oil leak - is it diesel or engine oil

[ronhud]

I have noticed a small oil drip on the road when I drive off. So far I've not been able to trace the source but I am wondering if I was to catch the drip is there any way to tell if it is diesel or engine oil?

[francophile1947]

Smell it - they're totally different

[mikeonb4c]

Smell it - they're totally different

It may not be as easy as that unfortunately (from my own experience) as (if it is diesel) by the time it has made its lazy way from dripping off the pump, permeating through the sound deadening of the undertray, mixing with any other cack, and then finally dripped off onto the road, the distinctive smell of fresh diesel has quite likely been lost, and its thickness may have altered too. My first instinct would be to raise the drivers side engine cover, run the engine and look for drips from the pump underside. Also, run my hand along the pump underside and see if it gets wet with thinnish oil.

[M 80NGO]

Have a lill look at this

http://www.igmaynard.co.uk/bongo/forum/ ... =3&t=47378

[ronhud]

Ihad a leak previously from the pump o rings and the garage fixed that. I have now discovered a likely source of the leak.

http://i243.photobucket.com/albums/ff26 ... 113524.jpg

In the middle of the photo therte is a metal pipe with a 90 degree bend in it. It continues out of the top of the picture and has a small length of braid covered hose connecting it to a further bit of metal pipe. The hose has split at the top - also there are no clamps on either end. When I start the engine fuel floods out of the top joint for a cple of seconds then stops. So I'm not sure what the function of this pipe is and wonder whether it only carries fuel when the engine starts or sporadically whilst running. My fuel consumption does seem to have been high recently.

I would be grateful for any help re what it does and what spec replacement pipe/clamps I need to replace it.
Thanks

[ronhud]

Update - I found I had a bit of piping just the right size(never throw anything away!) and with a bit of finangling around stuff in the way got it fitted. From various other threads it seems it is not supposed to have clamps. So filled the tank and now eagerly awaiting a better fuel consumption.

[bigdaddycain]

I hope it does the trick Ron.

I've been lucky insofar as my fuel pump has been concerned. But i seem to recall when looking at another leaking pump in the past, that it barely leaked when the bongo was started from cold, when the glowplug relay had stopped it's pulse on tickover (many minutes after a cold start up) The leak increased significantly.

For testing purposes (now it's a tad warmer) The glowplugs can be easily (temporarily)disabled by unplugging the temp sensor plug. Just remember to plug it back in again afterwards!