DPF wash out and rebuild

[Jarred]

Wow, great effort, and great job.

really good to know that this can be done!

[getjet]

Very interesting read mate. Good stuff Greg.

How long do you reckon' it will last? Does the material in the DPF have a 'working' lifespan?

[Greg Roles]

Miro those DPF regen "chemicals" are designed to help burn the black soot. The better ones are Cerium based, but soot per say isn't the problem, it's the white non regenerable oil ash. You need to physicaly remove it. The white ash slowly fills the cannister, and leaves less and less "space" for the regenerable black soot. Look how clean my core looks at 5 years just after a regen when I opened it!!

My 200km drive yesterday showed me that the core is back to behaving like it "used to". In 200k I saw hardly any soot collection, and I'd assume it is filling the walls of the core at this stage, and won't start showing a load for a while yet. From new the core used to regen about once a 1000kms, and I will monitor the regens to see just how much of that capacity I have back, but bottom line is I have extended the lifespan already, and it's driving like a champion, even feels "peppier".

Get - The physical SiC ( Silicon carbide ) core is basically like a manufactured pumice stone, it is just a physical trap, and should last indefinately. The Platinum coating to aid emission reduction and act as a Cat will however deteriorate, but any decent "cat" should last 200-300kms on normal cars at least. Remember a DPF is suposed to "fill" at around 150kms.

Now how to make my sore New Years head feel "peppier"!

[tigger73]

Now how to make my sore New Years head feel "peppier"!

How about give that a back-flush too

[Transporter]

Miro those DPF regen "chemicals" are designed to help burn the black soot. The better ones are Cerium based.

I didn't mean the tank additive.

[neil]

Great read mate.

Could be an after market business in the making there. cleaning out or designing a canister that can be
easily opened and closed by the owners and retrofitted.

[Greg Roles]

The Carformance "plan" is to offer various re-cores, and I'd V-clamp the system, stuff cutting it open all the time. The bitch is dealing with China, they spam the hell out of me all the time via the website, but when you actually WANT something.......

[Greg Roles]

I didn't mean the tank additive.

Sorry mate, I forget you have trade knowledge, but I question how any chemical would remove ash.....soot yeah, but ash is an end product. Look at any campfire!

[Jmac]

Good stuff, ive had a couple that have broken up in service now , so replacement cores would be the go if poss. .
Jmac

[brad]

Brad, that's the normal process you find workshops doing on YouTube, with people just blasting a gurney up the outlet, but you really would need immense pressure to clean out the very baked in ash in my opinion, and little came out of my core till I put the gurney nozzle right up to the surface of the core outlet and blasted away. .

I was thinking like a firehose attached to the outlet - huge volume of water. Probably an unrealistic idea