Official 4.0 swap thread - Page 10 - JeepForum.com
Reply
 
LinkBack Thread Tools
post #136 of 429 Old 08-01-2008, 06:40 PM
Last Boyscout
Registered User
1979 CJ7 
 
Join Date: Jun 2005
Location: Ozark, MO
Posts: 69
Caution using WJ filter/regulator

I went out of my way to find a fuel pump that was a stand alone external. I ended up with the Summit SUM-G3138 ($79.99.) Itís an 85psi max that flows 43gph. When I put my gauge on it Iím getting 90psi. Then I went with a WJ filter/regulator ($29.99) to cut my fuel pressure to stock specs. After running for less than 30 min the filter was only putting 10 psi at the rail. I just figured I got sloppy and didnít clear one of my lines and clogged the filter. So, I replaced it with another WJ (first mistake $29.99.) After installing and checking pressure at the fuel rail witch I was unable to due before the first one died. I realized I had a problem. 60psi at the fuel rail. I had too much pump for the WJ filter/regulator.

Now knowing it was only a matter of time before this one was gutted I started shopping for a pressure regulator. When I say shopping I mean being cheap witch is the reason I went with the WJ filter in the first place. So, $45 later one was on the way from Hong Kong off of eBay. When it gets here I find there is no fuel return. We tried to plumb it in before the WJ filter at 60psi and let the 2 of them bring it down to 40psi. We never got it to 60 at the China piece of junk before the WJ filter (#2) died.

So, we tried to tune the new shinny Hong Kong crap and see if the duty cycle of my Summit pump was high enough (100%) that it didnít need a return. Well itís not.

For those that are keeping score I am at or even past the cost of a Mallory regulator all in the name of being cheap. So, once again the call goes out to Summit for a Mallory regulator MAA-4305M ($99.95.) The moral of the story, being cheap will cost you more in the long run.

If you chose to use the WJ filter/regulator make sure your pump is not pushing to far over stock pump psi.

For what itís worth she ran great for the hour or less she was running. I just donít know if that hour was worth $100.

Last Boyscout is offline  
Sponsored Links
Advertisement
 
post #137 of 429 Old 08-01-2008, 09:43 PM Thread Starter
supraman1990
Registered User
 
supraman1990's Avatar
1980 CJ5 
 
Join Date: Feb 2007
Location: Claremont, NC
Posts: 1,366
You used OBD2 stuff? Poor man. I've got the stock OBD1 regulator holding back my 115 PSI rated Walbro, and it's doing a fine job.

80 CJ5 in the process of a frame up resto
96% complete.
The little stuff will kill me.
On the back burner for college.
supraman1990 is offline  
post #138 of 429 Old 08-02-2008, 09:54 AM
Last Boyscout
Registered User
1979 CJ7 
 
Join Date: Jun 2005
Location: Ozark, MO
Posts: 69
supra, don't throw me a pity party just yet. since you're selling your jeep you won't know if and when the stock regulator fails. chances are it won't fail. but how old is that stock non rebuild able pressure regulator.

i'm just screwing with you.
Last Boyscout is offline  
post #139 of 429 Old 08-02-2008, 01:07 PM Thread Starter
supraman1990
Registered User
 
supraman1990's Avatar
1980 CJ5 
 
Join Date: Feb 2007
Location: Claremont, NC
Posts: 1,366
It's the OE one as far as I know. It is replaceable, they cost around $30. I'm attempting to sell it, but I'm not going to put something on someone else if I don't believe in it.

80 CJ5 in the process of a frame up resto
96% complete.
The little stuff will kill me.
On the back burner for college.
supraman1990 is offline  
post #140 of 429 Old 08-02-2008, 01:25 PM
Last Boyscout
Registered User
1979 CJ7 
 
Join Date: Jun 2005
Location: Ozark, MO
Posts: 69
dude supra, i was just giving you s***. i was not honestly trying to suggest you were or would sell a lemon jeep.
Last Boyscout is offline  
post #141 of 429 Old 08-02-2008, 05:56 PM Thread Starter
supraman1990
Registered User
 
supraman1990's Avatar
1980 CJ5 
 
Join Date: Feb 2007
Location: Claremont, NC
Posts: 1,366
Sorry, can't tell too much sarcasm over the keyboard. However, the OE regulators are VERY strong.

80 CJ5 in the process of a frame up resto
96% complete.
The little stuff will kill me.
On the back burner for college.
supraman1990 is offline  
post #142 of 429 Old 08-11-2008, 03:43 PM
Last Boyscout
Registered User
1979 CJ7 
 
Join Date: Jun 2005
Location: Ozark, MO
Posts: 69
It never ends! So, I did get the Mallory listed above. Great craftsmanship! Studding it to come up with the AN-8 fittings I realized something I over looked on the Hong Kong regulator. I realized the regulators worked like a needle valve and just let a adjusted amount bleed off. Then it hit me that the H.K. regulator did have a return. It was lost in translation on the diagram. they had it labeled "out." The gauge was mounted in the out to the fuel rail, and the lack of a extra hose barb in the package added in me over looking this. So, a trip to the store, rerouting, and some adjustment and she was ready to go. Now with the gauge off the regulator I'm going to mount it permanently to the fuel rail. Summit being the great suppler they are will give me a refund on the Mallory. I lose shipping but that's cheap compared to the other money I've lost on this issue.
If anyone wants to Mallory speak up before the end of the week and I send it back to Summit. $100 and it's your. I was already going to eat the shipping sending it back.

STEP 1: BUILD IT!
STEP 2: BREAK IT!
STEP 3: REPEAT!!!!!
Last Boyscout is offline  
post #143 of 429 Old 08-11-2008, 03:53 PM
Contra
Registered User
1997 TJ Wrangler 
 
Join Date: Aug 2008
Location: San Antonio, Tx
Posts: 1,297
what i wanna do it go from a '97 2.5 to a carb 6
is it gonna pass inspection?


anyone here did that?

Ever Gone Geocaching?
Opencaching
Contra is offline  
post #144 of 429 Old 08-11-2008, 04:17 PM
Last Boyscout
Registered User
1979 CJ7 
 
Join Date: Jun 2005
Location: Ozark, MO
Posts: 69
carb? what block? 4.2 or 4.0? a carbed motor swap is easy. just get all the smog/pollution components for that motor. ERG valve etc.....

this is the 4.0 MPI swap thread. your question would be better suited for the CJ forum if it's an AMC I6 you want to swap.

STEP 1: BUILD IT!
STEP 2: BREAK IT!
STEP 3: REPEAT!!!!!
Last Boyscout is offline  
post #145 of 429 Old 08-21-2008, 06:43 AM
Kman1983
Registered User
1983 CJ5 
 
Join Date: Aug 2008
Posts: 355
I have a few options to replace my weak 258. I have a 360 and I have a '93 Wrangler 4.0. I can get the harness and computer from a wrecked Cherokee(early'90's). So I guess I'd have to send out my bellhousing to have the CPS mod done and find someplace to buy the VSS for a '91 Wrangler. Anyone found someplace other than Hesco to buy the VSS? My CJ5 currently has a T176/Dana 300 in it and I have a T18/Dana 20 out of a '78 or '79 CJ7.
Kman1983 is offline  
post #146 of 429 Old 08-21-2008, 07:19 AM
Last Boyscout
Registered User
1979 CJ7 
 
Join Date: Jun 2005
Location: Ozark, MO
Posts: 69
Part #56027015 VSS
Dakota 4cyl & 6cyl 88-93
Dakota 8cyl 91-93
Dodge 6cyl D100, 150,250 88-89
Dodge 8cyl D100 Ram, D150, 250 88-89

don't waste your money on the Hesco VSS just get one from a salvage yard for $5 to $10. most yards will tell you they don't have any because they pull the tranny. get them to let you look. i've found 2 just by looking. if it's there it'll still be hanging from the speedo cable. don't forget to check for the 2 wire connector on the harness. and don't over tighten when you install it. i cracked the aluminum nut on the first one i got. i didn't try to epoxy it. i just went and got another. they are that easy to find.


here's a good link on the CPS bellhouseing mod. i chickened out and paid $280 for the AA harmonic balancer CPS adapter. in hind sight i wish i'd just gone for it to save some $.
http://www.cjoffroad.com/forums/topi...TOPIC_ID=17156

STEP 1: BUILD IT!
STEP 2: BREAK IT!
STEP 3: REPEAT!!!!!
Last Boyscout is offline  
post #147 of 429 Old 08-21-2008, 07:21 AM
Rezneck
Registered User
1984 CJ7 
 
Join Date: Mar 2007
Location: Bob Barker lived here.
Posts: 735
Quote:
Originally Posted by Kman1983 View Post
I have a few options to replace my weak 258. I have a 360 and I have a '93 Wrangler 4.0. I can get the harness and computer from a wrecked Cherokee(early'90's). So I guess I'd have to send out my bellhousing to have the CPS mod done and find someplace to buy the VSS for a '91 Wrangler. Anyone found someplace other than Hesco to buy the VSS? My CJ5 currently has a T176/Dana 300 in it and I have a T18/Dana 20 out of a '78 or '79 CJ7.

I believe a VSS from an early something Dodge Dakota is supposed to work. I crawled under one and it looks like it might work. The speedo drive looks to be a different size but I think it could be adapted. I'll try to run without one first and see how that works.

Throw the bums out!


48 CJ-2A, Bone stock except it has Allstate locking hubs.
86 CJ-7, 4.0 HO, AX-15, D-30, AMC-20
84 CJ-7, YJ tub and fenders, 258 ci, T-176, D-30, D-44 Trutracs F/R, 4.27s, 33s
77-90ish Wagoneer/TJ/CJ Yard Sale Special, 360AMC, TH400, Quadratrac, D-44s F/R, 3.07s, 34" LTBs.
Rezneck is offline  
post #148 of 429 Old 08-21-2008, 07:28 AM
Last Boyscout
Registered User
1979 CJ7 
 
Join Date: Jun 2005
Location: Ozark, MO
Posts: 69
i forgot you will need a thread adapter to use the mechanical part of the VSS. you can get one from a performance shop or take it off the cruise control of an early 90's xj. it's on the cruise unit under the dash.

STEP 1: BUILD IT!
STEP 2: BREAK IT!
STEP 3: REPEAT!!!!!
Last Boyscout is offline  
post #149 of 429 Old 08-23-2008, 07:43 PM
Kman1983
Registered User
1983 CJ5 
 
Join Date: Aug 2008
Posts: 355
Thanks Guys!! This info has been great. I think I'll try to modify my own bellhousing.
Kman1983 is offline  
post #150 of 429 Old 08-24-2008, 01:45 PM
somebody5788
Registered User
1994 ZJ 
 
Join Date: Aug 2008
Location: Warsaw
Posts: 1,127
Hey guys I have a question. My dad and I have a really nice old CJ but the engine is not holding oil pressure so we would like to do something. Recently we realized just how cheap we can get Grand Cherokee's and we were looking into an motor swap. The thing we want to know is can we use the automatic transmission from the Grand Cherokee in a swap while still using the Dana 300 transfer case? I guess the better way to put it is does it bolt up? If not does anyone make an adapter or would it be easy to have one made? Any other options? We will be at the auction on Tuesday and Thursday and we will be keeping our eyes open for rusted out GC's to do the swap w/ and hopefully help out our own GC's interior a bit lol.
somebody5788 is offline  
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the JeepForum.com forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid e-mail address for yourself.



Email Address:
OR

Log-in









Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.




Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page



Similar Threads
Thread Thread Starter Jeep Forums Replies Last Post
Official AMC V8 swap thread BLS33 Jeep CJ Forum 493 03-30-2016 11:57 PM
Official Cummins 4BT Swap Thread for CJ-7's BigTorqueCJ Jeep CJ Forum 319 09-23-2014 06:29 PM
Official Engine/Assembly/everything else thread jagerlager Jeep CJ Forum 162 10-31-2010 08:30 PM
Official AMC V8 swap thread/Need more imafishingfred Jeep CJ Forum 11 10-21-2007 05:43 PM
Official CJ Lift Thread webejpn01 Jeep CJ Forum 1 10-06-2006 07:59 AM

Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome