Topic: had a wack at port and polish today

[drayday55]

take a look, this is my first time, i have seen enough to know what works.  i hope i did ok

i took down the ridges in the chamer and gave it a nice polish
ground down the back sides of the valve seats (took off quite a bit) to get em matched up to the port
then took alittle off both runners and polished only the exhaust

[drayday55 [OP]]

still need to surface the head and do the valve seats

[79coyotefrg]

not bad but DANG those seats are pitted

[joey0712]

Hand lap the valves in and your good to go.

[drayday55 [OP]]

yah no kidding those valve seats are crap!!    this motor only had 20 to 30k on it  that is why im not to worried on doing this myself, if i mess up, o well i got my good toyota head.
i still need to surface the head and do 3 angle the valve seats.
i hope the chinese seats dont pit that fast again!   only thing i can think of is my bro inlaw did not take care of this motor. but i cannot see that any poor maintanence would cause this .

[DTPROFAB]

your better off leaving it rough doing a gasket match you want air turbulence for fuel atomization but it looks great

[joey0712]

your better off leaving it rough doing a gasket match you want air turbulence for fuel atomization but it looks great

Wow your hard core dude! U must build top fuel motors!

[drayday55 [OP]]

i hope to one day!

the exhaust runner looks rough but i sanded it down with 220 and then 400 grit followed by a buffing wheel, damn carbon!    i wonder how long before it starts building up, if i use injector cleaner or seafoam regularly

[drayday55 [OP]]

i was also gonna champfer all the oil passages in the head including the rocker tubes,  htere are lines connecting the dots, i wonder if it will make a difference if i ran a sharp blade down this line to make it deeper, or run a drill bit like a scraper , so it oils better?

[DTPROFAB]

Wow your hard core dude! U must build top fuel motors!

well the business's name is on the side of a 900hp trophy truck

[Pat]

he is not going to have any atomization problems polishing the exaust ports..       And there is a ton a person can do to the intake with out losing any atomization..  Cleaning up castings, cleaning up the seat areas and so on..

[79coyotefrg]

your better off leaving it rough doing a gasket match you want air turbulence for fuel atomization but it looks great

HELLO, he was doing the exhaust runner

then took a little off both runners and polished only the exhaust

[79coyotefrg]

i was also gonna champfer all the oil passages in the head including the rocker tubes,  htere are lines connecting the dots, i wonder if it will make a difference if i ran a sharp blade down this line to make it deeper, or run a drill bit like a scraper , so it oils better?

yes, you want to scrape those out so the oil spreads across the rocker     i used the blade of a pocket knife

[BigMike]

That is pretty dang sweet. Brings back many memories of my MR2..

[joey0712]

HELLO, he was doing the exhaust runner

Easy guy he builds 900hp motors