Sokar - Another SR20 Rebuild
Moderators: P3g4sus, Daniel, rat, Draco, Riekert
Sokar - Another SR20 Rebuild
Well we didnt pull my motor out of my sx just so VC could run his motor in, mine was due for a rebuild aswell, here are some low quality cellphone pics of the progress
A very very dirty block, there are a few oil and powersteering leaks that are going to be fixed
Bores look fine, but the block will be re-sleeved to make room for some forged items.
Upskirt shot
The head, I was very very sad to disassemble the head, it was the quietest SR head I've ever heard (lifter and cam noise) and I hope it will stay quiet after the rebuild
More head shots
Shot of the highport inlet ports
Gonna need a new clutch, this one is poked... Also one of the "local" items, I think I might try the route Phinx went
Another item to upgrade, the throttle body
Measures between 40 - 50mm across, will check once I strip it off the intake
And now, the reason for the rebuild, this is a relatively new looking bearing, the lead coating still intact
This is a more used bearing, bits of the copper poking through
This is a F*#ed bearing, with the lead gone and the copper polished, my cyl 1 and 2 bigends had spun in the conrod. The bearings we pulled out are already 0.25 oversized, so I really hope the crank etc is still usable.
Here is a summary of the bearings, this isnt all of them, some are still in the tub with all the engine bits, notice the worn thrust bearing aswell, I have no faith in whoever built this motor before...
There you go, This week I will get the parts of to the engineers to check the damage and start ordering parts!
Grocery List:
Forged pistons
ARP headbolts
ARP Mains
ACL bearings (probably duraglide because of the oversize)
Cosworth MLS Headgasket
New Oilpump
New Clutch
Active Sump
Will post some pics of the crank as well as the pistons tomorrow.
A very very dirty block, there are a few oil and powersteering leaks that are going to be fixed
Bores look fine, but the block will be re-sleeved to make room for some forged items.
Upskirt shot
The head, I was very very sad to disassemble the head, it was the quietest SR head I've ever heard (lifter and cam noise) and I hope it will stay quiet after the rebuild
More head shots
Shot of the highport inlet ports
Gonna need a new clutch, this one is poked... Also one of the "local" items, I think I might try the route Phinx went
Another item to upgrade, the throttle body
Measures between 40 - 50mm across, will check once I strip it off the intake
And now, the reason for the rebuild, this is a relatively new looking bearing, the lead coating still intact
This is a more used bearing, bits of the copper poking through
This is a F*#ed bearing, with the lead gone and the copper polished, my cyl 1 and 2 bigends had spun in the conrod. The bearings we pulled out are already 0.25 oversized, so I really hope the crank etc is still usable.
Here is a summary of the bearings, this isnt all of them, some are still in the tub with all the engine bits, notice the worn thrust bearing aswell, I have no faith in whoever built this motor before...
There you go, This week I will get the parts of to the engineers to check the damage and start ordering parts!
Grocery List:
Forged pistons
ARP headbolts
ARP Mains
ACL bearings (probably duraglide because of the oversize)
Cosworth MLS Headgasket
New Oilpump
New Clutch
Active Sump
Will post some pics of the crank as well as the pistons tomorrow.
Captain Slow to the rescue!
hey man...
upskirt! NICE!!!
the motor wasnt too bad yo... so dont stress, it will be up and running like a savage in no time!
those bearings were poked tho - Gees. looked pretty though, nice and shiny brass/copper appearance!
with a grocery list like that its gonna be a nice S13 sr20det!
what about the greddy style inlet manfold that FSR is selling???
upskirt! NICE!!!
the motor wasnt too bad yo... so dont stress, it will be up and running like a savage in no time!
those bearings were poked tho - Gees. looked pretty though, nice and shiny brass/copper appearance!
with a grocery list like that its gonna be a nice S13 sr20det!
what about the greddy style inlet manfold that FSR is selling???
ReeceZ wrote:I'm sorry... I couldn't help it. Please no one wish any hateful shit on me, I own an SX already
yeah - we were busy this weekend!!!Riekert wrote:WOW! Nice dude!
All the best of luck!
we got my engine out in less than 2 hours. it was about 1 hour 40 mins. a new record for us! then we stripped that motor in a couple of hours. engineering this week. hopefully it goes back in the weekend after next!!!
many thanks to the wives for understanding and being "ok" with this one!
ReeceZ wrote:I'm sorry... I couldn't help it. Please no one wish any hateful shit on me, I own an SX already
- Vlade
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BTW: An old engine builder told me of an trick they pulled to combat running bearings during races.
They would buy two sets of bearings, exact same size and toss the sides with no grooves... and put grooved bearings on the top and bottom ensuring the bearings stayed lubed throughout...
Read something similar on building drift SR20 engines and CA18 engines as both love to run bearings...
They would buy two sets of bearings, exact same size and toss the sides with no grooves... and put grooved bearings on the top and bottom ensuring the bearings stayed lubed throughout...
Read something similar on building drift SR20 engines and CA18 engines as both love to run bearings...
Hairdresser MX5
Interesting, but this would just be for main mearings, not big ends as neither have a groove on the big end side? And the big ends are the problem.......Vlade wrote:They would buy two sets of bearings, exact same size and toss the sides with no grooves... and put grooved bearings on the top and bottom ensuring the bearings stayed lubed throughout...
Captain Slow to the rescue!
- Vlade
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yip he only spoke of the mains, does SR20 bigends not have grooves?Sokar wrote:Interesting, but this would just be for main mearings, not big ends as neither have a groove on the big end side? And the big ends are the problem.......Vlade wrote:They would buy two sets of bearings, exact same size and toss the sides with no grooves... and put grooved bearings on the top and bottom ensuring the bearings stayed lubed throughout...
Hairdresser MX5