| T.R | Title | User | Personal
Name | Date | Lines |
|---|
| 1096.1 | who needs a timing light? | AIMTEC::BURDEN_D | No! Your *other* right! | Wed Jun 06 1990 19:41 | 11 |
| The timing marks are on the flywheel which is accessed through the
large plastic plug on top of the tranny case right near the block.
Personally I don't use a timing light. I just loosen the distributor
and twist it around until it's idling around 1000 to 1200 rpm.
To convert to diesel you'll need a whole new engine, fuel tank and
everything. It's not worth it. I swapped out a diesel engine and
dropped in a gas engine once.... Try looking around for a used
diesel Jetta before thinking about swapping engines.
Dave
|
| 1096.2 | Thanks, but what's the angle ? | ZPOV03::SEOWHURN | | Thu Jun 07 1990 10:45 | 8 |
|
But what is the timing angle ? Is the timing mark calibrated ? Or one of
those meaningless markings that can only be interpretated by people with
workshop manuals. The owner's manual makes no mention of timing and I
am unable to find a Haynes guide (VWs are not popular here so the
bookshops tend not to stock them).
SH
|
| 1096.3 | You need the manual | IOSG::MARSHALL | Argle Bargle IV | Thu Jun 07 1990 13:38 | 11 |
| 1096.4 | I'll check | AIMTEC::BURDEN_D | No! Your *other* right! | Thu Jun 07 1990 18:13 | 6 |
| What size engine? I'll look it up in my Bentley manual tonight.
I'd try the distributor trick myself, it's really very easy. The
higher you set the idle the more power you'll get, but if you raise
it too much, to around 1500 rpm, you'll bet pinging under full load.
Dave
|
| 1096.5 | | ANNECY::MATTHEWS | M+M Enterprises. Thats the CATCH | Thu Jun 07 1990 18:54 | 2 |
| Adjusting it by ear is the best way known to put a hole
in the piston :-( :-(
|
| 1096.6 | an ear and an eye | AIMTEC::BURDEN_D | No! Your *other* right! | Thu Jun 07 1990 19:45 | 6 |
| It's not just by ear, though, you have to watch the tach as well.
If the Jetta in question doesn't have a tach, then he could run
into problems by setting the idle too high or low. Setting it anywhere
between 1000 and 1200 rpm should cause no problems.
Dave
|
| 1096.7 | It's a 1588cc GLI | ZPOV04::SEOWHURN | | Fri Jun 08 1990 04:16 | 14 |
| RE: .4
The engine size is 1588cc (European Specs - Non-cat, non-unleaded, fuel
injection model with 110bhp).
The idle is a bit odd (strange loud uneven exhaust spluttering noise
plus a slightly uneven idle) and engine seems to be a little reluctant and
harsh above 4000rpm. But is really smooth from 1000 to 4000rpm. The
engine had been overhauled some months back. So I suspected maybe the
timing is off. I'd owned a series I Golf GTI and Scirocco before but
they were all very smooth and willing to the redline.
Any other ideas ?
|
| 1096.8 | | CHEFS::CLEMENTSD | Public Sector and Telecomms | Fri Jun 08 1990 14:31 | 4 |
| RE .6 ......
Perhaps I am not the contortionist that you need to be, but how
do you watch the tachometer when you are twiddling the distributor?
|
| 1096.10 | get some exercise | AIMTEC::BURDEN_D | No! Your *other* right! | Fri Jun 08 1990 22:06 | 10 |
| Since you're just adjusting the idle, you can set the distributor,
walk around and look at the tach, walsk back, adjust the distributor
again, until you have it right. You can also use a dwell/tach meter
if you have one.
Of course, some of the more 'serious' racers have a complete set
of duplicate gauges under the bonnet so they can check everything from
there.
Dave
|
| 1096.11 | diesels are great when designed in | UKCSSE::ARBISER | mice one squirrel | Wed Jun 13 1990 19:24 | 14 |
|
Can't suggest you choose a diesel motor as suggested in an earlier
reply as not only will you need a new power plant but there are other
modifications to consider which will cost yet more. For example the
front suspension legs are uprated to support the greater weight of the
block. Secondly the diesel engine drives a diaphram pump to power the
brake servo, not sure if your existing servo will work from this..
Lastly there is a ceratin amount of extra padding used under the bonnet
and carpet to dampen down the extra diesel knocking noises, and oh
nearly forgot, the radiator is a larger variety too.
All in all not a good thing to contemplate.
- Ian
|
| 1096.12 | Bionic eyes required to see timing mark ??? | ZPOV03::SEOWHURN | | Sun Jun 17 1990 19:45 | 19 |
|
I tried to check the timing angle yesterday, but there was no way I
could see the timing mark unless I were to dismantle the brake
cylinder, air-con hose, crankcase ventilation pipe, etc.
Has anyone (with a Jetta GLI RHD with air-con) ever successfully
checked timing without dismantling everything above that very badly
placed hole in the gearbox ?
Is there a better way ? I seem to see a timing mark (or a chip) on the
pulley driven by the crankshaft, but could not find a corresponding
mark on the timing belt cover. Is there supposed to be one on a 83
Jetta GLI ? Or is the only timing mark on the flywheel ?
BTW, has anyone tried the Weber Big throat or Neuspeed's extra big
throttle body ? Any good or just gimmick ?
SH
|
| 1096.13 | It's all done with mirrors. | IOSG::MARSHALL | Argle Bargle IV | Mon Jun 18 1990 15:20 | 4 |
| Put a mirror next to the hole, angled so you can see the timing
marks reflected in it. A similar trick is used for minis.
Scott
|
| 1096.14 | cam timing | AIMTEC::BURDEN_D | No! Your *other* right! | Fri Jun 29 1990 00:05 | 11 |
| The mark on the cam pulley is to line up TDC when reinstalling the
head or pulley belt. You line the mark up with the top of the front
of the head and then get the pistons at TDC and slip the belt on.
It's not used for ignition timing, although you can alter the cam
timing that way, if you know what you're doing.
I'm going to track down a Mk II Scirocco TB for my Mk I Golf (Rabbit)
and see how it works. With my new head I NEED to get it to breath
better.
Dave
|