Fuel Sending unit replacement Question - 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 Wrangler Forums > YJ Wrangler Technical Forum > Fuel Sending unit replacement Question

Component speaker deal for your dash - NalinMFGIntroducing MONSTALINER™ UV Permanent DIY Roll On Bed LineSteering and more from Ruffstuff!

Reply
Unread 06-29-2011, 08:29 AM   #1
Jims-87YJ
Registered User
1987 YJ Wrangler 
 
Join Date: May 2010
Location: Lansdale, Pa 19446, PA
Posts: 681
Fuel Sending unit replacement Question

Just picked up a new Fuel sending unit for my rebuild and have a question, when using the rubber gasket on the top should i seal it with something (RTV-?) or is just the rubber seal good enough?
Also is there any calibration that I should do before I assemble it?
Thanks for any info.

__________________
1987 YJ, 258, Weber 32/36, HEI, Custom Sound bar, Hardtop/Sun-rider/bikini tops, 2" Lift, 1/2" Boomerangs, 1" Body & MM Lift. 32x11.5x15 Copper STT's on Black Rock 950 Lobos w/4" backspacing, Still need Front Bumper and Seats.

My build thread: [url]http://www.jeepforum.com/forum/f12/my-very-slow-87-yj-build-thread-1137667/[/url]
Jims-87YJ is offline   Reply With Quote
Unread 06-29-2011, 09:29 AM   #2
oldtime_ironman
Web Wheeler
1991 YJ Wrangler 
 
Join Date: Dec 2010
Location: 14304 Niagara Falls, NY
Posts: 2,540
I don't think its absolutely necessary, but it couldn't hurt either. I used a very thin coating of Permatex #2 (the black tar stuff). There isn't any calibration that I'm aware of, although I would check to be ery sure that the grounds are good.
oldtime_ironman is offline   Reply With Quote
Unread 06-29-2011, 01:57 PM   #3
pasinbuy
Registered User
1994 YJ Wrangler 
 
Join Date: Feb 2007
Location: florida
Posts: 3,836
If you want to be able to go back in without buying a new gasket. Do not use RTV. It is a thick gasket.
pasinbuy is offline   Reply With Quote
Unread 06-29-2011, 02:17 PM   #4
5.7YJ
Senior Member
 
5.7YJ's Avatar
1987 YJ Wrangler 
 
Join Date: Aug 2006
Location: Rockledge, Florida
Posts: 890
Gasket should be fine on it's own and there is no calibration needed.
5.7YJ is offline   Reply With Quote
Unread 06-29-2011, 02:30 PM   #5
phil1330
Registered User
1964 CJ5 
 
Join Date: May 2011
Location: Lexington, sc
Posts: 451
NO rtv. Rubber gasket is A OK by itself.
__________________
"Life is hard, it's harder if your're stupid"...The Duke
phil1330 is offline   Reply With Quote
Unread 06-29-2011, 04:42 PM   #6
gunshw301
Registered User
1994 YJ Wrangler 
 
Join Date: Nov 2009
Location: St. Louis, Missouri
Posts: 1,369
rtv is no good with fuel, even says it on the label.
__________________
F/S Dana 35, 4:10, open make an offer, local pick up only, will not ship. 3-8-13

[URL="http://www.jeepforum.com/forum/f22/my-94-b-g-yj-1034888/"]My 1994 yj build page[/URL]
gunshw301 is offline   Reply With Quote
Unread 06-29-2011, 07:28 PM   #7
Noltz
Registered User
YJ Wrangler 
 
Join Date: Oct 2010
Location: Hamilton, Ontario
Posts: 746
No silicone here. Make sure you add a sending unit access hole to the bed of your project.
__________________
-Noltz
'91 Frankenheep YJ. 4.0, 4" BDS, Richmond 8.8, Titan 12k, 35" KM2's, rust.
'88 YJ, 4.2/4.0 head, +4½" & shackles, BFG 33's (sold)
Noltz is offline   Reply With Quote
Unread 06-29-2011, 07:33 PM   #8
Jims-87YJ
Registered User
1987 YJ Wrangler 
 
Join Date: May 2010
Location: Lansdale, Pa 19446, PA
Posts: 681
Thanks for all of the replies. Will install just the gasket, as I am replacing all of the hardware and sandblasting and painting everything, if I have to drop the tank down the road it should not be an issue. Thanks again, Jim
__________________
1987 YJ, 258, Weber 32/36, HEI, Custom Sound bar, Hardtop/Sun-rider/bikini tops, 2" Lift, 1/2" Boomerangs, 1" Body & MM Lift. 32x11.5x15 Copper STT's on Black Rock 950 Lobos w/4" backspacing, Still need Front Bumper and Seats.

My build thread: [url]http://www.jeepforum.com/forum/f12/my-very-slow-87-yj-build-thread-1137667/[/url]
Jims-87YJ is offline   Reply With Quote
Unread 06-29-2011, 08:15 PM   #9
jcmooreusmc
Member
 
jcmooreusmc's Avatar
1991 YJ Wrangler 
 
Join Date: Jul 2010
Location: Milledgeville, Georgia
Posts: 294
Jim, glad to hear you're going with the gasket only. I'll give you an example of what that silicone or rtv will do. I had my fuel pump replaced at a shop by a licensed mechanic. Later on, I was having trouble with the jeep shutting off while driving for a good hour or more. After sitting for a few hours, it would crank and run again. Decided to drop the tank and check out the pump. The mechanic put a tremendous amount of silicone around the hole for the sending unit. Silicone + Gasoline = Jelly. The jelly would get sucked up around the screen and stop fuel flow. After sitting, it would fall off and drop back to the bottom of the tank. Had a good handful in there. I wound up replacing it with a Bosch and did the work myself.
jcmooreusmc is offline   Reply With Quote
Unread 06-29-2011, 08:54 PM   #10
Jims-87YJ
Registered User
1987 YJ Wrangler 
 
Join Date: May 2010
Location: Lansdale, Pa 19446, PA
Posts: 681
Wow That sounds like a mess, I will avoid the use of any additional sealant. Thanks again for all the replies
__________________
1987 YJ, 258, Weber 32/36, HEI, Custom Sound bar, Hardtop/Sun-rider/bikini tops, 2" Lift, 1/2" Boomerangs, 1" Body & MM Lift. 32x11.5x15 Copper STT's on Black Rock 950 Lobos w/4" backspacing, Still need Front Bumper and Seats.

My build thread: [url]http://www.jeepforum.com/forum/f12/my-very-slow-87-yj-build-thread-1137667/[/url]
Jims-87YJ is offline   Reply With Quote
Reply
Thread Tools


Suggested Threads





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.