Dis Drive ?

fredybear · Post by **fredybear** » Tue Jul 23, 2002 4:02 am

Anyone ever put the drive in the case half before mateing it?? Comments abbout doing it that way..

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Fredy-
55 bug-
63 bug-

Post by **Marc** » Tue Jul 23, 2002 7:55 am

Personal preference I think; I don't do it this way because the flywheel isn't on yet and the crankshaft endplay isn't controlled - could harm the brass gear on the crank; but since you should be checking the installed endplay of the pinion before mating the case anyway, why not leave it in? BUT put the spring and a distributor in immediately; if the pinion climbs up and you turn the motor it will chew up the brass gear and you'll have to replace it.

Muffler Mike · Post by **Muffler Mike** » Tue Jul 23, 2002 8:38 am

<BLOCKQUOTE><font size="1" face="Verdana, Arial">quote:</font><HR>Originally posted by Marc:
Personal preference I think; BUT put the spring and a distributor in immediately; if the pinion climbs up and you turn the motor it will chew up the brass gear and you'll have to replace it.<HR></BLOCKQUOTE>

Exactly.
I prefer to install the drive and distributor before dropping in the crank for the final time. set up the distributor to aproxamately the number 1 position, then drop the crank in at top dead center.
For me, when i do my motor tare downs, i only unbolt the distributor bracket and pull out. then when it goes back in, dis goes in to the number 1 postion, crank drops in and by the time i go to fire up the motor again, its still got the same timing as i tore it down with.

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Muffler Mike
www.MufflerMike.com

Lees73Super · Post by **Lees73Super** » Tue Jul 23, 2002 8:49 am

Hey Mike,

How do you know the crank is at TDC when you drop it in? What Pos. is everything (including mesh marks on cam gear?

Lee

Post by **Marc** » Tue Jul 23, 2002 9:39 am

If you're holding the crank up by #1 rod as you drop it in it's a pretty safe bet that it's close to TDC on the crank. Then match up the cam timing marks; roll it back 90° to where the rotor is pointed at the notch on the distributor again and look at the cam lobes if you need a reality check (if #2/4 exhaust lobe is pointed upwards and the other three aren't, that's TDC on #1).

Muffler Mike · Post by **Muffler Mike** » Tue Jul 23, 2002 10:14 am

<BLOCKQUOTE><font size="1" face="Verdana, Arial">quote:</font><HR>Originally posted by Marc:
If you're holding the crank up by #1 rod as you drop it in it's a pretty safe bet that it's close to TDC on the crank. Then match up the cam timing marks; roll it back 90° to where the rotor is pointed at the notch on the distributor again and look at the cam lobes if you need a reality check (if #2/4 exhaust lobe is pointed upwards and the other three aren't, that's TDC on #1).<HR></BLOCKQUOTE>

Yea, what Mark said.

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Muffler Mike
www.MufflerMike.com

Pillow · Post by **Pillow** » Tue Jul 23, 2002 10:41 am

I like to put the dizzy drive gear and dizzy in before dropping the crank in.

Makes certain that the drive is perfect on #1 when I time it.

The one time I tried the other way I ended up 180 degrees off

DOH!

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Adrian Pillow
'66 VW Westfalia - "Biscuit"
'67 VW Deluxe Westfakia - "Dino" - FS
'79 Porsche 911 SC - "Cochese" - FS