Thread: D2a TD5 - my Provent 200 installation

I have just finished installing the Provent 200 on my TD5 D2a HSE. As there is frequently someone asking for details on installations I thought I would post mine up to assist.

I purchased the Provent 200 with a drain tube and tap from United Fuel:



To make life easier I got some 19mm aluminium hose barbs with a tapered thread designed to go into the Provents inlet/outlet and cut a thread. They have an o-ring on them to seal. You just wind these in carefully with a spanner to change the Provents fittings down to 19mm inline with the rocker cover and inlet bards on the TD5 motor.



I removed my second battery tray from the rear passenger space near the turbocharger as I'm making some changes to this setup, have been annoyed with it being in the way frequently for other tasks and wanted the real estate for the Provent. Using the two M6 nutserts previously fitted where the safety switch mounts as the start point for my bracket:



The bracket is just a cut off of aluminium plate which I drilled two 6.5mm ID holes for the safety switch and two 11mm holes for M8 nutserts to be installed for mounting the Provent. An S bend was put in it using a vice, heat gun and hammer.





Hose recommended by the local hose specialist:



All mounted:



Drain tap accessible from underneath with a barb for fitting a hose extension too.



All up with all the parts previously acquired and ready, it took me an hour from start to finish to make the bracket and fit it all up this morning. Pretty quick and easy and no waiting for epoxy to dry!
Not 100% sure that it's strong enough. I'm going to look at fitting a brace to the far side but the hoses do also seem to help to hold it in place and if the bracket was to fail they would prevent it from falling down onto the exhaust etc.
I would have preferred thinner walled hoses for it as these ones are very thick and therefore firm.
I think that I would like to change it in the future so that it drains the oil straight back into the sump rather than having to be emptied but I wasn't prepared for silver soldering into the turbo oil drain or centrifugal oil filter drain (still not sure which would be better to use for this purpose?). The benefit of this would be less oil waste (as the oil remains in the system) and less maintenance effort required (as it no longer needs to be drained manually).
For a small 2.5L engine, the engine bay just seems to keep looking busier and busier!

Hope this might help someone else with some ideas. It was relatively easy and did not require any special tools other than the nutserts (but a nut and bolt setup could probably also be used). If I had the fabrication tools and skills I'm sure there are much better options but this is in line with what I have available to me at present.

Originally Posted by whitey56

When did you decide to fit the Provent, was the motor producing blowby or did you fit it early as a prevention thing.
My td5 has 270,000ks to myself it is not a fumey engine but i only have service history for the last 70,000, it could of had work earlier than that, i'm just wondering if i should fit one now.

The Provent reduces the blow by going into the engine by about 90%. So you need to clean the inter cooler every 400k km not every 40k km. Another 400k km has my car at 700k km and 20 years in the future. The next time I clean the inter cooler and inlet pipes will be the last time.