The New And Improved Unofficial R65 Forum V2

Technical Discussion => BMW Technical Q&A, Primarily R65 => Topic started by: stockman on October 04, 2009, 08:35:54 AM

Title: fuel filter
Post by: stockman on October 04, 2009, 08:35:54 AM

I added a small engine in line fuel filter I found at the local hardware store. It seems to work but could it restrict fuel volume ?? Any one add a filter in line to supplement filtration??

Title: Re: fuel filter
Post by: Bob_Roller on October 04, 2009, 09:09:15 AM

I've had a fuel filter on my R65 for about 8 years .

The only way to tell if you're getting any appreciable restriction, is to test it .

Remove the fuel line downstream of the filter, and then turn the fuel tap on for a measured amount of time, measure the amount of fuel you collected .

Now do the same thing, without the filter installed in the line, and see what kind of difference you get .

I've used the common 'sintered' element filters, and now I am using a clear filter, with a pleated paper element Visu Filter FF861C .

http://www.itw-fastex-cva.com/images/stories/data-shts/visufilter/8437-00-9909.PDF

Title: Re: fuel filter
Post by: Lucky_Lou on October 04, 2009, 10:30:24 AM

Ive fitted 2 one in the tank and one inline not had any problems since i fitted them
Lou

Title: Re: fuel filter
Post by: Bob_Roller on October 04, 2009, 10:43:41 AM

I've noticed that after installing a fuel filter, there hasn't been the usual glob or two of water in the float bowl, and the accumulation of fine grit in there hasn't come back .

Title: Re: fuel filter
Post by: stockman on October 04, 2009, 11:48:41 AM

Thanks Bob and Lou. Why don't you two ride over and help me with this thing? They leaves are just about peak here, beautiful riding. Call when your close.

Title: Re: fuel filter
Post by: Bob_Roller on October 04, 2009, 12:03:59 PM

I get off of work at 1230 today, lets see 2700 miles, I'll be there sometime Friday .

Title: Re: fuel filter
Post by: Lucky_Lou on October 04, 2009, 12:52:08 PM

Quote

Thanks Bob and Lou. Why don't you two ride over and help me with this thing? They leaves are just about peak here, beautiful riding. Call when your close.

I greatly appreciate the offer and may just do that one day but ill have to save up for the airfreight to get the bike over the pond
Lou

Title: Re: fuel filter
Post by: stockman on October 04, 2009, 07:53:28 PM

Well look me up if either of you make it. Lou you would like my mother in law she talks funny too she's from Bristol. She's 84 and loves to split a beer with any one. Usually she splits several, she is really fun.

Title: Re: fuel filter
Post by: R65_Mark on October 04, 2009, 11:11:06 PM

I use a Briggs & Stratton 691035 (some references have its part number as 491629).  It’s a 60-micon filter with 1/4” single-barbed connection bosses and is only 70mm/1.75” overall length and on the shelf at Lowes and Home Depot.  Might even be on the shelf at B&Q in the UK!

Title: Re: fuel filter
Post by: montmil on October 05, 2009, 05:38:27 AM

Quote

I use a Briggs & Stratton 691035 (some references have its part number as 491629).  It’s a 60-micon filter with 1/4” single-barbed connection bosses and is only 70mm/1.75” overall length and on the shelf at Lowes and Home Depot.  Might even be on the shelf at B&Q in the UK!

Same filter is on both my R65's. Easy visual inspection for tiny crud.

I have no fuel flow problems. At least, not until I'm passing through 130 mph at the Texas Mile.  ;)

Monte