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82
Technical / Re: rev counter issue
Last post by mintysgt -
Hi Monkey,

Can you confrim the correct timing procedure for the 1.8 pb digifant engine please. As i will be honest i read its the only thing the haynes manual has correct for these mk2's but im not sure if that mocking the manual in this situation. as its not very clear if im honest. please for give i am old lol
83
Members' Cars / Re: G135EPB 8v GTI
Last post by ianmac86 -
A little bit more time spent on the gearbox. I took the crown wheel and open diff down to a mates and used their neighbours pillar drill to drill out the rivets.

I snapped the drill bit on the last one 🤦‍♂️ so ground the rivet down with a finger file and tapped it out. Also tapped my hand in the process!

Went to Dan's and fitted the Quaife to the crown wheel and torqued the ARP bolts to 54 lbft.

Gave the casing and gears a reasonable clean down with brake cleaner.

Sealant applied to the casing and bolts all torqued down.

We stopped for a cheeky burger before calling it a day for other commitments. Just needs 5th gear fitting, the new seals and cups and selector I think. Then it can go back in. I'm not looking forward to lifting it again!
85
Engine & Gearbox / Re: Won't stop priming
Last post by Iainh99 -
Hi thanks for the reply, I've got a spare ECU so will try that tomorrow. I'm going to check the wiring with a multi meter before I commit to plugging in my only spare.

I've already dropped the oil, so good shout.... it was significantly watered down with all the fuel going into it.
86
Engine & Gearbox / Re: Won't stop priming
Last post by Monkey -
Hi,

Is it possible your main earth has become lose?
If so, the chances are your ECU has died:
When the main earth loosens, the car uses the ECU earth as the main and it fries it.
The main symptom for this is the injectors being stuck open.

First thing you need to do is drop your oil out and replace it with new, then fit a new ECU and try again.
If you successfully get your car to fire now, the diluted oil will kill your engine... ask me how I know!!
87
Engine & Gearbox / Won't stop priming
Last post by Iainh99 -
Hello,

So I'm putting my 1988 golf gti 8v back on the road, I recently passed its mot and returned home. It'd been off the road for around 5 years.

Couple of days go by and I reckon it'd be a god day for a blast. However it won't start. Nothing not even a click.

Tray the key a few times, try charging the battery and try the key again.

So I swap the starter for a spare one as im sure i saw it smoke a little and try again. With the replacement in this time the engine turns but the pump won't stop priming..... so much so that petrol starts coming down the exhaust having filled the cylinders.

I've changed the fuel pump, fuel regulator, vacum hose to regulator, injectors, pump relay, I've cleaned earth's point and connectors, I've made sure the fuel supply and return lines aren't blocked

But it still will not stop priming. Any ideas? Cheers
89
Members' Cars / Re: G135EPB 8v GTI
Last post by ianmac86 -
28/09/25 – 02A & 02J Gearbox Stripdown for Quaife Swap

After a few months of it sitting at Dan’s place, I finally went over to strip down my old 02A gearbox with the Quaife LSD(with help). I'd swapped this box out for a 02J with a 3.9 FD a while back, but now it’s time to move the Quaife across to the new box.

I also brought the replacement 02J gearbox with me — this one had never been opened before. Stripping both boxes down was actually easier than it probably looks in the photos, but the 5th gear on the 02J was a nightmare to get off. Took a lot of persuasion and finally came off with a puller.

The diff rivets can now be drilled out that’ll be the next job.

Since the seals have been disturbed, I’ll be replacing:

Input shaft guide sleeve 02A141180A

2x Output shaft seals 084 409189B

Interestingly, the input guide has an 02A part number and a late 1999 date stamp, which is interesting to see, maybe a crossover period for early 02J parts?

I’ve ordered the new seals and bits and should be collecting them on 30/09/25, with a view to rebuilding the box on 01/10/25, if all things align.

After that, it’s just a case of getting it fitted back into the Mk2 and seeing how the 3.9 FD and Quaife feels on the road.

🙂







90
Technical / Re: rev counter issue
Last post by Monkey -
As above, when I restored my red one, I had to swap out the injectors for a similar problem.
Also, go back to basics, check fuel and spark.
I'd pull the plugs out, then turn it over and make sure you have spark.
Then put them back in (dry), take off the coil lead and try turn over again, pull out all the plugs and make sure they're all wet, that'll account for fuel. If you have plenty of both, it's either mixture, or timing.