Register  |   |   |  Calendar  |  Latest Topics
 
 
 


Reply
  Author   Comment   Page 2 of 2      Prev   1   2
68autobug

VW Guru
Registered:
Posts: 2,108
Reply with quote  #16 
Hi again olspeed
I don't have money to throw at anything.... lol
so, I do a lot of research before I do anything... 
and I agree the 009 on the 181 maybe OK...

 and adjusting the accelerator pump may correct the problem..  The "bad" 009s I have heard of can be easily picked out with a strobe timing gun...
the timing will be all over the place...  not steady ..

so, if You can time the 009 on the 181 OK..
then adjust the accelerator pump a bit at a time until the engine goes when You push the accelerator/throttle pedal...

olspeed,
what is the allison ignition system You have ?
I was using a self made High energy ignition kit [black box] which put a very small amount of current thru the points so no burning or pitting...
with My 009 and it started first time every time...  I kept adjusting the points gap until the points wore down and earthed/grounded out burning out My ignition kit..
the points weren't Bosch and the rubbing block was plastic!!

I will be repairing it one day.... have a better transistor to fit..

You must be doing something right olspeed to get performance and great economy... I've never checked My MPG ..
with the 009 or the SVDA..  I hope to on the next trip..

cheers

Lee





__________________
- helping keep air cooled Volkswagens alive in Australia and around the world --
I have been on here since 20th February 2004
0
olspeed

VW Know-it-all
Registered:
Posts: 507
Reply with quote  #17 
Hi Lee
 the Allison XR700 system is a pointless electronic ignition system that came out in the early 80s. It's kind of a "willfit"  system that you could put in either the stock Dizzy or an 009 or what ever. I first put it on my green and black Baja because it was advertised that it would run even under water and at the time the group I traveled with made weekly runs up to Knik glacier(The offroad place in southcentral Alaska) I needed something that could live in the wet. From there it has been in my VW Thing, my Bus any of the other bugs I have owned and now in my Ghia. (I should have bought two) At the time it was cheap at less than $40.00 but I really don't know if they make this unit anymore.
Olspeed 

__________________
66 Ghia, "Dexter" 76 flat window Beetle
It's not a Car it's a VolksWagon!
0
olspeed

VW Know-it-all
Registered:
Posts: 507
Reply with quote  #18 

Hi Lee
 one other thing that I wanted to add here is that you are most definitely right

Quote:
  The "bad" 009s I have heard of can be easily picked out with a strobe timing gun...
the timing will be all over the place... not steady ..
 
 
So for the owner of the Thing if your timing is steady then most likely the problem is elsewere. Things to start with would be vacuum leaks, valve settings, and the carb itself. the Pict34-3 is known for having the throttle shaft to wear in the housing and if it's bad enough no matter what else you add or do, it will not run right.

 And I just had to add that this weekend I went to open up my fishing cabin on the Kenai and in the bathroom was a two year old copy of a Hot VWs mag(quality reading material) And in it was an article on their Mileage Motor that they started building in 2005. This engine started life with a Brazilian 009 screamer kit (dizzy, blue coil and wires) and while I don't have all the issues that show all the changes that they have done to this motor I do have most. But the one thing that caught my eye was that through ALL the changes and mileage figures that they had listed up to that point they were still using that Bosch 009 and the engine is getting right at 39 mpg.
Olspeed

__________________
66 Ghia, "Dexter" 76 flat window Beetle
It's not a Car it's a VolksWagon!
0
ChrisW

VW Enthusiast
Registered:
Posts: 23
Reply with quote  #19 
Well you are right I have never been a certified mechanic. And if you want to call me a parts changer you can and I will ware that label with pride. I have worked on my own cars for over 30 years and I do a lot of research, I am always looking for a better tool or a way of making my cars run better and when I find a better part on the market I change the part, like when I discovered that for a daily driver the svda works better then the 009. As to why people switch from a svda to a 009 in the first place my guess is that they saw that the drag racers were using them and thought it would work well on street cars.Drag cars run flat out, (like the generators that the 009 was designed for) for a short distance so in that case the lack of a smooth take off and wasting gas was not an issue. I did not assume that the 181 had a cheep 009 repro, I stated that the svda works better with the 34pcit3, and it dose. Besides Ed asked to be enlightened as to the problem and the fix. You had already told him how to tune it out I was just telling him how I fixed the problem. I always believe the more info the better. 


Chris

__________________
FAST is good CONTROL is better
0
olspeed

VW Know-it-all
Registered:
Posts: 507
Reply with quote  #20 
The statement
 
Quote:
 for a daily driver the svda works better then the 009

Is an opinion... and in my opinion it is a falsehood. Also the statement that the 009 lacks a smooth takeoff and wastes gas is a falsehood. I am sure that you know that the main different between a vacuum advance and a mechanical advance distributor is how the advance mechanism is actuated. First off 009 is the last digits of the part number and that Bosch made two types of distributor for VW with part numbers that ended in 009. One that is a full vacuum advance (with no mechanical advance to it at all) and the one that some tend to give a bad name to the full mechanical advance 009.
 At idle both the svda and the 009 provide little to no advance to the spark, from there as you step on the gas, the vacuum advance starts to advance as the vacuum rises and the mechanical part takes over from there,while this provides for a smooth transition it's reaction time to full advance is also slower. Now while the mechanical is signaled only by the rise in rpms this is the only place where there is a problem with a mechanical advance distributor. But with a well maintained engine and carb... one that has the carb tuned per the instructions by VW (in the Bentley manual and not some of the other phony stuff that out there) and it IS in good shape... no wobbly throttle shafts that leak air and the valves are set and no vacuum leaks, just turning the accelerator pump up a bit (the adjustment is not that much) will smooth things out. The main improvement that the 009 gave over the original svda that VW had installed in their engine was that it improved the powerband... max advance comes in around 2500rpms this improves gas mileage(which makes up for the small amount of fuel used to relieve the bog) and especially in a heavy car like the VW Thing (these beasts are not a bug or super beetle) it improves the driveablilty...on the street. For the drag cars the improved powerband meant that the car came out of the hole better and accelerated faster.
When I purchased my 74 VW thing it had right at 30,000 miles on it and it was bone stock the only addition by the PO was a bent front bumper and a damaged front fender that occurred when he met a pole in a parking lot while DUI (it's a good thing he was going slow) After fixing the damage I used that car for 5 years as a daily driver and found that the roll bar in it would hold my 14' car top boat quite nicely and that the boat engine, gas tank, fishing supplies and my gear fit behind the rear seat with room to spare. In the first summer of driving from Anchorage to Kenai (165 to 170 miles one way) over the pass (elevation change of around 4000tf) the beast would run at 60mph just fine on the flats but in the pass it was down to 2nd gear up the last part and fuel mileage for the trip was down around 18 mpg. The first change that I did was a distributor...the 009 , with that change I gained 3rd gear back and was back to 20 mpg for the trip.
 Now I am sure that you have had experiences that have influenced you in your decisions but this has been my experience with the 009 and one of the main reasons that I for one swear by them...   Although Lee did spark my interest with the statement that the svda that he has installed can run up to a 40 degree advance... this would work good for the next engine that I want to build for my Ghia (the one that is in it will soon be in my bug) My plan for it is to stay close in size to the mileage motor (85.5x76)1745cc but I have a blower from a 2-53 jimmy that after much modification will now bolt up(haven't decided on carbs though) but will need more advance than a 009 could ever provide (28 degree max) and I am not too impressed with my Mallory 501 dual point(up to 48 degree advance by spring change) plus I don't want a magneto.
Olspeed 



__________________
66 Ghia, "Dexter" 76 flat window Beetle
It's not a Car it's a VolksWagon!
0
68autobug

VW Guru
Registered:
Posts: 2,108
Reply with quote  #21 
Hi Olspeed

First of all I don't have a solex carby at all... lol   I'm running an NOS single throat weber [brasillian] carby so I never ever had the problem with the 34 pict 3 and the BOSCH  009 dizzy...   but there was a noticeable difference with the BOSCH SVDA distributor...  much smoother from take off...
I finally got round to tuning it properly last week... lol
at 7.5 degrees BTDC at idle its 30 degrees BTDC at 3000+ revs  with the vacuum blocked ... and 36 degrees BTDC AT REVS  3600 rpm.. with the vacuum working...  I've noticed the oil temperature isn't so hot as it was..
and gas mileage is much better although I've never ever checked the actual mileage..  I didn't know  the 34 PICT 3 AND 009 Problem was also in Australia... but many vw mechanics tell Me it is also a problem over here...  [no pollution stuff on our engines]
I don't usually throw money at anything.. lol 
it took Me a year or so to get that Distributor....

cheers

Lee in Australia

PS. I will keep My fairly new bosch 009 now...   the local market is now flooded with chinese cheap 009 and SVDA copies now... too   Lee





__________________
- helping keep air cooled Volkswagens alive in Australia and around the world --
I have been on here since 20th February 2004
0
olspeed

VW Know-it-all
Registered:
Posts: 507
Reply with quote  #22 
Hi Lee
 As I said it's an opinion... even with me it's an opinion but, I can say is there are a lot of 009's out there and there are a lot of people that have had good luck with them. That being said there is no reason for people not to try something different. I would suggest that anyone trying to figure out what they want should talk to people(local VW shop) in the area around where they are that are running the setup that they are interested in buying and see is they can't at least go for a ride to see if it is what they want for their VW. I know that when I was Auto-Xing  I was always willing to let someone slap on a helmet and take it out for a dollar run to see what they though. I even learned a few things from comments that they had when they came back in through the traps.
Olspeed

__________________
66 Ghia, "Dexter" 76 flat window Beetle
It's not a Car it's a VolksWagon!
0
Previous Topic | Next Topic
Print
Reply

Quick Navigation:

Easily create a Forum Website with Website Toolbox.