• From: B.C.Canada
  • Registered: 2005-01-26
  • Posts: 2,610

Re: timing loves to jump.

If you screw the idle screw all the way in until it seats, the engine should stall. If it doesn't you have a vacuum leak for sure. Check for a leak at the throttle shaft in the carb. Have you re-kitted the carb? How old are the vacuum hoses? Do you have a stock air cleaner with vacuum operated preheat? More vacuum leak sources.

Do you have a dwell meter?

jim

'71 SB(DD only 79K(now 84K miles) & '78 FI Westy (project)
PO of '65 Beetle in '69, '70 Crewcab & '70 Ghia in '77
'71 Super inside rear vents now available
http://www.openroad.ca/volkswebbin/view … p?id=85915
  • Registered: 2010-10-27
  • Posts: 35

Re: timing loves to jump.

So i took it to the mechanic today and he found three areas of vacuum leaks. They were at the boots so just had to be tighten and also the vacuum hose from air cleaner to the manifold intake port. Now my car runs sooo much better and timing no longer jumps.

Super Beetle 74 currently restoring...
69 standard beetle
  • From: Cincinnati, Ohio
  • Registered: 2005-09-10
  • Posts: 2,336

Re: timing loves to jump.

74Superbeetle wrote:

So i took it to the mechanic today and he found three areas of vacuum leaks. They were at the boots so just had to be tighten and also the vacuum hose from air cleaner to the manifold intake port. Now my car runs sooo much better and timing no longer jumps.

Awesome! smile  Great to hear the problem was found...and that you have such a good VW mechanic nearby.

- Nick

1979 Super Beetle Convertible
  • From: somewhere over the rainbow USA
  • Registered: 2006-07-26
  • Posts: 1,889

Re: timing loves to jump.

Bug In My Nose wrote:

I would hate for you to take your Beetle to a mechanic who's going to do a bunch of troubleshooting, find nothing wrong, and charge you a lot of $$$ for the troubleshooting time.  You mentioned that your carb. is good, your distributer is good, tuning is good, and end-play on the crankshaft is good
. ...taking it to a mechanic may not he

- Nick

burrhead

A wise man makes his own decisions, an ignorant man follows public opinion.
  • From: somewhere over the rainbow USA
  • Registered: 2006-07-26
  • Posts: 1,889

Re: timing loves to jump.

Bug In My Nose wrote:

Awesome! smile  Great to hear the problem was found...and that you have such a good VW mechanic nearby.

- Nick

Swaying, swaying, which side of the fence am I on  wink Wishy-washy

Dang, there is a use for us old long in the tooth mechanics . Cars the internet can't fix. LOL

Sorry I couldn't help it

burrhead

A wise man makes his own decisions, an ignorant man follows public opinion.
  • From: Cincinnati, Ohio
  • Registered: 2005-09-10
  • Posts: 2,336

Re: timing loves to jump.

burrhead wrote:

Swaying, swaying, which side of the fence am I on  wink Wishy-washy

Dang, there is a use for us old long in the tooth mechanics . Cars the internet can't fix. LOL

Sorry I couldn't help it

Members here on Volkswebbin have all sorts of differing levels of auto repair (or VW repair) experience...and I would hate for someone to go to a mechanic if there really is nothing wrong with an engine.  I think that we all know that it's getting tougher & tougher to find experienced air-cooled VW mechanics...thus taking it to a mechanic may not even be the solution.

Sounds like "74 Superbeetle" has a great mechanic, and made the right choice going to them. smile

- Nick

1979 Super Beetle Convertible
  • hank
  • Member
  • Offline
  • From: British Columbia Canada
  • Registered: 2004-03-30
  • Posts: 430

Re: timing loves to jump.

Just wondering if you add a few drops of oil on the felt under the rotor.
Just a little oil goes a long way to keeping the advance working smooth
hank

'57 bug "BlackBerry"
'58 type261 single cab "Ruf"
'86 vanagon syncro "Syncro da Dr.Mayo"
and way too many project waiting
  • Registered: 2010-10-27
  • Posts: 35

Re: timing loves to jump.

I will do that but what oil? engine oil?

Super Beetle 74 currently restoring...
69 standard beetle
  • hank
  • Member
  • Offline
  • From: British Columbia Canada
  • Registered: 2004-03-30
  • Posts: 430

Re: timing loves to jump.

74Superbeetle wrote:

I will do that but what oil? engine oil?

I've just used the oil on the dip stick just be careful not to get any drops on the points(if you still have them)

'57 bug "BlackBerry"
'58 type261 single cab "Ruf"
'86 vanagon syncro "Syncro da Dr.Mayo"
and way too many project waiting