307 1.4HDi Injector testing

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doctle
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Re: 307 1.4HDi Injector testing

Post by doctle »

jgra1 wrote: 30 Aug 2017, 22:24 hi Doc, yes do the leak off test yourself.. easy peasy.. I used a redundant numberplate as my backing board (anything will do) I bought 4 bottles of water and drank them ! and had some tube lying about .. As Steve says, the final point on Ing#4 can have a bit more tube doubled over and clamped with a zip tie to stop fuel leaking out from that*.. if you want I can send some tube or just send my kit for postage (I would like it back :) ) or just get some tube online and make your kit..

J

* the tube that ran to this injector (or from it) did leak a bit when disconnected, I don't quite know why but didn't spend any time thinking about it.. I blocked it with a 6mm bolt

My leak off may be in the blog linked below, an early pic I would guess,, I havent done anything with blog for ages so apologies to anyone who looked ;)

I'm really just needing the size of tube! Does the return pipe go back to the filter? Thanks for the offer mate. I bought an injector off a guy on ebay 3 months guarantee so hopefully it'll work out of the box!
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Re: 307 1.4HDi Injector testing

Post by jgra1 »

I dont know for sure, but maybe 6mm internal? I cant measure as it's a walk away from here and time is slim.. just grab a meter or 2 of 6 and 7mm tube online for a couple of quid and get it sent over? useful and cheap>?
doctle
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Re: 307 1.4HDi Injector testing

Post by doctle »

I just read again that screen washer pipe is the correct size so I'll try that when I get the new injector. I don't know how long it will keep going I added a bottle of Lucas injector cleaner, some 2 stroke oil and half a pint of petrol to half a tank of diesel I'm hoping it will clean the injector a little until its replaced
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doctle
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Re: 307 1.4HDi Injector testing

Post by doctle »

I got the ebay leak off test kit but I'm no further forward, all looks good, one is idle other is 2k rpm, any suggestions?

https://www.dropbox.com/sh/aic3jc85sui4 ... fsi3a?dl=0
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Re: 307 1.4HDi Injector testing

Post by Bick »

It looks like the two on the right may be passing a bit much but i have seen much worse and they may be within tolerances. What you need now is the exact figure you need to measure too - phone an injector specialist? But you may have just confirmed you do not have an injector issue which is what i suspect.

With no diag equipment or unwilling to pay for a diag from Citroen you may be changing parts for no reason - if you wish to do this replacing the EGR is you next choice of part - i advise you if you do take this route to fit a genuine part as there are a lot of poor EGR valves on free bay.
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Re: 307 1.4HDi Injector testing

Post by doctle »

Bick wrote: 08 Sep 2017, 09:42 It looks like the two on the right may be passing a bit much but i have seen much worse and they may be within tolerances. What you need now is the exact figure you need to measure too - phone an injector specialist?

There's only one specialist close to me. He wants to do the leakoff text himself costing €200.00. I thought the results didn't look too bad? I maybe should buy Planet nobody seems to have it near me but would it help? I'm starting to hate this car! I read somewhere that 10% deviation was acceptable again I don't know. That level of diesel is after a minute idle and a little less, maybe 50 seconds revved. The car starts easily and according to the dash display is doing 64mpg, it passed emissions test last week.
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Re: 307 1.4HDi Injector testing

Post by myglaren »

The leakoff test results look acceptable to me and the geezer wanting €200 for doing that should be in jail for daylight robbery.
doctle
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Re: 307 1.4HDi Injector testing

Post by doctle »

1 and 2 are a bit higher maybe both together are off enough to make it misfire? I think I will change the 2 with the highest leak and do another test. I can buy a complete engine minus the turbo for £60.00 might be my plan C, as usual there is no plan B
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