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Fuchs915

3.2 injector help

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Evening!  I am in the process of replacing my seals on the injectors and the seal kit is very different to the bits on the car.  Has an extra seal but more importantly the cap and spacer are a different size.  In the pic below, the top row is what came with the new kit and the bottom is what came off one of the injectors.  The packaging for the seal kit matches the number in the pdf PET diagram, 944 110 901 00 and the injector number 0280 150 158 appears to be correct (after a quick Google).

Has anyone else had this issue?  Am I missing something?

Thanks 

ECFFCF59-28CE-479F-9A31-150DDA060E53_1_105_c.thumb.jpeg.1fbad10576cfe747b7c27064d1dd2d21.jpeg

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Pic of my freshly refurbed injectors for reference. These were done by an injector specialist.

I suspect your extra seal is a spare?

911-1.jpg.bdc90412c05227bca0aebfc22cbf14ba.jpg

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Is the new spacer thinner allowing for the deeper new cap?

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1 hour ago, Chris_911 said:

Pic of my freshly refurbed injectors for reference. These were done by an injector specialist.

I suspect your extra seal is a spare?

 

Cheers Chris, that helps.  While colours are different, the cap and spacer look like my original ones.  I assumed the seal was either a spare or that another application might use 3 seals.

55 minutes ago, Phill said:

Is the new spacer thinner allowing for the deeper new cap?

No, it's wider.  I did wonder if the different spacer would mean the seal sat more in it than on it allowing it all to fit.  It seems to a little but the cap is deeper when fitted which means the pointy metal tip of the injector sits inside the cap rather than through it.

F5ACE252-297D-43CB-AE6E-9431FE66EE86_1_105_c.thumb.jpeg.763f9d4c78708201a45f5c887a9e9b60.jpeg

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Here's a shot for the pointy bit (sure it has a technical name).  You can see the cap also has a wider lip.

A06D7550-6FE6-4247-87BE-F9B977C7C65F_1_105_c.thumb.jpeg.590fce7f9b5bc2dfab663f2cf4d5f291.jpeg

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12 minutes ago, Fuchs915 said:

Here's a shot for the pointy bit (sure it has a technical name).  You can see the cap also has a wider lip.

A06D7550-6FE6-4247-87BE-F9B977C7C65F_1_105_c.thumb.jpeg.590fce7f9b5bc2dfab663f2cf4d5f291.jpeg

Well that doesn't look right. It appears that the injector outlet is right back inside the cap.

Cap & spacer combination seems wrong to me.

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1 hour ago, Chris_911 said:

Well that doesn't look right. It appears that the injector outlet is right back inside the cap.

Cap & spacer combination seems wrong to me.

+1

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2 hours ago, Fuchs915 said:

... the pointy metal tip of the injector...

"Pintle", i think?

  • Thanks 1

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1 hour ago, Chris_911 said:

Well that doesn't look right. It appears that the injector outlet is right back inside the cap.

Cap & spacer combination seems wrong to me.

 

16 minutes ago, Phill said:

+1

Thanks both, and I agree.  I have checked the Bosch part number for the kit - 1 287 010 704 - and it seems to be what people like Pelican have as the correct kit so not sure what's going on.  I have dropped a note through to my local OPC, including the side by side injector pic, for their thoughts. I have also found some Bosch info for the individual parts, where none of the numbers match the numbers in the kit  :signs60: Maybe superceded parts numbers...??

15 minutes ago, mean in green said:

"Pintle", i think?

Yep, that's the fella.  Thanks.

Have also taken a 15 quid punt on a set from eBay which the seller says ought to fit.  We'll find out soon enough!

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Here is what my local OPC says:

In regards to the seals, they have actually provided a picture on the system of what the kit entails (picture same as the kits I have). It looks like potentially they have modified the kit speaking to the workshop controller. He also believes that the cap being slightly taller might stop the injector fowling and collating carbon deposits as it sits further inwards, it might also have a more efficient spray pattern because of this.

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My cars injectors had new seals about 10 years ago, they are identical to the picture Chris posted of refurbished items.

I suspect that the kit you have is a generic kit, the O ring seals might be the same as our cars, but the rest of the parts are intended for Volvo/VW.

https://www.fcpeuro.com/products/audi-jaguar-porsche-volkswagen-volvo-fuel-injector-seal-bosch-1287010704#fitment

 

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2 hours ago, angusb said:

My cars injectors had new seals about 10 years ago, they are identical to the picture Chris posted of refurbished items.

I suspect that the kit you have is a generic kit, the O ring seals might be the same as our cars, but the rest of the parts are intended for Volvo/VW.

https://www.fcpeuro.com/products/audi-jaguar-porsche-volkswagen-volvo-fuel-injector-seal-bosch-1287010704#fitment

 

That's what I thought was maybe the case but OPC has confirmed with a picture that it is the correct kit.   I have something that I hope will look more like the original parts arriving tomorrow so I'll see how that goes, but it does seem that Bosch (and consequently Porsche) has changed/upgraded/updated the parts for whatever reason.

Thanks for the video, confirms what I had been doing for re-assembly so that's peace of mind.

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Hope you get the correct parts tomorrow.

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These look better.  Even if the Bosch/Porsche kits I'd bought were correct, I just couldn't get my head around having the pintle so far inside the cap so happier that these are the same set up as the originals.

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Kit from eBay also came with new filters (the Porsche/Bosch kit doesn't) so will pop the new filters in and then put it all back together on the car.

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:signs118: Looks like the one on the right has been sick...

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While the injectors are out it makes sense to clean them if you haven't already - injector cleaner kits are cheap and universal fit.  Took a single can of cleaner and 20 minutes to do them all - car was so much happier afterwards and spray patterns were visibly improved for a £15 total spend.  I'm sure the specialist companies do it better but this cheap DIY effort worked great for me

 

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On 02/07/2020 at 22:34, Simondo said:

While the injectors are out it makes sense to clean them if you haven't already - injector cleaner kits are cheap and universal fit.  Took a single can of cleaner and 20 minutes to do them all - car was so much happier afterwards and spray patterns were visibly improved for a £15 total spend.  I'm sure the specialist companies do it better but this cheap DIY effort worked great for me

 

Thanks, yes they'll be getting a clean.  Having taken them out, it would be a wasted opportunity given the pretty low cost of those kits.

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Filters removed using my new tool.

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Could probably do it home brew with a self tapper and something to pull with, but this made it very easy.  Screw pointy end into filter, doesn't need to go in very far, then twiddle the knurled end, which pulls the screw into the body and that's it.  New filters inserted and gently tapped home, so just need to clean the injectors and can get them reinstalled.

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Productive day off work today.  I had bought a £10 injector cleaner kit off Amazon.  Consists of 2 plastic towers, for different size injectors, and matching plugs with leads and croc lips to energise the injector.  Pop the leads on the injector and push into the hole at the top of the correct size plastic tower.   Pop the button off a can of carb cleaner and insert in bottom of the plastic tower.  The tower has a tube running up the middle to a space at the top of the tower where the injector fits.  Connect leads to battery, making sure injector clicks, then push down on the can for a shot of cleaner up through the tower and out the end of the injector.  You need to hold the injector in the tower otherwise it will pop out under pressure.  Repeat for each injector.  About 20 minutes work, most of which was setting up.  I had a nice spray pattern for each on the first go so assume all good.

Also managed to get the refurb'd driveshaft on, a couple of suitable punches worked well to help with alignment of the bolt holes, and all torqued up.

Set the valve gaps using my recently acquired Kirk valve tool, made setting the gaps consistently very easy, especially as you can see if the adjuster moves when you tighten the lock nut.  Cleaned up and re-torqued a couple of the rocker shafts so they hopefully won't leak now. New gaskets and covers back on.

Finally, started reinstalling and connecting the fuel and induction parts on the car.  One side done (nearside), bar a few unions/nuts that need tightening.  It needs a bit of thought about the order in which to do bits, but got there in the end.  The other (offside) parts should be much easier.  Maybe running by the end of the weekend...:kickrock:

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23 hours ago, Fuchs915 said:

I had a nice spray pattern for each on the first go so assume all good.

 

Although visual having a good spray pattern ,to avoid assumption , the difference in fuel pressure needs to be monitored, using a pulse meter tool.

 

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