328 injector replacement question

For a 328 you need:

8 each 113570 = the fat "donut" o-ring that holds the injector into the bushing (but buy these from AutohausAZ or importeccatalog using the Bosch PN 3430210606 for a much better price -- as I hope you did for the 0437502047 CIS injector too )

8 each 101031 = this is the o-ring that seals the (reuseable) bushing 113309 into the intake manifold (late 308QV and 328 use the same bushing)

You do not need:

113309 = this is the (expensive) bushing = reuseable unless broken

103326 = "Seeger" = the snap-ring holding the bushing into the intake manifold = reuseable unless lost
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Does this same information apply to '89 model 328's?

 

Yes

 

steve (or anyone), would you happen to know what the correct bosch p/n would be
for the "101031" o-ring?

thanks

 

Yes,,

BOSCH #
3 430 210 606-000

Need 2 , Packs of five.
(I have 8 NEW Bosch 328 O rings, for sale 1/2 price.)
PM me.

Edwardo
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I don't think that there is one as this really isn't a "Bosch" part per-se -- it's more a F part. It probably is just a standard sized metric o-ring, and, if you could get the right size, in a material compatible with gasoline, it would/should work just fine; however, it probably isn't something that you can get at a local US hardware store -- so by the time you factor in making a special trip, or making a special order, I doubt that you'd come out ahead $/time-wise vs the approx. $2 cost from a non-dealer F part supplier (if you are ordering some other F parts at the same time) -- JMO.

Use at your own risk, but on my TR (which uses a slightly different bushing, but the same 101031 o-ring), I have:

groove width in bushing = 3.5 mm
OD of groove in bushing where 101031 o-ring sits = 18.5 mm
ID in intake manifold that receives bushing = 23 mm
therefore, effective groove depth = 2.25 mm

ID of 101031 o-ring (free state) = 17.3-17.5 mm (new part from US non-dealer F part supplier)
cross-section diameter of 101031 o-ring (free state) = 2.5-2.6 mm (new part from US non-dealer F part supplier)

 

thank you for the reply steve.

after re-reading several times, i was enlightened.

 

Those dimensions are VERY CLOSE to an AS568A-115 3/32" o-ring. The actual dimensions are:
ID = 17.1mm|0.674"
Cross Section Diameter: 2.6mm|0.103"

McMaster-Carr has them in standard Viton: #9464K28

 

How do y'all get the injector bushing out, small hook?

 

That might be one option (putting a hook down the center hole of the bushing after removing the injector), but you need to be "gentle" because the 113309 plastic material is brittle/fragile. First time I took my (aluminum) bushings out, I took the intake manifolds off and pressed them out from below (and it took some force because of the dried fuel varnish).