My first type4, probably 2056

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TZepeSH
Posts: 219
Joined: Wed Nov 03, 2004 1:55 am

Re: My first type4, probably 2056

Post by TZepeSH » Wed Jun 13, 2018 3:30 am

New parts are in. Pics speak for themselves.
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TZepeSH
Posts: 219
Joined: Wed Nov 03, 2004 1:55 am

Re: My first type4, probably 2056

Post by TZepeSH » Wed Jun 13, 2018 3:35 am

And some more. I missed and ordered only one set of rocker block shims, but the second set will be delivered soon.
20180604_221807r.jpg
And I have a problem: the pulley does not center on the type 4 hub, there is a large gap. Did anybody have any issues with the CSP part?
20180606_222344r.jpg
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TZepeSH
Posts: 219
Joined: Wed Nov 03, 2004 1:55 am

Re: My first type4, probably 2056

Post by TZepeSH » Tue Jun 26, 2018 1:16 am

I got another hub, the aluminum pulley fits very well. Now that I think about it I remember to have milled it when I first started to work on the engine and I wanted to use a steel type 1 pulley. So it was milled to the interior diameter of the pulley...
How shall I proceed with changing the stock rocker studs to type1 racing studs? Double nut to remove them (they seem quite hard to remove, use some heat too?)? The racing studs are 8mm but near the boss where the head thread ends there is a 10mm diameter part (maybe 10mm high). Shall I drill a 10mm step in the rocker shafts, or mill the studs to 8mm on all length (I think this would weaken them)?

TZepeSH
Posts: 219
Joined: Wed Nov 03, 2004 1:55 am

Re: My first type4, probably 2056

Post by TZepeSH » Fri Jun 29, 2018 3:45 am

The rocker studs came out easily with double nuts. Now I have another question. As you can see in the picture below, the 10mm threaded part on the "racing" studs (bottom) is much longer than on the original stud. I measured it, 26mm. The holes in the head are only 25mm deep. The thread on the original studs is only 15mm. They were threaded in till the arrow, so the 8mm part after thread was inside the hole. That made the studs a bit too short, I could barely put some nuts on. Using the new studs, I guess I have to cut them down a bit, maybe to 20mm threaded part, and leave the 100 "boss" out of the hole, to help center the shaft holders. Again my guess would be that I have to thread them in such that the 9mm boss would stick out just for the thickness of the rocker shaft holder (an drill it to 9mm), meaning 4mm (plus 1.53mm spacers), and NOT drill the rocker arm to 10mm for a few mm. Did I get this right? I tried to sketch how to install.
20180629_111258r.jpg
20180629_114239r.jpg
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wreck
Posts: 200
Joined: Thu Aug 14, 2014 2:07 am
Location: Brisbane Australia

Re: My first type4, probably 2056

Post by wreck » Fri Jun 29, 2018 5:16 am

sounds right to me , I did something similar , as long as you have a close fit of the stud and the rocker shaft "holder" so you can locate them and shim the rockers with solid spacers and shims etc .
No matter where you go , there you are !

TZepeSH
Posts: 219
Joined: Wed Nov 03, 2004 1:55 am

Re: My first type4, probably 2056

Post by TZepeSH » Mon Jul 02, 2018 2:43 am

New parts are in, flywheel, starter motor, another set of rocker block shims (I ordered only one set first...) and some other parts for steering (complete tie rods, steering column bearings and bushings, flip-it-kit for tie rods).
Meanwhile I made the thermostat adapter plate, but I still have to trim it a bit and weld some spots, pics after. Electric drill decided to quit so I could not continue with installing the rocker shaft studs and enlarge the rocker block holes, I will get back at it this week after I buy another one.

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