FIXED: Help Please! Car won’t start after oil change.

For all Carb and Injection engines, standard or modified plus non-standard engine transplants. Heads; Blocks; Cooling (including heater issues related to the cooling system); Mounts etc
Forum rules
Hints, tips and guides for repair and modification - the FAQ section on the main website is worth checking first for information relating to common faults and technical help. Useful posts and guides will be added to the FAQ http://www.sciroccoregister.co.uk/scirocco-faq
smudger28
Posts: 124
Joined: Sat Jan 14, 2023 7:09 pm
fill in the right answer: 15
Location: Falmouth, Cornwall

Re: Help Please! Car won’t start after oil change.

Post by smudger28 »

Hi Mark

So I'm a bit reluctant to mess with the throttle idle screw, as we put the idle screw next to the metering head back to where it was post broken connectors on the AAV and she's running like a dream albiet a tiny bit rich still. A friend is going to look at setting up the timing on Friday to ensure it's tuned properly.

I've still got to find an air pipe that has nearly chaffed through on the AAV but she'll last for now.

The car is not hunting at all now.

I think I can close this rather long thread off.

Massive thanks from the boy and me to all you guys that helped get us back on the road. :-D


1986 MK2 Scirocco - GTX - 120k
mark1gls
Posts: 3957
Joined: Thu Apr 02, 2009 9:28 pm
fill in the right answer: 10
Location: Somerset

Re: FIXED: Help Please! Car won’t start after oil change.

Post by mark1gls »

Just checking you are using super unleaded petrol?


Mk1 78 Scirocco GLS 1.6 FR, weekend toy.
Mk1 88 Golf GTi cabriolet 1.8 DX. Daily drive.
Membership No. 323
smudger28
Posts: 124
Joined: Sat Jan 14, 2023 7:09 pm
fill in the right answer: 15
Location: Falmouth, Cornwall

Re: FIXED: Help Please! Car won’t start after oil change.

Post by smudger28 »

Actually... I don't think he is. Lemme check.

Yes E5, he is...


1986 MK2 Scirocco - GTX - 120k
mark1gls
Posts: 3957
Joined: Thu Apr 02, 2009 9:28 pm
fill in the right answer: 10
Location: Somerset

Re: FIXED: Help Please! Car won’t start after oil change.

Post by mark1gls »

That’s good news as they run best on super unleaded (supermarkets vary from 97 to 99 RON) and all should be E5

I was asking as you have to retard the timing by 6 degrees to use normal unleaded but the extra ethanol (E10) in normal unleaded I don’t think is good news for older cars.


Mk1 78 Scirocco GLS 1.6 FR, weekend toy.
Mk1 88 Golf GTi cabriolet 1.8 DX. Daily drive.
Membership No. 323
smudger28
Posts: 124
Joined: Sat Jan 14, 2023 7:09 pm
fill in the right answer: 15
Location: Falmouth, Cornwall

Re: Help Please! Car won’t start after oil change.

Post by smudger28 »

mark1gls wrote: Fri Mar 03, 2023 10:51 am Forgot to post the link…

https://www.eurocarparts.com/p/mann-fil ... -503880019

Fit new cooper washers 14mm at the inlet (same size as sump plug washer) and 12mm at the outlet. The picture shows washers but I’ve never had any when buying a filter…

The fuel filter is best changed every 2 years or 20,000 miles, and buy a good quality filter like the MANN one listed above.
Got a new filter Mark just need the washers. What thickness are the copper washers? I've seen 1mm, 1.5mm and 2mm. Does it have to be a specific thickness?

Thank you.


1986 MK2 Scirocco - GTX - 120k
mark1gls
Posts: 3957
Joined: Thu Apr 02, 2009 9:28 pm
fill in the right answer: 10
Location: Somerset

Re: FIXED: Help Please! Car won’t start after oil change.

Post by mark1gls »

I don’t think the thickness makes much difference as the banjo bolt are quite long but the ones I’ve used are 1mm thick.

Have a cloth and some sort of container handy as when you undo the bolts as fuel sprays out and there is usually quite a bit of fuel in the fuel filter so keep it level when removing then pour the fuel into a container and it makes a good cleaner for oil on the engine.

I leave the filter where it is until I loosen both banjo bolts, you need a couple of big spanners to hold the filter still, I think it’s 22mm and 24mm spanners? check with the new filter.

It does take some cranking of the engine to fill the new filter before the car will start or it may start then stall before need to crank it over before starting again.


Mk1 78 Scirocco GLS 1.6 FR, weekend toy.
Mk1 88 Golf GTi cabriolet 1.8 DX. Daily drive.
Membership No. 323
mark1gls
Posts: 3957
Joined: Thu Apr 02, 2009 9:28 pm
fill in the right answer: 10
Location: Somerset

Re: FIXED: Help Please! Car won’t start after oil change.

Post by mark1gls »

Also found part number for the AAV hose.

https://www.lllparts.co.uk/catalogs/vw/ ... /133/45000


Mk1 78 Scirocco GLS 1.6 FR, weekend toy.
Mk1 88 Golf GTi cabriolet 1.8 DX. Daily drive.
Membership No. 323
smudger28
Posts: 124
Joined: Sat Jan 14, 2023 7:09 pm
fill in the right answer: 15
Location: Falmouth, Cornwall

Re: FIXED: Help Please! Car won’t start after oil change.

Post by smudger28 »

Mark

Fantastic info as usual! Can’t thank you enough. I’ll be busy this weekend 🫣.

I’m hoping to get a hose from Blueshark who has some air filter box clips for us. If I struggle to get one then I’ll make one myself with the correct diameter hose.

Got a few jobs this weekend.

New fuel and air filter.
Earth lead from Coil to Rocker.
Fix small leak from oil filter housing.

That should keep me and the lad busy.


1986 MK2 Scirocco - GTX - 120k
mark1gls
Posts: 3957
Joined: Thu Apr 02, 2009 9:28 pm
fill in the right answer: 10
Location: Somerset

Re: FIXED: Help Please! Car won’t start after oil change.

Post by mark1gls »

No worries and happy to help.
AAV hose seems to be no longer available new. Blueshark is a great help with those hard to get parts and I’ve brought a few things from him in the past.


Mk1 78 Scirocco GLS 1.6 FR, weekend toy.
Mk1 88 Golf GTi cabriolet 1.8 DX. Daily drive.
Membership No. 323
smudger28
Posts: 124
Joined: Sat Jan 14, 2023 7:09 pm
fill in the right answer: 15
Location: Falmouth, Cornwall

FIXED: Help Please! Car won’t start after oil change.

Post by smudger28 »

mark1gls wrote:Image
I replaced mine the other week when messing around with the accumulator.


Sent from my iPhone using Tapatalk
The new Mann filter looks huge compared to the Bosch one we have fitted. I’m not sure the clamp is going to fit. Where did you get a clamp for that Mann filter?

Thanks.

Here’s mine.

Image



Sent from my iPhone using Tapatalk


1986 MK2 Scirocco - GTX - 120k
mark1gls
Posts: 3957
Joined: Thu Apr 02, 2009 9:28 pm
fill in the right answer: 10
Location: Somerset

Re: FIXED: Help Please! Car won’t start after oil change.

Post by mark1gls »

Early cars (pre 1985 ish) had the thinner filter, later cars were fitted with the bigger fuel filter, I guess someone before fitted the wrong thinner fuel filter and changed the jubilee clip.


Mk1 78 Scirocco GLS 1.6 FR, weekend toy.
Mk1 88 Golf GTi cabriolet 1.8 DX. Daily drive.
Membership No. 323
smudger28
Posts: 124
Joined: Sat Jan 14, 2023 7:09 pm
fill in the right answer: 15
Location: Falmouth, Cornwall

Re: FIXED: Help Please! Car won’t start after oil change.

Post by smudger28 »

Ok I guess I'm gonna need a bigger clip of some description. Will see what I can find. I need to have a proper look to see how it all attaches..


1986 MK2 Scirocco - GTX - 120k
mark1gls
Posts: 3957
Joined: Thu Apr 02, 2009 9:28 pm
fill in the right answer: 10
Location: Somerset

Re: FIXED: Help Please! Car won’t start after oil change.

Post by mark1gls »

The jubilee clip is just slid over a bit of metal, you slid the clip towards the back of the car and it’s off it’s fixing.

You can buy the smaller filter but I would recommend getting the later filter if you can.

Smaller fuel filter.

https://www.ebay.co.uk/itm/393258430988 ... BMkKL_yNth


Mk1 78 Scirocco GLS 1.6 FR, weekend toy.
Mk1 88 Golf GTi cabriolet 1.8 DX. Daily drive.
Membership No. 323
mark1gls
Posts: 3957
Joined: Thu Apr 02, 2009 9:28 pm
fill in the right answer: 10
Location: Somerset

Re: FIXED: Help Please! Car won’t start after oil change.

Post by mark1gls »

You can just about make out the metal bracket which supports the fuel filter.

https://vwgolfmk1.org.uk/forum/index.ph ... olf-gti-8v


Mk1 78 Scirocco GLS 1.6 FR, weekend toy.
Mk1 88 Golf GTi cabriolet 1.8 DX. Daily drive.
Membership No. 323
smudger28
Posts: 124
Joined: Sat Jan 14, 2023 7:09 pm
fill in the right answer: 15
Location: Falmouth, Cornwall

Re: FIXED: Help Please! Car won’t start after oil change.

Post by smudger28 »

Hi Mark

Thanks for the info. We bought the bigger Mann filter as you suggested earlier. Never thought to check the clip size. I will have a good look tomorrow and see if I have anything at work. If not eBay have some clips.


1986 MK2 Scirocco - GTX - 120k