[928uk] Timing belts and 45 degrees

[Stephen Sheridan]

Thanks guys,
My balancer only has 5 and 10 markings. If I just picked a spot roughly 45
degrees around the balancer I’m assuming that would be ok. I have to
replace the cam sprockets so it’s likely the cams will move.
On a side note I’m also replacing all the fuel lines, has anyone any tips
for removing the main flexi line, trying to get tools tight on the coupling
and room to move them is a nightmare. The intake is all stripped off but
it’s still really tight there.
Thanks,
Steve.
1985 S2 auto.

On Mon 9 Sep 2019 at 17:26, Paul Lacey <t595 at btinternet.com> wrote:

> Paul is spot on except there’s no timing mark for 45 on a pre-S4 harmonic
> balancer (front pulley) but 20 degrees is there. I usually swap belt with
> crank locked on the 20 degree mark as this gives some safety although I
> wouldn’t try turning cams.
> You will need to make (or photo) your own 20 degree marks on cam sprockets
>
> Best Regards,
> Paul L
>
>
> Sent from mobile device, please excuse typos
>
> On 9 Sep 2019, at 16:33, Paul <ukkid35 at gmail.com> wrote:
>
>
> When the crank is at 45 BTDC, with a 90deg V, no piston is at TDC
>
> That means with the crank locked at 45 BTDC you can safely spin the cams,
> because the maximum lift is half an inch, so no possibility of hitting a
> piston
>
> Only the early 16v cars, 4.5 for sure, are non-interference, the S2 can
> definitely be damaged if a belt lets go
>
> Therefore I would highly recommend changing at 45 BTDC on an S2 as well,
> however I've no experience of working on a 16v so others will be far more
> knowledgeable
>
> Paul
> 87 S4 Manual
>
> On Mon, 9 Sep 2019 at 16:13, Stephen Sheridan via 928uk <
> 928uk at lists.928.org.uk> wrote:
>
>> Hi all,
>> I’m just getting my timing belt off and I’ve been reading that some
>> suggest the timing should be set to 45 BTDC before taking the belt off. Is
>> this just for 32v cars?
>> Regards,
>> Steve.
>> 1985 S2 Auto.
>>
>
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