It Works!

[brian j 32]

After running problems that I just couldn't sort out, I got fed up and took the car off the road a few months back,

 

It has since had a new (to me) Longmans head.

A new piper cam (thanks Baz)

A conversion to Motronic 3.1 and Lambda. (Thanks Graham)

 

So given that all of the engine bay wiring has been out and reworked, half the engine had been apart, and I have never done anything like this before, I was a bit worried what would happen when I tried to start it today.

 

Injector plugs off and a good crank to build oil pressure, injector plugs on, long crank - nothing, second go - nothing, third go - just giving up when it spluttered a bit, fourth go - IT WORKS!!!

 

It starts and, for the first time in my ownership, It idles from cold! (Even Miles couldn't make it do that with the Jetronic components I had before)

 

I have some tidying to do and the junk to clear out of it and I can go for a drive tomorrow!

 

How cool is that!

 

(Only the horn, aircon, dodgy paintwork, surface rust on the floor and rev-counter to sort and it will be finished... maybe) But for tonight: :)

Edited August 11, 2012 by brian j

[Anthony 1,003]

Nice one - always a good feeling when it starts and runs first time

[Miles 331 1 Cars]

You'll never look back with the Motronic on there

[vtifan 26]

well done mate,amazing what you can achieve with a bit of thought and sound advice

[sensualt101 31 1 Cars]

another 205 thats gonna return to the roads! well done!

 

i take it that the cars a phase 2 with aircon? any pics?

[brian j 32]

And back down to earth with a bump.

 

Went for a spin round the block and oil is pouring out of the cam cover.

 

I assume the cam seal is not working well (It's leaking into the cam cover, and I haen't disturbed the crank seal...)

 

It drives really well at part throttle openings, but doesn't like WOT at all. Oh well.

 

When I am back in a happy mood and the engine has cooled down, I'll go and have a look, but right now I am sick of burning my fingers and not too keen to get tools out again.

[welshpug 1,657]

Check the tps is wired the right way round, got the map connected right?

[pug_ham 244 3 Cars]

Nice one brian, the little teething issues are easy enough to fix.

 

I've replied to your topic about the WOT problem, I had it on mine at first also.

 

g

[feb 47]

Nice one!

 

Idling problems can be really frustrating especially on a daily driver.

 

Did you have it remapped or is the cam mild enough to work with the Motronic?

[welshpug 1,657]

mine works fine wioth a cam not mapped, though obviouslty may not be running to its fuill potential, still havent managed to get mine on a RR again, but it was 132 bhp as a stock lump and the MP3.1

[brian j 32]

Check the tps is wired the right way round, got the map connected right?

 

The map is connected up fine, I haven't messed with the TPS wiring at all (406 loom), so it should be OK, but I think it's either that or a failing TPS that gets my vote at the moment. Graham had some ideas too.

[brian j 32]

 

Did you have it remapped or is the cam mild enough to work with the Motronic?

 

Following what was said on here, I haven't had it mapped yet. I am running a lambda and the cam is mild, so I think I'll be ok. Once the other jobs are sorted, I want to get it mapped to be right though.

[pug_ham 244 3 Cars]

Before I rebuilt my engine due to cracking a valve & fitted the lambda, I had it remapped at chipwizards & it made 140bhp on waynes rollers.

 

This was also a fresh rebuilt engine but not very a well put together bottom end (my first engine build ), liners & rings from a 20k 1.9 BX Tri engine but with 1.9 pistons & rods on a balanced crank, lightened Mi flywheel & a high flow standard rebuilt head with group n guides, skimmed, a piper 270' cam & vernier so it was properly timed up.

 

 

Raised rev limit to 7,000 & it pulled straight to it but the torque delivery was fantastic.

 

In the breif time I drove the new engine after solving the wondering cambelt due to a schoolboy error, with the rebuilt hiflow head, new three angle seats cut & hand lapped valves, lambda & four branch, it felt even better so I'l looking forward to getting the car built its going into.

 

g

[brian j 32]

I have now got a new cambelt and a Payen cam oil seal waiting for me. Hopefully I'll get it sorted by the weekend.

 

The Payen seal looks a lot better made than the Motaquip one I had so hopefully it will do the trick.

 

(null)

[brian j 32]

Progress is made... The new payen oil seal went in with a generous smear of RTV round the ouside edge. This seems to have worked - no new oil is leaking out. Althouh I am finding oil everywhere - loom trunking, wishbone, driveshaft gaiters... I think it lost around 2 litres in about 1/2 mile!

 

Now I need to figure out how to swap the pins on the TPS and get the lower dash back in and the tools out and take it for a proper shakedown run... Maybe tomorrow.

[pug_ham 244 3 Cars]

Swap the pin order at the TPS plug end, if you have a leatherman / swiss army knife the tweezers are generally very good for removing the pins from the plug without damaging them but I've done it with a tiny jewellers screwdriver before.

 

Slide the tweezers down the side of the pin in the slot & squeeze the locking tab to release it so the pin pulls out of the back of the plug, bend the tab back if needed & slide it into its new position until it clicks / locks in place.

 

You'll need a mulitmeter to check the current order before you swap them.

 

Could you make a note of this order before you swap them so that info is here for future reference?

 

g

[brian j 32]

Thanks Graham. I knew the theory but one pin would not come out. eventually I got it out but it had been deformed when it was crimped.

Anyway the upshot is: no oil leaks, no water leaks, and it goes! Rather well too, although I haven't really given it beans yet ( I need a longer drive to get out of 50 limits and traffic.)

I'll document the pin locations from the tps on the engine management thread later. Now I can start tidying the remaining odds and ends. First on the list are the rev-counter and the aircon...

 

(null)