Stupid Question of The Day
Stupid Question of The Day
Author
Discussion

v8s4me

Original Poster:

7,275 posts

248 months

Thursday 22nd May 2014
quotequote all
Im going to change the fuel filter. Will the fuel pump stop petrol draining out of the tank while Im fitting the new one? Will much petrol flow back down from the regulator valve or is there a vacuum there to hold it back?

OK, two stupid questions laugh

Oldred_V8S

3,764 posts

267 months

Thursday 22nd May 2014
quotequote all
v8s4me said:
Im going to change the fuel filter. Will the fuel pump stop petrol draining out of the tank while Im fitting the new one? Will much petrol flow back down from the regulator valve or is there a vacuum there to hold it back?

OK, two stupid questions laugh
Joe

It's only the questions that go unasked that are the stupid ones.

You can remove the filter without draining the tank. I know because I replaced mine earlier this year.

v8s4me

Original Poster:

7,275 posts

248 months

Friday 23rd May 2014
quotequote all
Thank you thumbup

Barry S1

1,709 posts

218 months

Friday 23rd May 2014
quotequote all
Isn't the filter between the tank and the pump ?, I put a clamp on the pipe when I did mine, you will smell of petrol for a day or so after. smile


phillpot

17,508 posts

212 months

Friday 23rd May 2014
quotequote all
Barry S1 said:
Isn't the filter between the tank and the pump ?
Nope!

You may have a pre-filter (non standard) but all the V6 and V8 variants have the main filter on the pressure side of the pump smile

On the 2.9 V6 system pressure can be held in that fuel line (same on V8 ?), there is a valve on the injector manifold to release it, or lots of rag around the hose fitting as you loosen the first union!

Edited by phillpot on Friday 23 May 06:42

v8s4me

Original Poster:

7,275 posts

248 months

Friday 23rd May 2014
quotequote all
phillpot said:
.... or lots of rag around the hose fitting as you loosen the first union!

Edited by phillpot on Friday 23 May 06:42
Mine's push fit so I'll have a couple of short bolts handy to plug the pipes.

The filter I got is a Coopers/Fiaam FT5141/FIG7002 if anyone is interested. Just 9.00.

Oldred_V8S

3,764 posts

267 months

Friday 23rd May 2014
quotequote all
v8s4me said:
phillpot said:
.... or lots of rag around the hose fitting as you loosen the first union!

Edited by phillpot on Friday 23 May 06:42
Mine's push fit so I'll have a couple of short bolts handy to plug the pipes.

The filter I got is a Coopers/Fiaam FT5141/FIG7002 if anyone is interested. Just 9.00.
I just released the pressure at the schraeder valve on the fuel rail, no plugging required. You will get a dribble or two, but just have a bowl underneath to catch that.

mk1fan

10,902 posts

254 months

Friday 23rd May 2014
quotequote all
I have a 2.9 V6 S3C. Changed the fuel filter a couple of months back.

There's a scheder valve under the inlet manifold on the passenger side (UK rhd car) of the engine. Released the pressure. Then took the back wheel off and pulled the filter free. Undid the two banjo fittings and swapped the fileter over. I ended up cleaning up the old copper washers and reusing them as the new ones had a bigger flange that the corroded banjo and bolts didn't seat properly with.

Oldred_V8S

3,764 posts

267 months

Friday 23rd May 2014
quotequote all
mk1fan said:
I have a 2.9 V6 S3C. Changed the fuel filter a couple of months back.

There's a scheder valve under the inlet manifold on the passenger side (UK rhd car) of the engine. Released the pressure. Then took the back wheel off and pulled the filter free. Undid the two banjo fittings and swapped the fileter over. I ended up cleaning up the old copper washers and reusing them as the new ones had a bigger flange that the corroded banjo and bolts didn't seat properly with.
No banjo fittings for us V8 boys,



just push hoses on and a couple of jubilee clips.

phillpot

17,508 posts

212 months

Friday 23rd May 2014
quotequote all


Quality went right out the window when the V8 was introduced biggrin

Oldred_V8S

3,764 posts

267 months

Friday 23rd May 2014
quotequote all
phillpot said:
Quality went right out the window when the V8 was introduced biggrin
Cheeky laugh

Barry S1

1,709 posts

218 months

Friday 23rd May 2014
quotequote all
Can I get in the TVR modified club then with my petrol filter ;-)

v8s4me

Original Poster:

7,275 posts

248 months

Friday 23rd May 2014
quotequote all
phillpot said:
Quality went right out the window when the V8 was introduced biggrin
I know. No more scratching around on the drive, head in the wheel arch trying to fit new copper washers and deal with old worn threads on unions to try and get a fuel tight seal. Progress? You can keep it! laugh