Mr Googler
Well-known member
Still wrong…as I understand…they leak due to not seating properly due to carbon build up.
A new spring will do naff all. This is like pulling teeth ?
A new spring will do naff all. This is like pulling teeth ?
Where to find an injector puller for Volvo Penta engine?
- Thread starter Lucas Gan
- Start date
Lucas Gan
Active member
No harm. Just because the structure of the injector is quite simple. Not many parts can play around really. So I will do this experiment to change the spring. I have ordered the spring from the Volvo shop already, should deliver in two days.
adey
Member
If you’re doing it yourself you’ll just need a spring, a couple of washers, some wd40 and one of these.
Volvo tamd63 | eBay
Volvo tamd63 | eBay
volvopaul
Well-known member
The reason you get poor atomisation is due to wear on the nozzle and a weak spring .
if they are more than 10 years old or have done 1000 hours change the nozzle , test opening pressure , if it’s still low then change the spring .
Its pointless trying to do this yourself when a Bosch shop can guarantee them to work perfectly.
if they are more than 10 years old or have done 1000 hours change the nozzle , test opening pressure , if it’s still low then change the spring .
Its pointless trying to do this yourself when a Bosch shop can guarantee them to work perfectly.
Croftie
Active member
As Mr G says, new springs will do nothing if there is a problem sealing either from carbon or pitting of the seats,
BTW Belzona is not suitable for repairs to holed pistons.
BTW Belzona is not suitable for repairs to holed pistons.
volvopaul
Well-known member
I’ve just
looked at your advert , how many hours on it and location please .
adey
Member
It’s not mine. I just googled it.
The point I’m making is that it will be expensive if it goes wrong.
There’s a mobile number in the advert though.
The point I’m making is that it will be expensive if it goes wrong.
There’s a mobile number in the advert though.
Lucas Gan
Active member
Thanks, everyone. I will keep all your advice in mind.
@volvopaul I assumed the injectors are as old as the engine which is 28 years old. Engine just around 990 hours. So yes, may bring them to the pro after the experiment.
@volvopaul I assumed the injectors are as old as the engine which is 28 years old. Engine just around 990 hours. So yes, may bring them to the pro after the experiment.
Praxinoscope
Well-known member
Where you will get the inevitable ‘sucking of teeth’ and the ‘Who did this for you?’
Lucas Gan
Active member
Okay. Here is the update. I removed another port-side engine injector. So a total of 12 injectors are all out. The 6 injectors from the port engine are all no pop action but spray only. Then I double-check the other 6 from the starboard engine and end up that only 2 of them can continue doing pop action. Others are doing a few pop actions occasionally. So, in total only 2 workings okay out of 12. I should recondition all of them doesn't matter whether it working or not now.
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Mr Googler
Well-known member
Bilgediver
Well-known member
There is a lot more to it than just checking the pressure setting and as you might not notice what could be a major problem if re used It might be a good idea to send them to a specialist before you put an injector back with an incorrect spray pattern or
other faults that could result in engine damage. to engine damage.
Bilgediver
Well-known member
A trained injection specialist will know which can be serviced and reused and which need to be replaced. Some may be recovered by servicing. Not difficult if you are experienced and have the necessary tools and materials.
Bilgediver
Well-known member
Even if you buy new springs they will probably not be an instant fix and you may still have to set them up so that the injector to breaks at the correct pressure. this will either be done using shims or more usually adjusting the injector spring bolt. I would suggest you take all to the service centre before you come back asking how to service the seats and needles in order to correct the spray characteristics. Something I had to learn to do many years ago and something that should be done in spotless sterile conditions. something you will know if you have visited an injection specialist. I had the benefit of taylor made sets of tools for the engine and generator injectors on the ships I sailed on which were provided by the fuel injection companies all items that are easily reproduced on an instrument lathe but you do need to know the needle and seat angles you are trying to achieve. Doing it your way is very much hit or miss.
I do hope that if your cylinder heads are fitted with copper injector sleeves that non of them moved when you yanked out the injectors.
Lucas Gan
Active member
Is it my injectors are much simple than most people thought? They are mechanical types. No adjustable screw or calibration part. Only one spring (item 5 in the picture), and washers(item 4 in the pictures) if needed to add one or a maximum of two. No myth at all. I don't feel dangerous to just replace a spring and remove/add washers. The 10 of my current injectors are already not working well, but the engine still working normally except a bit smokey due to unburned fuel I think. So, I feel safe experimenting. The engine is not likely to go worst. I will report here two days after I receive the spring.
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Mr Googler
Well-known member
my removal tool dimensions fit on the sleeves. Never say never but pretty confident that won’t happen.
I think that is the least of the issues here. He seems determined! Horse to water and all that ?
Lucas Gan
Active member
@Mr Googler Yes, your removal tool perfectly fit the sleeve. So all sleeves are safe and have no problems at all.