328 injector replacement question

I've searched and discovered that the injectors for 308-328 are the same and available fairly inexpensively. But I'm having some trouble understanding the parts diagrams re what else is needed when replacing the injectors. THere is a rubber bushing that shows in the parts diagram that is listed as $150+ EACH on the Ricambi site. Am I reading this right, that 8 small rubber bushings are needed ( or MAY be needed) for injector replacement at a total price of over 1200 bucks? What other parts may be necessary? I don't want to start the work and THEN figure out I should have purchased additional parts. And surely rubber bushings don't cost 150+ each....right?

So could someone clarify exactly what I need to purchase to ensure I have everything I need to replace the injectors on mu 328. I have the injector puller on the way.

Thanks!

 

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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Great info Steve and exactly what I was looking for. I'll order the parts from Autohaus

Thanks!

 

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).