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Need the Honda part # for the o-ring seals on the elbow to the head (coolant)that comes from the thermostat housing. I have tried several that i thought would fit but they are still weeping coolant....even tried some silcon but to no avail.

Cheers in advance

MrB
 

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Need the Honda part # for the o-ring seals on the elbow to the head (coolant)that comes from the thermostat housing. I have tried several that i thought would fit but they are still weeping coolant....even tried some silcon but to no avail.

Cheers in advance

MrB
i think all those coolant o rings are the same





number 17 f.e.

91302371023

(91301-MB6-003) O RING 21.9X2.5

Note: this part is superseded by 91301MB6003



number 20

9460850000

O RING 23X2.8



number 19

91307611000

(91307-PH7-660) O-RING (12.5X1.4)

Note: this part is superseded by 91307PH7660



number 18

91302657000

O-RING 53.8X3.1
 

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Water elbow to head - 23 x 2.8mm [proprietry 23 x 3.



water elbow to tube - 21.9 x 2.3 [p 21.8 x 2.4.



Don't know about part numbers but these are the sizes. Fist size is from Honda, second size is what you can pick up at a bearing shop or similar.



I never buy this sort of stuff from Honda, it's too expensive. For the price of a couple OEM ones you can buy a handfull and have spares.
 

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THANKYOU EVERYBODY


Don't worry about the metric sizes they are taken from the original imperial sizes.I took a pair of elbows into my local Plumbers supply and they just dug out some to suit
 

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You can also get them from Plumbers suppliers,



Here's an O-ring size list,



http://globalcxglvtw...ilit=oring#p554













These have been added and thanks to by Terry Fouts

Westerville, Ohio





* 2 - fuel (idle) mixture screw (2.8 x 1.1 mm)



* 2 - float bowl drain screw (4.2 x 1.3 mm)



* 2 - CV Slide Top Limit Plug (6.9 x 1.3 mm)



* 1 - Accelerator pump passage at float bowl (5.0 x 1.3 mm)*



* 2 - Main Fuel Transfer Tubes (5.8 x 2.0 mm)



* 2 - Accelerator Fuel Transfer Tubes (3.8 x 2.0 mm)*



* 2 - Intake Manifold (40 x 2.6 mm)



Thanks.



Terry Fouts

Westerville, Ohio
 
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