How to: Volvo 940 fuel filter replacement

[Forrest]

Originally Posted by Laird Scooby

Damage can include the short pipe between the main pump and filter on older models which although is available from Volvo it's £50

Been there, done that. The howto guide I read before doing my 1994 twin pump version suggested using an impact wrench on seized banjo bolts. This resulted in the total destruction of that short pipe which in its death throws jettisoned some of the fuel remaining in the filter into my eyes.

Whilst unbelievably painful it does not, contrary to some reports, cause permanent blindness if you wash it out promptly with plenty of water. Best avoided though.

This was the cheapest replacement I could find.

https://www.skandix.de/en/search/?q=1312297

[Laird Scooby]

Originally Posted by Forrest

Been there, done that. The howto guide I read before doing my 1994 twin pump version suggested using an impact wrench on seized banjo bolts. This resulted in the total destruction of that short pipe which in its death throws jettisoned some of the fuel remaining in the filter into my eyes.

Whilst unbelievably painful it does not, contrary to some reports, cause permanent blindness if you wash it out promptly with plenty of water. Best avoided though.

This was the cheapest replacement I could find.

https://www.skandix.de/en/search/?q=1312297

Neither does battery acid but that's also incredibly painful! Fortunately there was an eye wash station so first aid was given and i was taken to the eye hospital to be checked and given the rest of the day off. My eyes survived better than my overalls, sweatshirt and T-shirt though! They all develop large holes where the acid splashed them and my jeans also fell apart.

[360beast]

Yes I did use a backing spanner, forgot to put it in... hopefully someone attempting to change the fuel filter will have enough sense to though haha.

Although to be fair the banjo bolt I shocked free with a ratchet and 17mm socket.

[Ian21401]

An impact wrench on banjo bolts sounds rather excessive to me and as a last resort expecting to possibly cause damage. When I last changed my fuel filter l had an open end backing spanner on the filter and a ring spanner on the banjo bolt, so orientated that they were slightly offset so that I could squeeze them together. It took some effort but they eventually gave in and then loosened easily. I removed both banjos before removing the cradle and loosening the filter strap.
For the record, prior to crawling underneath to do the job I measured the shaped hexagon ends on the body of my new OEM filter to ensure that I had the appropriate open end spanners. They were 26.7 mms on one end and 22.0 mms on the other end. The banjo bolts are 18 mms and 17 mms.

[360beast]

Originally Posted by Ian21401

An impact wrench on banjo bolts sounds rather excessive to me and as a last resort expecting to possibly cause damage. When I last changed my fuel filter l had an open end backing spanner on the filter and a ring spanner on the banjo bolt, so orientated that they were slightly offset so that I could squeeze them together. It took some effort but they eventually gave in and then loosened easily. I removed both banjos before removing the cradle and loosening the filter strap.
For the record, prior to crawling underneath to do the job I measured the shaped hexagon ends on the body of my new OEM filter to ensure that I had the appropriate open end spanners. They were 26.7 mms on one end and 22.0 mms on the other end. The banjo bolts are 18 mms and 17 mms.

Ratchet (3/8) to be exact not an impact wrench.

EDIT: Sorry Ian I missed the previous post about the impact wrench and thought you were suggesting I'd used one!

Like you say using an impact wrench would be very daft indeed!

[Ian21401]

Luke, I wasn’t alluding to you using an impact wrench. It was in relation to Forrest’s post #11 and his comment regarding the advice in a “how to” guide.

[Forrest]

I think it may have been this that I read. It was a few years ago now.

https://www.brickboard.com/RWD/volvo...el_filter.html

[Laird Scooby]

Originally Posted by Forrest

I think it may have been this that I read. It was a few years ago now.

https://www.brickboard.com/RWD/volvo...el_filter.html

Ouch! Typical American though, if the right method won't work, reach for the sledgehammer to crack the walnut!

[taiwan740]

Originally Posted by Laird Scooby

Neither does battery acid but that's also incredibly painful! Fortunately there was an eye wash station so first aid was given and i was taken to the eye hospital to be checked and given the rest of the day off. My eyes survived better than my overalls, sweatshirt and T-shirt though! They all develop large holes where the acid splashed them and my jeans also fell apart.

How did you gain your experience, may i ask? You a mechanic, engineer or something?

[Laird Scooby]

Originally Posted by taiwan740

How did you gain your experience, may i ask? You a mechanic, engineer or something?

All the above and a bit more besides.