Lipman '72 911T

jamie · Post by **jamie** » Tue Jun 03, 2008 6:45 pm

OK... my findings were... that I put Swepco engine oil in the gearbox. The parts place sent the wrong stuff, and only noticed after I'd put it in the box and driven the car about.

I don't recommend anyone do this - the box shifted like a load of rubbish to start and became very, very stiff after about half an hour of driving. It felt criminal.

The parts place sent a bottle of 201 gear oil immediately, so I did the change this weekend. No metal bits in the oil, and it was the same colour as when it went in, so I presume no damage was done.

Swepco 201 is much nicer. It's as good as they say

Gary71 · Post by **Gary71** » Tue Jun 03, 2008 7:15 pm

whoops!

Hopefully no damage done. I imagine your reverse gear may have a hint of damage like this

My car also had no gate on 5th / reverse when I got it

jamie · Post by **jamie** » Tue Jun 03, 2008 8:41 pm

Are they meant to have one? Mine used to be a bit of a fiddle and something would 'clack' really loudly when putting it into reverse, but now it just goes in without any noise.

Also, what is the name of that gear, and the one that's hitting it, in preparation for the day when I do my inevitable gearbox rebuild?! As with all things mechanical on this car, I need to price it all up in my mind and psych myself up first.

Gary71 · Post by **Gary71** » Tue Jun 03, 2008 8:49 pm

it's name is....

Reverse

The other one is the reverse idler.

Unless it's got big bits of tooth missing I'd just leave it alone. It's not exactly a high loaded / high use gear.

The 'clack' is the gate hitting the underside of the gear shift housing when it moves. Mine did have the gate, but the springs were missing. After replacing these life was so much easier, I could get third from choice, rather than luck!

A thick layer of grease clams the clack down

jamie · Post by **jamie** » Tue Jun 10, 2008 1:33 am

So I spent the last few weekends fighting with my carbs, and now I've had enough. I eventually got the Zeniths back to a sweet state of tune, but I know it won't be for long, because they are fickle gits.

So this evening I bought some injectors and a fuel pressure regulator, thus marking my first brazen stride forth into the exciting world of EFI.

Plenty of idiotic posts to follow...

Gary71 · Post by **Gary71** » Tue Jun 10, 2008 7:44 am

Good luck

As you know I gave up and ended up fixing the Zeniths properly

jamie · Post by **jamie** » Tue Jun 10, 2008 9:22 am

50% of me thinks I should still keep thinking I should just get the Zeniths tuned up by Bob Watson, the other 50% thinks that there is a reason they fit EFI to modern cars. I like the idea of better efficiency and maybe a bit more power, and also -maybe- future-proofing the car against any legislation they plan to dump on old cars.

The Zeniths are still in good condition, so I'll keep them stored and one day the next owner will have a choice between EFI and a stock 72-style engine.

And the system I plan to use isn't too radical. It's tried and tested and uses a CIS intake: http://www.bitzracing.com/products/Part ... index.html

jamie · Post by **jamie** » Wed Jun 11, 2008 11:11 pm

Got my MegaSquirt ECU last night.

Feeling brave.

Gary71 · Post by **Gary71** » Thu Jun 12, 2008 7:40 am

Good luck with that! I bottled it and bought mine assembled.

I'll dig out my old megasquirt configuration file for you, it may (or may not!) help as a starting point for the ignition side. I'd recommend doing spark first, then fuel. Getting both running first time out would not be a mapping challenge I would take on.

impmad2000 · Post by **impmad2000** » Thu Jun 12, 2008 8:48 am

Wow Jamie

In at the deep end then !
Do you have a MegaStim ? well worth it, I have a suitable item you can borrow (A bit home made, but does the job.)
How is your soldering ? If OK, then you'll be fine. If a bit pout of practice, then pop to Maplin, buy a little project board (Kit of some kind ) and do a bit of practice work on that.
Follow the assembly instructions stage-by-stage, test each stage as you go. It really is quite stragiht forward. Have fun. If you do run into trouble, I'm happy to help.
Are you going for the Relay board or wiring the relays and fuses into the loom ?
Gary, Jamie is keeping the points and dizzy (for now at least) and so fuel first

Cheers
Tim

jamie · Post by **jamie** » Thu Jun 12, 2008 10:46 pm

I don't have MegaStim, but the guy I bought the ECU off does. I got home from work at lunchtime today, so I spent the afternoon putting the ECU together.

This evening I took it over to his place and he tested it for me. Everything works, except the tacho input because I didn't wire-in any bridges for that circuit. I need to work out which bits to bridge for the type of tach signal the car uses.

Injectors and fuel pressure regulator have arrived at friend's house in the States. Just paid (very little money) for a 2.7 CIS intake, which also has to come from the US. Having some custom spacers made up for the intake ports so I don't have to notch the head for the injectors. Still awaiting final shipping price for Bitz kit.

Wicked.

Oh yeah - fuelling only, for now. Maybe spark later on if it's worth the cost...

jamie · Post by **jamie** » Thu Jun 12, 2008 11:36 pm

Tim - what's the deal with the relay board vs wiring relays in to the loom? It looks like the only relay used in the Bitz kit is for the fuel pump, so do I really need the board?

Is it possible to use the pump relay already on the car? I don't know where it is, but if it is by the fuse box in the front, I have to put a high pressure pump up there somewhere, so might that be the cleanest and simplest solution?

jamie · Post by **jamie** » Mon Jun 23, 2008 1:46 pm

Lots of bits arriving with each day! Got injectors, FPR, FP gauge and CIS intake system (minus throttle bell crank - grr

).

impmad2000 · Post by **impmad2000** » Mon Jun 23, 2008 2:16 pm

jamie wrote: (minus throttle bell crank - grr ).

I've got one, I can certainly loan you till you can get a replacement. I don't really want my kit to be with missing parts.

what's the deal with the relay board vs wiring relays in to the loom?
Is it possible to use the pump relay already on the car? I don't know where it is, but if it is by the fuse box in the front, I have to put a high pressure pump up there somewhere, so might that be the cleanest and simplest solution?

Sorry, just seen this...
There are usually two relays, a power relay and the fuel pump relay. Just wire it in if that's cool with you.
Pull the feed to the fuel pump relay at the fuse box, hook into the fuel pump feed here. The fuel pump feed can also power the O2 sensor heater, if that is the style you've got.
Cheers
Tim

912uk · Post by **912uk** » Mon Jun 23, 2008 6:29 pm

Nice project Jamie.. reminds me of my ZX81 you could buy in kit form!!!

and save a 5'ver but take 4 weeks to do it and de bug it.

good luck