Mercedes 300D conversion

[Fitian Was here Find all posts View Profile Close Fitian]

Re: Mercedes 300D conversion

Hi Tony,

I contacted Paul about a pollak valve. His current price is $99 but he is out of stock for the next two months. I know other supplier in Australia are selling this item for $140. I had to buy one from e-bay for my other 300D two weeks ago that cost me $109.

Cheers,

Fitian

[Tony From West Oz Vice Chairperson of WARFA Find all posts View Profile Close Tony From West Oz]

Re: Mercedes 300D conversion

I stand corrected on the price.

Regards,
Tony

[Fitian Was here Find all posts View Profile Close Fitian]

Re: Mercedes 300D conversion

Just updating ...

I have taken David's advise and put both Heat Exchangers in series rather than T 'ing them to the coolant system and noticed a great difference and even the white smoke I used to get while idling at traffic lights has gone.

Here are some photos...









Also someone has asked me on how do I change the CAV element with the CAV setting in such a tight place.

I thought of it while setting things up. Here is how I do it with total comfort...




Cheers,

Fitian

[Guest Close David]

Re: Mercedes 300D conversion

Hi Fitian,

Great Pics and engineering.

I'm glad the modification with the HE was so successful. I mentioned this on the infopop forum and no one was able to tell me why the HE's are normally T'ed. I think it is a practice that has become the the way people do the conversion only because that is the way others have done it before them. As it seems more effective and beneficial to put the HE's in series, perhaps people will start changing the standard conversion methodology.

Your readily detachable filter and bucket setup is very well thought out and could be a convenient solution to a problem with space many people may have.

Well done on an innovative and very practical setup.

[ashbee0 Biofuels Forum Newbie Find all posts View Profile Close ashbee0]

Re: Mercedes 300D conversion

Hi,

I found your post very helpful. I've got a 1983 300D that i intend to convert in the next couple of months. Can you recomend any other resources as a place to start. I'm new to this but have good machanical know how and freinds that can help, just need to do some more reading.

Regards

Ashley from Cronulla

[ashbee0 Biofuels Forum Newbie Find all posts View Profile Close ashbee0]

Re: Mercedes 300D conversion

Hi,

I found your post very helpful. I've got a 1983 300D that i intend to convert in the next couple of months. Can you recomend any other resources as a place to start. I'm new to this but have good machanical know how and freinds that can help, just need to do some more reading.

Regards

Ashley from Cronulla

[ashbee0 Biofuels Forum Newbie Find all posts View Profile Close ashbee0]

Re: Mercedes 300D conversion

Hi,
I found your post very helpful. I've got a 1983 300D that i intend to convert in the next couple of months. Can you recomend any other resources as a place to start. I'm new to this but have good machanical know how and freinds that can help, just need to do some more reading.
Regards
Ashley from Cronulla

[Fitian Was here Find all posts View Profile Close Fitian]

Re: Mercedes 300D conversion

Ashley,

Thanks for your kind comment. I'd be very happy to help you and give you a hand if you like me to. Cronulla is not that far from me.

Regards,

Fitian

[Fitian Was here Find all posts View Profile Close Fitian]

Re: Mercedes 300D conversion

Just an update guys.

In regards to setting up all heat exchangers in series - I realised that my heater was not working and had a fault which allowed the coolant to flow. While in my wife's car things are working as they should do which shows that setting heat exchangers in parallel are the way to go.

Thanks for all the thoughts.

Fitian

[MBE300TD1998 Biofuels Forum Newbie Find all posts View Profile Close MBE300TD1998]

Re: Mercedes 300D conversion

Does anyone converted a 1998 mercedes E300 TD? I am about to start one i would like some feedback.

[Fitian Was here Find all posts View Profile Close Fitian]

Re: Mercedes 300D conversion

Hi and welcome to the fun world

Post some photos of your engine bay and I am sure all of us here will try to help.

Where about are you?

Cheers

[RODEONICK Too Busy To Bio. Find all posts View Profile Close RODEONICK]

Re: Mercedes 300D conversion

Tony says some veg oil in it will help with it keeping it lubricating properties, but 300D injector pumps are lubricated with engine oil, not so much fuel oil, so it should not be a problem.

This doesn't sound right to me. my 300D doesn't appear to be lubricated by engine oil. Can somebody please explain this to me?

Thanks in advance.

[Tony From West Oz Vice Chairperson of WARFA Find all posts View Profile Close Tony From West Oz]

Re: Mercedes 300D conversion

Originally Posted by Captain Echidna
Tony says some veg oil in it will help with it keeping it lubricating properties, but 300D injector pumps are lubricated with engine oil, not so much fuel oil, so it should not be a problem.

This doesn't sound right to me. my 300D doesn't appear to be lubricated by engine oil. Can somebody please explain this to me?

Thanks in advance.

Nick,
What I said is correct, but is more important in engines with rotary IPs.

Capt Echidna is also correct in that the Bosch inline IP in the 300D and other similar engines is lubricated by engine oil.

In some earlier models, the IP had its own sump and filler cap. ion the 300D, the IP receives oil from the engine which drains back to the engine after passing thru the workings.
The fuel still needs to have lubricating properties as it lubricates the valves in the IP High Pressure outlets (to the injectors) and the moving parts in the injectors themselves

I hope this helps,
Tony

[RODEONICK Too Busy To Bio. Find all posts View Profile Close RODEONICK]

Re: Mercedes 300D conversion

Nick,
What I said is correct, but is more important in engines with rotary IPs.

Capt Echidna is also correct in that the Bosch inline IP in the 300D and other similar engines is lubricated by engine oil.

In some earlier models, the IP had its own sump and filler cap. ion the 300D, the IP receives oil from the engine which drains back to the engine after passing thru the workings.
The fuel still needs to have lubricating properties as it lubricates the valves in the IP High Pressure outlets (to the injectors) and the moving parts in the injectors themselves

I hope this helps,
Tony

Hi tony i should have been clearer.
I don't disput your comment on the lubricity of the veg at all, i shouldn't have put that in.sorry

My 83 300d doesn't have any oil lines to or from the IP. it doesn't appear to have its own sump or filler either. strange.
If you look closely at the first and second pictures you can see threaded holes that haven't been drilled. Is this where lines would usually attach. I hope these help you explain this to me Thanks
Nick

[Tony From West Oz Vice Chairperson of WARFA Find all posts View Profile Close Tony From West Oz]

Re: Mercedes 300D conversion

While I don't know the path the oil takes to the IP, if I take off the side plate of the IP, behind the fuel pump, the oil in there is black, indicating that it is sump oil.

Perhaps it comes via the mating flange of the IP, where it contacts the timing chain gallery.

Tony