IPD sale XeMODeX - Experts in Volvo Electronics Free shipping all USA - Experts in Brakes
Did you know? 🤔
Logged in users can get email notification of topic replies Log in or register (free).
Amazon Link Buy your stuff using this and it helps MVS!

P80 Fuel tank - what type of plastic? [HDPE with Nylon additive] Topic is solved

Help, Advice and DIY Tutorials on Volvo's extremely popular car line -- Volvo's 1990s "bread and butter" cars -- powered by the ubiquitous and durable Volvo inline 5-cylinder engine.

1992 - 1997 850, 850 R, 850 T5-R, 850 T5, 850 GLT
1997 - 2000 S70, S70 AWD
1997 - 2000 V70, V70 AWD
1997 - 2000 V70-XC
1997 - 2004 C70

User avatar
ZionXIX
Posts: 503
Joined: Mon Aug 11, 2014 2:47 pm
Year and Model: 1996 850 Turbo S/W
Location: Texas
Has thanked: 8 times
Been thanked: 38 times
United States of America
ZionXIX

Re: Fuel tank - what type of plastic?

Post by ZionXIX » Sun Aug 25, 2019 5:45 pm

Could buy a junkyard fuel tank and just cut it into pieces for repairs? Assuming the junkyard one has holes in it.

User avatar
erikv11
Posts: 9473
Joined: Sat Jul 25, 2009 2:03 pm
Year and Model: 850, S/V70, 06 S60R
Location: Iowa
Has thanked: 80 times
Been thanked: 243 times
United States of America
erikv11

Re: Fuel tank - what type of plastic?

Post by erikv11 » Sun Aug 25, 2019 10:01 pm

You could also just install a junkyard tank and be done, no figuring out new configurations or wondering if you got the material right.
'95 854 T5-R, Motronic 4.4, 185k
'96 855 NA, 145k
'98 S70 NA, 220k (living out west)
'98 V70, T5 tune-injectors-turbo, LPT engine, 285k
'06 S60 R, 165k
'99 Camry V6 :shock: 125k
gone: '96 NA 850 210k, '98 NA V70 182k

User avatar
callahanoffroad
Posts: 323
Joined: Mon Jun 30, 2014 5:25 pm
Year and Model: 1995 850
Location: St. Louis Missouri
Has thanked: 16 times
Been thanked: 29 times
United States of America
callahanoffroad

Re: Fuel tank - what type of plastic?

Post by callahanoffroad » Mon Aug 26, 2019 6:00 am

This thread is why I love MVS.
Author, Chef, and Shade Tree Mechanic

1995 Volvo 850, Non-Turbo, VVIS, LH FI, Green, 215,000 miles. B5254FS engine. Herman. viewtopic.php?f=1&t=84393

1996 Volvo 850, died at 280,000

Founder of: CookingForChemo.Org

User avatar
BlackBart
Posts: 716
Joined: Sat Dec 10, 2016 5:03 pm
Year and Model: 2004 XC70 BlackBetty
Location: Montana
Has thanked: 58 times
Been thanked: 39 times
Sweden
BlackBart

Re: Fuel tank - what type of plastic?

Post by BlackBart » Mon Aug 26, 2019 9:52 am

Good ideas - just none around here. And it will be used and the same age and maybe have the same crack. It's right at the rear heat shield bolt.
ex-1984 245T wagon
1994 850T wagon
2004 XC70 wagon BlackBetty
Is it time for a 1964 122 wagon?

User avatar
ZionXIX
Posts: 503
Joined: Mon Aug 11, 2014 2:47 pm
Year and Model: 1996 850 Turbo S/W
Location: Texas
Has thanked: 8 times
Been thanked: 38 times
United States of America
ZionXIX

Re: Fuel tank - what type of plastic?

Post by ZionXIX » Mon Aug 26, 2019 12:05 pm

I would think all the P80 gas tanks from that era are probably made of the same material. Might open your options?

User avatar
erikv11
Posts: 9473
Joined: Sat Jul 25, 2009 2:03 pm
Year and Model: 850, S/V70, 06 S60R
Location: Iowa
Has thanked: 80 times
Been thanked: 243 times
United States of America
erikv11

Re: Fuel tank - what type of plastic?

Post by erikv11 » Mon Aug 26, 2019 2:08 pm

BlackBart wrote:
Fri Aug 23, 2019 11:37 pm
Mine. I believe it has expired some time ago, and my closest dealer is 3 hours away anyway.

The leak is coming directly from the rear heat shield bolt. Many others have said the same thing....6 gallons is all you get before it leaks there.
It's all 850s, 1994-1997. Service bulletin 140.

Fortunately I've never run into this problem in all my years with various P80 cars. It's rare on the forums but does pop up, though pretty much not any more as the P80 fades into the sunset. Likely many P80 cars still out there were already fixed (the fix was to put rubber bushings in between the heat shield and the tank, and replace the tank if already cracked though Volvo often just replaced the tank anyway). It's reportedly worse in warm climates, FWIW.

If you do end up doing some kind of melted plastic repair, I guess you'll want to be sure it is a very smooth surface, and to use rubber bushings on the bolts. Are there bushings in there now?
'95 854 T5-R, Motronic 4.4, 185k
'96 855 NA, 145k
'98 S70 NA, 220k (living out west)
'98 V70, T5 tune-injectors-turbo, LPT engine, 285k
'06 S60 R, 165k
'99 Camry V6 :shock: 125k
gone: '96 NA 850 210k, '98 NA V70 182k

User avatar
matthew1
Site Admin
Posts: 10239
Joined: Sat Sep 14, 2002 11:03 am
Year and Model: 850 T5, 1997
Location: Denver, Colorado, US
Has thanked: 506 times
Been thanked: 188 times
United States of America
matthew1

Re: Fuel tank - what type of plastic?

Post by matthew1 » Mon Aug 26, 2019 2:51 pm

I had my 850 checked at a dealer for this circa 2008. All was well, no repair.
Help keep MVS on the web -> click sponsors' links here on MVS when you buy from them.
Also -> Amazon link
. Click that when you go to buy something on Amazon and MVS gets a kickback.

1997 850 T5, MSD ignition coil, Hallman manual boost controller, injectors, R bumper, OMP strut brace [gone]
2004 V70 R [gone]

Image

User avatar
ZionXIX
Posts: 503
Joined: Mon Aug 11, 2014 2:47 pm
Year and Model: 1996 850 Turbo S/W
Location: Texas
Has thanked: 8 times
Been thanked: 38 times
United States of America
ZionXIX

Re: Fuel tank - what type of plastic?

Post by ZionXIX » Mon Aug 26, 2019 8:40 pm

I had mine checked last year and got a free replacement. I called volvo customer service ahead of time and then contacted my nearest dealer. All they can say is no. Might as well give it a try.

User avatar
BlackBart
Posts: 716
Joined: Sat Dec 10, 2016 5:03 pm
Year and Model: 2004 XC70 BlackBetty
Location: Montana
Has thanked: 58 times
Been thanked: 39 times
Sweden
BlackBart

Re: Fuel tank - what type of plastic?

Post by BlackBart » Mon Aug 26, 2019 9:55 pm

No bushings that I can see yet. I’ve had it since 60k miles. It did start it’s life in Dallas, so....
Not putting the heat shield back on those bolts - I’ll figure out an alternative.
I tried dealers long ago - they said drop it off, 3 hours away or 8, & leave it. We’ll inspect and contact Volvo in a week. They may or may not approve replacement. If not, we’ll fix it at full dealer prices. Then get a ride 3 hours to pick it up.
ex-1984 245T wagon
1994 850T wagon
2004 XC70 wagon BlackBetty
Is it time for a 1964 122 wagon?

scot850
Posts: 5667
Joined: Mon Apr 05, 2010 2:46 pm
Year and Model: 2000 V70 R
Location: Calgary, Alberta, Canada
Has thanked: 9 times
Been thanked: 168 times
Canada
scot850

Re: Fuel tank - what type of plastic?

Post by scot850 » Mon Aug 26, 2019 11:05 pm

I had a problem with a V70 plastic tank. Looked like the owner had backed it over something bending the heatshield and breaking the mount on one side. If I recall I glued it back with a plastic epoxy as well as a little work of melting the plastic with my little propane plastic welder (like a soldering iron with a wider tip and comes with a selection of plastic weld rods). Car is still running fine with my buddy.

Neil.
2000 V70 R - still being an endless PITA
2006 XC70
2003 Toyota 4Runner V8 Limited
2015 Kia Sportage EX-L
1993 850 GLT -Sold
1998 V70 XC - Sold
1997 Volvo 850 SE NA - Went to niece in California - Sold
2000 V70 SE NA - New project and test bed - Sold

Post Reply
  • Similar Topics
    Replies
    Views
    Last post