yyt Posted November 5, 2017 Share Posted November 5, 2017 Anyone knows the O-ring sizes of the fuel tap? In the Suzuki parts it comes as a complete Tap ( FUEL TAP (F G MODEL) (44300-27A00) ). But i'm going to just replace the 2 O-rings. I can sort of figure out the size (the oval will be from a round seal) and was hoping did it before me. Or any one knows a kit that fits? Quote Link to comment
duncan Posted November 5, 2017 Share Posted November 5, 2017 Have the same repair coming up. Not much of a help, more a reminder to myself to keep an eye on this thread sorry Quote Link to comment
Simbec1863 Posted November 5, 2017 Share Posted November 5, 2017 Wemoto in the uk does a fuel tap repair kit for the F G and H models which includes the o rings you need,I have used one and it worked fine was about £13 http://www.wemoto.com/bikes/suzuki/gsxr_750_f/85/picture/fuel_tap_repair_kit/ They also do complete fuel taps for about £50 1 Quote Link to comment
yyt Posted November 5, 2017 Author Share Posted November 5, 2017 I"m not sure its the same size. Mine doesn't have the vacuum connection, just a tap (on/off/res) and only 1 hose going to the carbs. That repair kit is for the diaphragm Carbs. Quote Link to comment
Simbec1863 Posted November 5, 2017 Share Posted November 5, 2017 (edited) I only used the o rings not sure if the picture on wemoto is just a generic one Edited November 5, 2017 by Simbec1863 Quote Link to comment
CockneyRick Posted November 5, 2017 Share Posted November 5, 2017 I was after a slabby tap & was reliably informed that the 7 & 11 taps are different bolt hole sizes, therefore making the seals different sizes Quote Link to comment
KATANAMANGLER Posted November 5, 2017 Share Posted November 5, 2017 1 hour ago, CockneyRick said: I was after a slabby tap & was reliably informed that the 7 & 11 taps are different bolt hole sizes, therefore making the seals different sizes They are. Spacing is 35mm between mounting points on 750 amd 42mm on the 1100 ( from memory) Quote Link to comment
yyt Posted November 6, 2017 Author Share Posted November 6, 2017 Anyway I measured the Tap's O-ring gaps and ordered from e-bay: Viton 1.9mm O-Ring- O.D. 17mm. Viton 2.4mm O-Ring- O.D. 40mm. Will inform when they will arrive, it takes about a month.. Quote Link to comment
canamant Posted November 7, 2017 Share Posted November 7, 2017 I have 3 750 tanks with 2 different bolt spacings. Anyone know where to get simple on/off fuel taps to fit ? Thanks Quote Link to comment
duncan Posted November 7, 2017 Share Posted November 7, 2017 I checked the standard O-ring list, and I cannot find 13.2x1.9 nor 35.2x2.4, regardless of material. Closest I can find: For the 17mm: 13x2 13.2x1.78 For the 40mm: 34.6x2.4 35x2.5 36x2.5 Available in NBR 70, 90 or Viton off the shelf. And that's using a pretty exhaustive catalog. Either I'm searching wrong, or you're measuring wrong, or something strange is going on. What did you end up ordering exactly, and why should it take a month? You're getting some custom made ones? Quote Link to comment
duncan Posted November 7, 2017 Share Posted November 7, 2017 (edited) Ok, had to know so I took apart my fuel tap to measure. I'm getting 14x1.5mm (17mm outer) for the tap side, and 2.5mm thickness plus an unmeasurable length for the tank side because of the non-round shape. Calculating the length, inner diameter of the groove is 12mm diameter and 34mm for the straights, making 33.64mm inner diameter. Outer is 17.8mm diameter making 39.44mm outer diameter. But then, thats based on the groove size which is (17.8-12) / 2 = 2.9mm wide, and 2mm deep. Need to allow for expansion so 2.5mm should be a good thickness. A ring 34x2.5mm (39mm outer) should be a good fit. Both 14x1.5 and 34x2.5 are standard O-ring sizes, should be easy available and cheap (under 50 euro cents a piece when ordered individually). Edited November 7, 2017 by duncan Quote Link to comment
yyt Posted November 8, 2017 Author Share Posted November 8, 2017 I always order from China coz its cheaper and easy to order that's why it takes a month :-( Locally its pain in the ass to find.. half a day on the phone, than half a day to get there, than they tell you they thought they have it but they misunderstood. I always prefer Viton for fuel applications, so at e-bay i write "viton" and the diameter I need. For the tap: The gap is: O.D-17.2mm / I.D.- 14mm = 3.2/2 = 1.6mm A rough calculation of the O-ring diameter is 20-30% bigger for squashing depending on application. So 1.9 -2.0 mm diameter is good and outer diameter of 17mm will be fine. For the flange of the tap I also did a rough estimate and your (Duncan's) estimate of about 39mm outer diameter is good. The grove is 2.10mm, so 2.5mm O-ring diameter is good. In Viton I found only 2.4 Ø and 40mm outer diameter. Quote Link to comment
bernardo Posted November 8, 2017 Share Posted November 8, 2017 I'm watching this as I have the same problem. I've seen rolls of o ring rubber for sale , though I'm not sure how well the joint would stand up to petrol. Have you a link to the Chinese supplier? Quote Link to comment
duncan Posted November 8, 2017 Share Posted November 8, 2017 (edited) Can order them through business suppliers (using Eriks.co.uk here), but plenty available on Eblag too. A quick search for "14x1.5 viton" brings hundreds, and for acceptable prices (< 1 euro a piece when ordered per piece, way cheaper in bulk). I do not see why you would order from China and wait, you can have it tomorrow... but to each his own. I've ordered mine, 10 euro gets me delivered 5 of each, and half of that money is delivery/small order costs. Arrives tomorrow. Thanks for helping with measurements! Edited November 8, 2017 by duncan Quote Link to comment
yyt Posted November 8, 2017 Author Share Posted November 8, 2017 Hope the 1.5 dia. will do. The gap is 1.6mm, I wrote it should be 1.9 to 2.0mm dia. Quote Link to comment
duncan Posted November 10, 2017 Share Posted November 10, 2017 Hope so too! Will be back home next week then I can try and report. Main reason for getting a 14x1.5 is that the original measured to that size. The gap is indeed way bigger. Quote Link to comment
Blue Posted July 23, 2018 Share Posted July 23, 2018 (edited) How did you guys get on rebuilding fuel taps? Did you also replace the o ring inside the outlet? Edited July 23, 2018 by Blue Quote Link to comment
clivegto Posted July 25, 2018 Share Posted July 25, 2018 Don't think it is supposed to have a O ring my one don't have one. Quote Link to comment
CockneyRick Posted July 26, 2018 Share Posted July 26, 2018 Well it's either an O ring, or a sprung wire circlip? Although the latter wouldn't stop it leaking, just hold it in place! Quote Link to comment
Brians 7/12 Posted July 30, 2018 Share Posted July 30, 2018 Does that outlet part just pop out?... haven’t really looked at mine... was surprised it came apart... lol... don’t want it popping off accidentally when taking the tank on & off !! :-/ Quote Link to comment
clivegto Posted July 30, 2018 Share Posted July 30, 2018 54 minutes ago, Brians 7/12 said: Does that outlet part just pop out?... haven’t really looked at mine... was surprised it came apart... lol... don’t want it popping off accidentally when taking the tank on & off !! :-/ Yes it's just a push in fit. Quote Link to comment
Brians 7/12 Posted July 30, 2018 Share Posted July 30, 2018 eek... lol... better check mine... Thanks Clive !! :-) Quote Link to comment
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