Notices
86-95 Trucks & 4Runners 2nd/3rd gen pickups, and 1st/2nd gen 4Runners with IFS

Fuel pressure pulsation damper question

Thread Tools
 
Search this Thread
 
Old Oct 5, 2013 | 02:02 PM
  #1  
jreyes94's Avatar
Thread Starter
Registered User
 
Joined: Nov 2012
Posts: 66
Likes: 0
From: Oregon
Fuel pressure pulsation damper question

My 93 3vz damper is leaking, but its missing the bolt that screws into it, thank god its the only thing wrong with it leaking. the only thing it will not unscrew off the fuel rail!
its being a PITA...P&B blaster isnt working ( i let it sit all night)
so what im basically stuck with is trying to find a correct size bolt that screws into it.
Does anyone know what size it is?
i've looked at diagrams, but i dont see a # for the bolt, just the whole dampener itself?
any help appreciated
Reply
Old Oct 5, 2013 | 04:47 PM
  #2  
MudHippy's Avatar
Registered User
 
Joined: Jan 2007
Posts: 6,106
Likes: 27
The bolt's not necessary for it to function correctly. And since it's not the reason it's leaking, putting another one in there isn't going to do you any good.
Reply
Old Oct 5, 2013 | 09:55 PM
  #3  
scope103's Avatar
Registered User
15 Year Member
 
Joined: Sep 2007
Posts: 8,381
Likes: 873
From: San Francisco East Bay
You have a leaking diaphragm inside the pulsation damper. You need to replace the damper. Replacing the screw won't do anything.
https://www.yotatech.com/forums/f116...octite-266710/

And don't try some shade-tree bubble-gum fix. You're dealing with pressurized gasoline. That would be a horrible way to die.
Reply
Old Oct 6, 2013 | 10:23 PM
  #4  
jreyes94's Avatar
Thread Starter
Registered User
 
Joined: Nov 2012
Posts: 66
Likes: 0
From: Oregon
well, i had the chance to go to my local pick a part junkyard and pull the bolt out of the only 3vz in the yard...i had about 10 mins to find it and get back out before it closed too... it didnt leak between the washers, just out of the bolt hole. just drip leak, not constant flow. now that i've screwed the bolt in, it doesnt leak, and the engine doesnt sound like its missing. duly noted, if it begins leaking again, ill know, and i'll definitely replace the whole piece..i'm not ignorant..just a tad lazy and dont like the price of the new damper...
although scope103 ty for that link, i searched this forum but didnt see that title? good information in there.
Reply
Old Oct 6, 2013 | 10:30 PM
  #5  
jreyes94's Avatar
Thread Starter
Registered User
 
Joined: Nov 2012
Posts: 66
Likes: 0
From: Oregon
Originally Posted by scope103
You have a leaking diaphragm inside the pulsation damper. You need to replace the damper. Replacing the screw won't do anything.
https://www.yotatech.com/forums/f116...octite-266710/

And don't try some shade-tree bubble-gum fix. You're dealing with pressurized gasoline. That would be a horrible way to die.
now that i think about it again and thoroughly read that link, i probably will pull the damper from the one i found in the junkyard...
Reply
Old Oct 7, 2013 | 06:06 AM
  #6  
scope103's Avatar
Registered User
15 Year Member
 
Joined: Sep 2007
Posts: 8,381
Likes: 873
From: San Francisco East Bay
Rockauto has one (on close-out) for $44 (the price I paid at the dealer, which is not "full list", was $113 including the washers you'll need. Which washers are NOT available from Rockauto or anywhere else, SFAIK).

A part you find in the junkyard will be as old (or older) than the one you have now. Remember: "Pressurized gasoline."
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
jbv808
86-95 Trucks & 4Runners
16
Aug 6, 2021 04:47 PM
Doug4320
86-95 Trucks & 4Runners
19
Mar 24, 2018 10:11 PM
v_man
86-95 Trucks & 4Runners
14
Jul 23, 2015 04:01 PM
TURBOrunnerNM
86-95 Trucks & 4Runners
4
Jul 22, 2015 11:01 AM
88yodabasket
86-95 Trucks & 4Runners
15
Jul 13, 2015 01:32 PM




All times are GMT -8. The time now is 01:09 AM.