Author Topic: Trials and tribulations of a cheap G40  (Read 70831 times)

Offline z3i

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Re: Trials and tribulations of a cheap G40
« Reply #75 on: July 09, 2014, 06:26:48 pm »
Should have filled the cavitys up with concrete... Saying that, would have fallen straight out the rust holes at the bottom :P

Offline physicsfool

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Re: Trials and tribulations of a cheap G40
« Reply #76 on: September 11, 2014, 09:27:47 am »
So time to get over my moping and start this up again. I have decided to keep the engine after plenty of changes of heart but i want to finish and the distant memory of how it drove also makes that decision a tad easier.

As usual any rebuild starts with a message to Mr Mirfin and a box load of febi parts later i am well on my way


I have managed to aquire a space in my mates garage as my engine building experience is non-existent and he is a professional engine builder, so first stage is to dismantle and clean:


and now to pop into the tank of gunk remover


It smelt sweet like almonds which scared me all the more.

But the final product was good, and everything was smelling clean when i finished


Then stripped the head, as i want it flow testing and a bit of porting.


Took the block to the local engineering spot who are decking it and looking at the tolerences of the bore, unfortunately the top rings of the pistons have worn the top of the bore so i need a rebore to sort that.

As there isnt much price difference between cast and forged pistons i will be going for 77 mm forged wossners, against the advice of my mates as he reckons 76 mm to allow for a rebore down the line, but i think i have aquired a set up to suit the slightly larger pistons so that is my preference at the moment. Wossner currently have a 3-4 week back order so its a time game at the moment.

Should be picking up a few new parts over the coming weeks but mainly just waiting on the pistons 

Offline sleag40

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Re: Trials and tribulations of a cheap G40
« Reply #77 on: September 11, 2014, 05:32:57 pm »
Good stuff! Do you have something to put it all in yet?

Offline physicsfool

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Re: Trials and tribulations of a cheap G40
« Reply #78 on: September 11, 2014, 06:31:35 pm »
No shell yet! Keeping my eye on a few. But main priority at this stage is the engine and sent the loom off for a full refurb

Offline z3i

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Re: Trials and tribulations of a cheap G40
« Reply #79 on: September 11, 2014, 07:33:56 pm »
Yes martin!!!! Such a lad!! Major man points for not selling up and buying a honda..... Wait a minute...

Offline Yoof

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Re: Trials and tribulations of a cheap G40
« Reply #80 on: September 12, 2014, 12:08:19 pm »
Yes martin!!!! Such a lad!! Major man points for not selling up and buying a honda..... Wait a minute...

You're doing it wrong, I'm selling a Honda and bought another Polo...

Offline Etches

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Re: Trials and tribulations of a cheap G40
« Reply #81 on: September 14, 2014, 02:36:02 pm »
Well in lad, defo the most fun when building a car is building the engine up!

Offline physicsfool

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Re: Trials and tribulations of a cheap G40
« Reply #82 on: September 14, 2014, 10:27:10 pm »
Yeah engine work interests me, bodywork doesn't as much! Think if I need owt doing I will just drop it off at Taylor's

Offline physicsfool

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Re: Trials and tribulations of a cheap G40
« Reply #83 on: September 18, 2014, 11:43:15 am »
Got my refurbed loom back, it looks really good and didnt cause any stress. I priced up the cable and bits separately and there wasnt a big difference.



He even re-wrote the tags, what a boss


Now i just need some pistons and a shell

Offline SamG40

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Re: Trials and tribulations of a cheap G40
« Reply #84 on: September 18, 2014, 12:43:21 pm »
Who did the loom? What did they do exactly?

Offline physicsfool

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Re: Trials and tribulations of a cheap G40
« Reply #85 on: September 18, 2014, 12:55:27 pm »
Who did the loom? What did they do exactly?

Rayne Automotive, check company feedback section for details. Replaced the whole lot with tri-rated thinwall cable and added the uprated headlight module, but re-used the connectors as they were all in decent condition.

I reckon a fresh loom with a freshly rebuilt engine should make a big difference
« Last Edit: September 18, 2014, 12:59:11 pm by physicsfool »

Offline z3i

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Re: Trials and tribulations of a cheap G40
« Reply #86 on: September 18, 2014, 01:22:44 pm »
That looks the Bollucks!!!! Nice one dude!!!

Offline Etches

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Re: Trials and tribulations of a cheap G40
« Reply #87 on: September 18, 2014, 01:40:34 pm »
Looks banging that dude, might be tempted to use em myself! Got those G60 injectors ready for when you need em.

Offline physicsfool

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Re: Trials and tribulations of a cheap G40
« Reply #88 on: September 18, 2014, 02:20:27 pm »
Looks banging that dude, might be tempted to use em myself! Got those G60 injectors ready for when you need em.

Cheers lad, get paid on the 26th, those pistons have cleared my bank account for the time being.
« Last Edit: September 19, 2014, 11:32:25 am by physicsfool »

Offline SamG40

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Re: Trials and tribulations of a cheap G40
« Reply #89 on: September 18, 2014, 10:11:21 pm »
Thats really cool. Twenty odd year old wires that will have been subjected to thousands of heat cycles could probably do with replacement by now. Probably money well spent to avoid any future issues.