jgerock

2002ti wannabe project begins

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The UPS man just delivered (2) packages of goodies from FAQ members this week to get a somewhat slow start on a new project for me.

Solex 40PHH carbs with 32mm venturis and NK manifolds

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2002ti air cleaner assembly

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My long-terms goal is to build a decent driver Roundie equipped with dual carb engine that somewhat follows the guidelines of the factory ti that we could never get here. The purchase of these (2) items is just a start. Until I sell the VW, another Roundie cannot be purchased to really get this ball rolling.

I'm tempted to use the spare tii engine I already have that has a 121 head and "bath-tub" pistons if it checks out and install the Solex carbs and appropriate timing cover.

I already have (4) tii steel wheels and hub caps purchased from Paul Wegweiser a few years ago and the 4-speed trans/driveshaft I pulled from "Celeste".

I'd like to find a short bumper car with silver dollar cluster to try and stick with the '68 to '71 original ti configuration. I would even consider using a '72 or '73 for this since they seem to be more available.

You folks out West please keep me in mind if you have a candidate! Since I'm tired of red, I'm not interested in any Malaga and Granada bodies. Right now, Chamonix, Agave, Colorado, Riviera, Nevada and Sahara are my flavors.

Stay tuned. Carb inspection and air cleaner 'clean-up' coming this weekend.

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Funny, I just bought this same setup this week too!! Debating if I should actually put them on my DD. I actually already have CS steel wheels on my car too. Similar goals for us Mr. Gerock!!

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gotta love a project car that starts without a car!

Ha-Ha! if only I had room, things might be different. You have to start with something. I started buying engine parts for the VW before I bought that car too.

Thanks for the multiple e-mails and replies folks. No better bunch of people than the Vintage Bimmer crowd.

fdovergas2002ti.jpg

This is on my desktop now

bmw_2002_ti_p0025859-b.jpg

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I was looking thru one BMW book I have today that shows the engine of the 2000CS Coupe. The linkage on the rear manifold looks exactly like the ones I have.

Rear one upside down

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Part of choke and main throttle linkage. These carburetors are very interesting and complex.

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My friend has alot of original ti parts and early Euro stuff..Let me know if you want his contact information..he is looking to sell off some stuff...he is located in Central Florida

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My friend has alot of original ti parts and early Euro stuff..Let me know if you want his contact information..he is looking to sell off some stuff...he is located in Central Florida

Thanks! I'm looking for the correct accelerator linkage right now. Please e-mail me off-line.

Jim

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After washing one of our DD cars, I decided to remove and clean up the manifolds.

Purple Power, brushes and red Scotch-brite pad made them look much better.

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I then started to inspect one of the carbs. Right away, I noticed the venturis were 32mm instead of (what I thought were) 34mm. I'm thinking these are from an 1800ti.

I removed the float chamber cover

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The float needle valve was sticking so I removed it and the inlet fitting for blasting with carb cleaner.

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Both of my carbs have these little fittings that appear to be open to atmosphere

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Next are the air correction jets under a small rectangular cover

Both are 240

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Next are the main jets - both are 145

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I don't know what this is for (yet)

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Nor these

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I believe these are the idle jets - mine are 57.5

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I'll do the same for the other carburetor which has (1) sticking butterfly.

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Since this is the very first time I've seen both of these next to each other, I took some pics and measurements.

Obviously, the ti assembly is longer (4.25" longer at the central section)

Edit: Added the diameter of main housing = 145 mm

tii center housing = 10.75" long

ti center housing = 15" long

tii throttle body outlet stub: 70mm O.D.

(4) ti carburetor outlet stubs: 62mm O.D.

tii snorkle air inlets: 38-39mm I.D.

ti snorkle air inlets: 42mm I.D.

As such, the rubber boots for the throttle body/carburetors are different:

ti = 137 206 42158 (4 required)

tii = 137 212 55000 (1 required)

Top view

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Bottom view

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Note the clearance for the ti/tii brake booster

Also note the small drain hole is located in different places on them.

The (2) mounting brackets for them is different BUT both will bolt right up to the support brackets welded into the fenderwell. This pic shows the body section cut from a very rusty Polaris 74tii (Thanks to Eurotrash!) bolted to the ti air cleaner.

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Left side (front of car) ti bracket with clearance for clamp

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Right side ti bracket

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For comparison purposes, here are the brackets from my old '73tii air cleaner

Left side (front of car)

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Right side (rear towards cowl)

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Using the top view, the mounting holes on the central housing are located from the ends:

tii = 2" front and 2" rear

ti = 3" front and 4.125" rear

Also note the snorkles have the clips mounted opposite from each other.

It may appear you can use the tii rear snorkle on the ti housing, but the clips are on different sides.

tii has the clips on the snorkles

ti has the clips on the central housing

Here are some pictures of the inside of the ti central housing (still some cleaning to do)

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While I had the body piece bolted to the ti air cleaner, I positioned it on my car's engine to see the installed difference. The length and location of the front snorkle requires either a lowered battery tray (like the factory did it) or relocation into the trunk.

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After that, I checked the 2nd Solex carburetor (# 1/2) and the jets are the same as the rear carb (# 3/4).

I noticed both carbs are stamped with the numbers on the bottom.

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One butterfly is kind of sticky, so I removed the end linkage pieces, squirted some Liquid Wrench in and worked the throttle plate back and forth many times. It's getting better but not as loose as the adjacent plate.

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From the info I have gathered, the linkage on the manifold(NK 2 liter?), the 32mm choke tubes, the open "holes" in the idle circuit, and the short emulsion tubes lead me to beleive they are off an NK 1800.

I had an identical set on my 74 (although I had to open up the 1800 manifolds to match with the ports in the head)

http://www.bmw2002faq.com/component/option,com_forum/Itemid,50/page,viewtopic/t,334735/highlight,/

I don't know what this is for (yet)

Thats the one way valve for the accel pump circuit

Nor these

They hold the choke tubes in place

Someone posted the difference between the '02 Ti air box and the NK Ti air box, I cant find it now. Perhaps you also have the NK airbox also?

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Someone posted the difference between the '02 Ti air box and the NK Ti air box, I cant find it now. Perhaps you also have the NK airbox also?

Thanks!

Here is the old thread with the pictures of the ti and NK airboxes. I ended up recently purchasing the 2002ti air cleaner in this thread from Ken.

http://www.bmw2002faq.com/component/option,com_forum/Itemid,57/page,viewtopic/t,326464/highlight,air+cleaner/

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