OST-050 - A VERY special build
Posted: Thu Jul 05, 2018 11:40 am
more to come.....
from another forum wrote:Care to share the plan for this beauty?
aukword1 wrote:Very cool! Is this the engine that you need the bluetop cam covers for?
Rogue-AE95 wrote:Number 50 is indeed something special
oldeskewltoy wrote:
(except deburring the rest of the head)
from another forum wrote:
... but they did (Germany) indeed get two versions: one leaded (gobbling up Super Benzin) and one unleaded variant with a catalytic converter...
oldeskewltoy wrote:I wonder......... the unleaded one - 9.4:1, the leaded one 10.0:1???
Rogue-AE95 wrote:Are those stock rods with press-fit 18mm wrist pins? I can't remember if those 10:1 pistons had 18mm or 20mm pins.
oldeskewltoy wrote:
These are 18mm wrist pins...
Rogue-AE95 wrote:Ceramic coating? If so, that should help the block shed heat.
Rogue-AE95 wrote:Interesting. I don't think I've seen something like that before.
And I don't think I've ever seen a 4A block with the "TEQ" logo before
azndrifter50 wrote:Keep it up! A very nice find and build!
from another forum wrote:Roughly 0.025" or 0.64mm
Not too bad if you ask me and well within the adjustment of the tension pulley
Sent from my MHA-L29 using Tapatalk
from another forum - Bean wrote:The belt lenght between the markings for the crank pulley and the stock exhaust pulley is fixed. Reducing the distance by decking the block/shaving the head brings the pulleys closer together. To compensate the exhaust pulley will be pushed ever so slightly counter clockwise.from another forum - d3nso wrote:Could also be advanced it depence on the installation or do I miss something?
There for to correct this situation one would use an adjustable pulley.
Dan please correct me if I am wrong
Rogue-AE95 wrote:I see 1-3 rod caps have been shaved a bit, and the 1 & 4 thinner counterweights have new holes. Everything is so clean, it's hard to tell which of the larger counterweights has new balancing.
Is that an optical illusion, or are those domes coated? I guess it's the rougher surface not reflecting the light like the outer edges of the pistons.
Nothing nicer than seeing a newly-balanced rotating assembly
Rogue-AE95 wrote:I've always thought of the valve covers being a sort of champagne silver. A slight gold tone to the silver. At least based on the few OEM painted VCs I have.