TBI 350 help - Page 2 - JeepForum.com
Search  
Sign Up   Today's Posts
User: Pass: Remember?
Advertise Here
Jeep Home Jeep Forum Jeep Classifieds Jeep Registry JeepSpace Jeep Reviews Jeep Gallery Jeep Clubs Jeep Groups Jeep Videos Jeep Events Jeep Articles
Go Back JeepForum.com > Models > Jeep CJ Forum > TBI 350 help

SPARTAN LOCKERS are on sale BIG TIME at ROCKRIDGE 4WD!Introducing MONSTALINER™ UV Permanent DIY Roll On Bed LineG2 Disc Brake Conversion Kit for Jeep Wrangler YJ TJ LJ Ch

Reply
Unread 05-19-2014, 04:46 AM   #16
gmakra
Registered User
1985 CJ7 
 
Join Date: Jun 2008
Location: Chicago area
Posts: 2,777
Seems to me you might want to rebuild your fuel pressure regulator with pressures bouncing around like you say.

gmakra is online now   Reply With Quote
Unread 05-19-2014, 06:24 AM   #17
Mike Romain
Registered User
1986 CJ7 
 
Join Date: Nov 2007
Location: Off the Grid in Chester Grant, Nova Scotia, Canada
Posts: 13,125
Quote:
Originally Posted by Sportinwood View Post
Scratch that it's 1/4" supply and 3/8" return line.
Umm, that is a really tiny gas line. Are you sure it isn't 3/8" line and 1/4" return? That is what my CJ has.
__________________
Mike
86/00 CJ7 Laredo, 33x9.5 BFG AT's, 'glass nose to tail in '00, 'New' frame,wires and plumbing in '09. Carter BBD Carbed 4.0 HO in '10.
89 YJ Renegade. BBD Carbed 4.0 HO. Locked front and rear with 33x9.5 BFG AT's
Some Canadian Bush Jeep Runs and Build Photos: http://mikeromainjeeptrips.shutterfly.com (10 new albums added Sept 16/10)
Mike Romain is offline   Reply With Quote
Unread 05-19-2014, 06:28 AM   #18
Sportinwood
Registered User
1985 CJ7 
 
Join Date: May 2010
Location: Utah
Posts: 123
I have rebuilt my tbi twice already. Once when I first bout it and then I got into it againto replace an injector so my regulator should be good. But if I can't fix it with a new pump I'll get back into it again. Thanks for the suggestion. Thanks Dave I'll probably go that route. I'm a firm believer in using as many stock and easily accessible parts as possible. I guess it's a good time to upgrade to the 21gallon tank. LOL
Sportinwood is offline   Reply With Quote
Unread 05-19-2014, 07:11 AM   #19
Sportinwood
Registered User
1985 CJ7 
 
Join Date: May 2010
Location: Utah
Posts: 123
Quote:
Originally Posted by Mike Romain View Post
Umm, that is a really tiny gas line. Are you sure it isn't 3/8" line and 1/4" return? That is what my CJ has.
I'm kinda going by the picture in my head on that one. Yes you could be right on that. Right now though i just have the rubber fuel line tied into my stock hard lines so I think it is 1/4" supply and 3/8" return at leas from the stock lines up to the tbi. At any rate that'll all change when I do Dave's in tank mod. That gives me another excuse to buy the bigger tank that I'd like to have anyway.
Sportinwood is offline   Reply With Quote
Unread 05-22-2014, 07:48 PM   #20
Sportinwood
Registered User
1985 CJ7 
 
Join Date: May 2010
Location: Utah
Posts: 123
K so just as a follow up and in case anyone was wondering. Out of curiosity and now that I have my computer/fuel pump relay wired in properly I went ahead and put my high pressure pump the E8248 back in and she has never ran better! I'm staying steady at 13 psi from idle to WOT. Idleing very smooth and getting zero lag when I throttle up. She starts every time no matter how hot or cold!
Sportinwood is offline   Reply With Quote
Unread 05-22-2014, 07:51 PM   #21
Sportinwood
Registered User
1985 CJ7 
 
Join Date: May 2010
Location: Utah
Posts: 123
Oh and fuel lines are 3/8" supply and 5/16" return.
Sportinwood is offline   Reply With Quote
Unread 05-22-2014, 08:25 PM   #22
dg6772
Registered User
1986 CJ7 
 
Join Date: Feb 2011
Location: Muskegon, Michigan
Posts: 1,463
Did you wire your pump as the factory did? Via oil pressure? Or did you go a different route?

I added the entire GM emc wiring to my cj. To make it friendly to a mechanic if I have to take it to one.

Dave in Muskegon using JeepForum
dg6772 is offline   Reply With Quote
Unread 05-22-2014, 08:35 PM   #23
Sportinwood
Registered User
1985 CJ7 
 
Join Date: May 2010
Location: Utah
Posts: 123
Yes I used the factory gm wiring harness there were just a few loose ends that didn't tie in directly to the cj. The fuel pump was overlooked while I was trying to sort eveything else out.
Sportinwood is offline   Reply With Quote
Unread 05-22-2014, 08:52 PM   #24
Sportinwood
Registered User
1985 CJ7 
 
Join Date: May 2010
Location: Utah
Posts: 123
Now it's just a matter of straightning out a couple mechanical problems. Rear axle seals are leaking, breaks need bleed again, leaking powersteering pump, ignition switch really sticky, and right Warren hub is locking up on me. Ughhh always something! LOL
Sportinwood is offline   Reply With Quote
Unread 05-22-2014, 10:11 PM   #25
dg6772
Registered User
1986 CJ7 
 
Join Date: Feb 2011
Location: Muskegon, Michigan
Posts: 1,463
My ignition switch is doing that too. ...real bad when its cold out.

Dave in Muskegon using JeepForum
dg6772 is offline   Reply With Quote
Unread 05-23-2014, 06:28 AM   #26
Sportinwood
Registered User
1985 CJ7 
 
Join Date: May 2010
Location: Utah
Posts: 123
There's a rod in the column that gets bent. I'm going to try to beef ot up a little bit. Stronger steel or maybe a bigger diameter.
Sportinwood is offline   Reply With Quote
Unread 05-23-2014, 06:28 AM   #27
scooby533
Registered User
1986 CJ7 
 
Join Date: Oct 2008
Location: Pittsburgh, PA
Posts: 143
What engine mounts did you all use for the 5.7l conversion? I'm pulling the trigger and swapping in a 5.7l/700r4 combo. I've read how some have issues with the front driveshaft clearing the trans pan/casting.

I plan on keeping it TBIed. What problems, other than the fuel pump, were encountered?

Shawn
scooby533 is offline   Reply With Quote
Unread 05-23-2014, 07:49 AM   #28
Sportinwood
Registered User
1985 CJ7 
 
Join Date: May 2010
Location: Utah
Posts: 123
Novak adapters has an engine mount kit that I used.

I had an over heating problem at first. I was using a cheap radiator and an electric fan. After I blew the whole plastic top off the cheap radiator and stranded myself in the mountains I once again called Novak. They were able to send get me all the stuff I needed to fix that problem up in the mountains. They sent me new hoses, clamps, and an all aluminum radiator. That wasn't cheap but well worth it. After I installed the new radiator my alternator fan rubbed a hole in the top radiator hose. So that's something to watch out for. I built a little sheet metal shroud to put over the alternator to avoid that problem again. Once I got it home I was still running hot. I pulled the electric fan off and put the mechanical flex fan back on. Then I changed the thermostat out from a 195* to a 180*. Cooling Issues solved!

Wireing was a pain from the beginning even using the factory gm wiring harness and fuse panel that came with the engine. The hardest part was getting gages, lights, ignition switch tied into that harness. It would have been next to impossible for me at least if I didn't have that harness so make sure tou get it intact with whatever engine you get. There were I'm sure some other small problem that I'm forgetting but those were my main headaches.
Sportinwood is offline   Reply With Quote
Unread 05-23-2014, 08:00 AM   #29
dg6772
Registered User
1986 CJ7 
 
Join Date: Feb 2011
Location: Muskegon, Michigan
Posts: 1,463
I used my cj harness for all the cj stuff and to power the engine harness. Still a pain, but not terrible. It took a friend and me about 1 and 1/2 weeks or so to do it.

Dave in Muskegon using JeepForum
dg6772 is offline   Reply With Quote
Unread 05-23-2014, 08:01 AM   #30
dg6772
Registered User
1986 CJ7 
 
Join Date: Feb 2011
Location: Muskegon, Michigan
Posts: 1,463
Lots of info on binderplanet.com

Dave in Muskegon using JeepForum
dg6772 is offline   Reply With Quote




Jeep, Wrangler, Cherokee, Grand Cherokee, and other models are copyrighted and trademarked to Jeep/Chrysler Corporation. JeepForum.com is not in any way associated with Jeep or the Chrysler Corp.