engine and drivetrain 2002Tii Block With 121 Head

[niko k]

Hey guys,

 

I recently picked up a 2002 that had a tii engine swap in it. Upon looking at it more I've come to realise that the block on the engine is from a tii and it has a 121 head but isn't fuel injected. It has a 32/36 weber on it and isn't fuel injected. Wondering if any of you guys have heard of that before? 

[Preyupy]

The early Tii's had 121 heads. The only difference between a Tii block and a carbureted engine block is the oil drain back port. The non Tii blocks had the boss cast into the block it just was not drilled and did not have the fitting installed. Does the head have the mounting for the fuel pump? If not someone just took a block and head from a Tii and put a standard front cover on it and installed a manifold and carburetor. Not a half bad way of getting a bit more compression.

[niko k]

The early Tii's had 121 heads. The only difference between a Tii block and a carbureted engine block is the oil drain back port. The non Tii blocks had the boss cast into the block it just was not drilled and did not have the fitting installed. Does the head have the mounting for the fuel pump? If not someone just took a block and head from a Tii and put a standard front cover on it and installed a manifold and carburetor. Not a half bad way of getting a bit more compression.

 

Upon further inspection I realized it's actually an E12 head (PO told me it was a 121). And I couldn't find the mounting for the fuel pump. I'm thinking that they took the block/head and did indeed just put the standard cover on it. 

The previous owner withheld a TON of information about the car so I'm learning more about it while going through it. 

Edited November 5, 2013 by niko k

[FB73tii]

The previous owner withheld a TON of information about the car so I'm learning more about it while going through it. 

Unfortunately not uncommon. Suggest you go through the whole car and check every nut, bolt, shaft and safety item. The car I recently bought had the driver seat mounted in a very unsafe manner, and the bolts on the driveshaft (both at the guibo and the diff flange) were *finger tight* ...! Hopefully you don't find any major issues, but better to find them in your driveway than out on the road --Fred

[niko k]

Unfortunately not uncommon. Suggest you go through the whole car and check every nut, bolt, shaft and safety item. The car I recently bought had the driver seat mounted in a very unsafe manner, and the bolts on the driveshaft (both at the guibo and the diff flange) were *finger tight* ...! Hopefully you don't find any major issues, but better to find them in your driveway than out on the road --Fred

 

Haha I've already had some major issues..

 

(tranny going out) <-- when I was told by the PO that everything in the car was working fine mechanically as well as (the sunroof needed some wd40 to fix) but after taking it apart, I had to buy more or less all the parts to rebuild the sunroof. His misinformation set me a few k's back... BUT I love the car regardless. I've been tackling a new part of the car every day and going through it. 

Went through the suspension making sure everything was regreased and tight, and now I'm dealing with a whining pinion bearing in the diff.

I've got a 1980 320is 5 speed tranny in there and I've noticed when I shift into 5th gear (started like 2 days ago & had the rebuild a few weeks back) that it starts to make a clicking sound above 50-60mph (sounds like a pencil tapping on a desk). 

If it aint one thing, its another 

Edited November 5, 2013 by niko k

[jerry]

 I've noticed when I shift into 5th gear (started like 2 days ago & had the rebuild a few weeks back) that it starts to make a clicking sound above 50-60mph (sounds like a pencil tapping on a desk). 

If it aint one thing, its another 

 

Raise the car up on 4 jackstands.  get underneath with a light.  2 places to look.  my first guess is that the center bearing on the driveshaft is old.  my second guess is that your guibo might be tapping against your shift linkage.

 

i suspect the center bearing first because your description sounds RPM-related.  it will only get worse with time.  bring a little mirror with you and look for shiny spot on your exhaust which is typically very close to the DS in that location.

 

i had a similar issue which i solved by replacing the center bearing on my DS.  the bearing itself was fine; it is the rubber webbing that ultimately starts to sag and weaken.

 

use the light and mirror to see any rub spots on the guibo and related area.