM Thread Starter
mavrick331
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Quote:
Originally Posted by soonermatt View Post
I liked the orange paint in the garage. I was curious if I could get away with that being an OU employee. Then I noticed your 'Hook em' tag and realized the orange was more than a trendy shop color.

Oh well. It looks good anyway.
The color is actually between Chevy orange and Burnt orange, but as a OU employee, I would choose a different shade, for career longevity..

Hook-um!! ( sorry, had to)

Rick

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87' YJ, Corvette LT1, Corvette 4L60e, NP241c, Ford 8.8 rear, 4.11, Duratrac 33's

11' JK 4-door, 2.5" Pro Comp, Blisteins, 4.88's. ,BFG 33's

03' Chevy 2500 Crew Cab 4x4

73' Corvette convertible, 4-speed

11' Cadillac CTS-V

My Wife has her Tahoe...
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post #491 of 1295 Old 07-23-2011, 08:53 PM
Xerxes
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wow......... just went through most of this thread........... damn........

I love the beer hunt too

Originally Posted by melk:
"Either more or less lube may change the moaning!"

|::Sahara Owner::|
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post #492 of 1295 Old 07-24-2011, 05:38 PM Thread Starter
mavrick331
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I took off the last 2 days of next week to continue on the project and clean up the backyard today....guess our Yorkie is just gonna have to live with the grass over his head

I temped in my fuel lines, betting it would not start (expected) thinking my opti-spark distributor was installed wrong, turned the key and....................no joy

After a little troubleshooting, I found the following out:

The stock Jeep fuel filter location on the frame rail leaked like the Titanic, so I relocated it to the stock vette location, just before the fuel rail.

The local parts houses don't know squat about fuel injection..I feel like a pro compared to them, and I rate my knowledge at a "2" from 1 to 10.

I have fuel pumping from the fuel tank, through the fuel rail and back to the fuel tank.

I have dry spark plugs.

I have voltage to the fuel injectors.

I have spark, I know because I still feel it in my hand...

My new fuel pressure gauge does not move, no pressure.

Not sure yet the leaks at the filter were causing my no pressure reading, seems I should have read something.

Questions ??

Do I need to have a minimum pressure to pass through the injectors?
What part does the regulator play? it is on the output side of the fuel rail.
The fuel tank is stock Jeep and has a vent line, does this need to be capped?

It's beer thirty..

Rick

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87' YJ, Corvette LT1, Corvette 4L60e, NP241c, Ford 8.8 rear, 4.11, Duratrac 33's

11' JK 4-door, 2.5" Pro Comp, Blisteins, 4.88's. ,BFG 33's

03' Chevy 2500 Crew Cab 4x4

73' Corvette convertible, 4-speed

11' Cadillac CTS-V

My Wife has her Tahoe...
mavrick331 is offline  
post #493 of 1295 Old 07-24-2011, 06:12 PM
dodger889
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Quote:
Originally Posted by mavrick331 View Post
I took off the last 2 days of next week to continue on the project and clean up the backyard today....guess our Yorkie is just gonna have to live with the grass over his head

I temped in my fuel lines, betting it would not start (expected) thinking my opti-spark distributor was installed wrong, turned the key and....................no joy

After a little troubleshooting, I found the following out:

The stock Jeep fuel filter location on the frame rail leaked like the Titanic, so I relocated it to the stock vette location, just before the fuel rail.

The local parts houses don't know squat about fuel injection..I feel like a pro compared to them, and I rate my knowledge at a "2" from 1 to 10.

I have fuel pumping from the fuel tank, through the fuel rail and back to the fuel tank.

I have dry spark plugs.

I have voltage to the fuel injectors.

I have spark, I know because I still feel it in my hand...

My new fuel pressure gauge does not move, no pressure.

Not sure yet the leaks at the filter were causing my no pressure reading, seems I should have read something.

Questions ??

Do I need to have a minimum pressure to pass through the injectors?
What part does the regulator play? it is on the output side of the fuel rail.
The fuel tank is stock Jeep and has a vent line, does this need to be capped?

It's beer thirty..
Yes it should have some sorta pressure. if it still a jeep engine it should be 42PSI on latter GM engines depends on what the pressure should be???? some where low pressure system others where much higher.

A 89 yj with a 4.0 aw4 sye out of an 92xj. Now the hard part is done time to get it up in the air just a bit. Working on 8.8 with 3.73 and lsd for the rear. and new D30 hp with 3.73 .
For those who have not figured this out I'm old school but can handle the new too.
Quote:
Originally Posted by bigsquat View Post
im just cheap, and cheap makes you creative.
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post #494 of 1295 Old 07-24-2011, 08:29 PM
cooltoolguy
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Posts: 40
not sure how long your lt 1 has been sitting, but they are known for the injectors sticking closed, mine sat for 3 yrs before i put it in my c-10 but i took them out and cleaned them 1st and still had one stick, fixed it with a sharp tap from a ball peen hammer but for all 8 to stick hmmm? do you have your oil pressure sending unit hooked to the pcm? it has to show i think 3-5 psi to pcm for it to start.

2001 tj sahara, 2002 liberty renegade
1995 yj soon to get LT-1
1988 YJ laredo with 4.0 swap and western plow
2003 GMC CC D/A Dually (daily driver) , 2003 Kawasaki ZX12R
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post #495 of 1295 Old 07-24-2011, 08:46 PM
5.7YJ
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Posts: 912
I had to replace my injectors also. As soon as the new/cleaned ones were in it fired on the first turn of the key. The guy at Painless Performance said if the injectors sit for just a short time, they can freeze up.
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