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> Converting a Vanagon TB for use with 1.8 L-Jet, How I did it
MrKona
post Nov 2 2014, 08:36 PM
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There's currently a thread about using L-jet from a 1.8L engine for a 2.0 with discussion about using bigger bore throttle body from a later Vanagon.

I tried it but ran into an issue with the orientation of the flat on the shaft that engages the throttle body switch component used with L-Jet.

Pictures are worth a thousand words, so here goes..

Here's the TPS and a picture of each TB with the plate in the throttle closed position. Original 1.8 L-jet on the right, Vanagon donor TB on the left. Notice the different orientation of the flat on the shafts. The flat engages a corresponding flat on the TPS. The flat on the Vanagon shaft is in the wrong position for the TPS.


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jim_hoyland
post Oct 2 2016, 07:27 PM
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Bought a Vanagon TB today; gonna see how this works out with my top-end rebuild. Might have some questions later,,, (IMG:style_emoticons/default/smile.gif)
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MrKona   Converting a Vanagon TB for use with 1.8 L-Jet   Nov 2 2014, 08:36 PM
MrKona   I didn't want to simply make a new flat on the...   Nov 2 2014, 08:44 PM
MrKona   So I decided to use the shaft from the 1.8 TB. Onl...   Nov 2 2014, 08:48 PM
MrKona   So I decided the way to go was to lengthen the rec...   Nov 2 2014, 09:18 PM
Geezer914   Great pictures! I just picked up a 2.1L thrott...   Nov 2 2014, 09:20 PM
MrKona   Brief intermission, and on a related note.. anothe...   Nov 2 2014, 09:24 PM
MrKona   Five minutes of careful grinding on each side was ...   Nov 2 2014, 09:27 PM
MrKona   And with that, I inserted the modified shaft in th...   Nov 2 2014, 09:31 PM
MrKona   One more note, you may have noticed already that t...   Nov 2 2014, 09:34 PM
rick 918-S   Nice work. Way to think out of the box.   Nov 2 2014, 09:50 PM
Dave_Darling   Peen or use Loctite on the throttle plate screws. ...   Nov 3 2014, 12:29 AM
MrKona   Peen or use Loctite on the throttle plate screws....   Nov 3 2014, 01:47 AM
Valy   Did you try to use the vanagon throttle switch?   Nov 3 2014, 02:11 AM
MrKona   Did you try to use the vanagon throttle switch? ...   Nov 3 2014, 09:16 AM
Valy   Did you try to use the vanagon throttle switch? ...   Nov 3 2014, 02:14 PM
MrKona   [quote name='MrKona' post='2105738' date='Nov 3 2...   Nov 3 2014, 10:46 PM
Root_Werks   Really good write up and something I would have us...   Nov 3 2014, 09:43 AM
pilothyer   Bryan Do you have the part number for this throttl...   Nov 3 2014, 02:32 PM
MrKona   Bryan Do you have the part number for this thrott...   Nov 3 2014, 10:59 PM
type47   I wonder what is the size of the TB for the 912E. ...   Nov 4 2014, 06:15 AM
Dave_Darling   I believe that the TB for the 912E is identical to...   Nov 4 2014, 10:10 AM
N_Jay   What about a mounting plate that picks up the TB m...   Oct 1 2016, 06:25 AM
jim_hoyland   How was the performance improved ?   Oct 1 2016, 06:41 AM
rgalla9146   All of the grinding was done with the bench grinde...   Oct 1 2016, 10:47 AM
ClayPerrine   I did this for Betty's car. I don't know...   Oct 1 2016, 12:06 PM
jim_hoyland   I did this for Betty's car. I don't kno...   Oct 8 2016, 08:46 PM
ClayPerrine   I did this for Betty's car. I don't kn...   Oct 9 2016, 05:31 AM
jim_hoyland   [quote name='jim_hoyland' post='2409129' date='Oc...   Oct 9 2016, 06:46 AM
jim_hoyland   Bought a Vanagon TB today; gonna see how this work...   Oct 2 2016, 07:27 PM
396   Clay, You Da Man. Thanks for sharing this valuabl...   Oct 9 2016, 05:05 PM
aerokurt   How about trying one from an Alfa spider from 1982...   Oct 9 2016, 05:14 PM
jim_hoyland   How about trying one from an Alfa spider from 198...   Oct 9 2016, 07:44 PM
jim_hoyland   Just installed the modified vanagon TB; sent the T...   Nov 16 2016, 09:38 PM
jim_hoyland   Pic of the orig 914 TB next to the Vanagon before ...   Nov 16 2016, 09:41 PM
Porschef   Jim, what did you find to feel different? How was...   Nov 17 2016, 11:59 AM
jim_hoyland   Jim, what did you find to feel different? How wa...   Nov 17 2016, 01:02 PM
Geezer914   The 1.8 plenum is only 45mm. The throttle body is...   Feb 17 2021, 07:23 AM
ClayPerrine   The 1.8 plenum is only 45mm. The throttle body i...   Feb 17 2021, 07:25 AM
krazykonrad   Not to get to far off topic, but... would a Vanago...   Feb 17 2021, 09:12 AM
ClayPerrine   Not to get to far off topic, but... would a Vanag...   Feb 17 2021, 10:06 AM
timothy_nd28   Has anyone done a GoWesty conversion yet?   Feb 17 2021, 11:40 AM
strawman   Has anyone done a GoWesty conversion yet? I se...   Apr 2 2021, 11:41 AM
ClayPerrine   Has anyone done a GoWesty conversion yet? I s...   Apr 2 2021, 12:05 PM
timothy_nd28   I purchased the GoWesty throttle body a few weeks ...   Apr 2 2021, 04:49 PM
wonkipop   I purchased the GoWesty throttle body a few weeks...   Apr 2 2021, 05:04 PM
echocanyons   I ran the go west TB for a couple years. I had ZPh...   Apr 2 2021, 05:17 PM
timothy_nd28   Beautiful! I'm going a slightly different...   Apr 2 2021, 05:22 PM
echocanyons   There is a taper but the go westy is part fits wit...   Apr 2 2021, 05:26 PM
timothy_nd28   I was going to buy a used Vanagon throttle body, b...   Apr 2 2021, 05:41 PM
Geezer914   I had to open up the plenum with a tail pipe expan...   Apr 4 2021, 01:38 AM
timothy_nd28   The GoWesty throttle body came like this, some kin...   Apr 5 2021, 03:29 PM
strawman   ... Also got rid of the 3d printed cam, and had...   Apr 7 2021, 12:55 PM
ClayPerrine   ... Also got rid of the 3d printed cam, and ha...   Apr 7 2021, 02:19 PM
wonkipop   so, if i want to do this, but not "destroy...   Apr 5 2021, 06:18 PM
Shivers   I have its little brother   Apr 7 2021, 04:49 PM
VaccaRabite   Is the 2.1l TB the one off a wasserboxer? @mrkon...   May 2 2021, 06:55 AM
ClayPerrine   Is the 2.1l TB the one off a wasserboxer? [b]@[...   May 2 2021, 08:27 AM
VaccaRabite   http://www.914world.com/bbs2/index.php?s=&...t...   May 7 2021, 06:29 PM
914werke   problem is the part has been outta stock for some ...   Jun 22 2021, 03:23 PM


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