|
|
|
|
| Author |
|
|
Registered
Join Date: Nov 2003
Location: Naperville, Il
Posts: 496
|
Quote:
Loctite 574 is an anaerobic sealant used to seal flat surfaces. It was the standard used by Porsche on all air cooled motors; though it appears that on the water cooled motors, Porsche now uses Drei Bond. That is progress. I've never seen nor heard discussed using Loctite 574 in conjunction with O-rings. Specifically, on the 911 case through bolts, builders usually install the O-rings dry or use only a little bit of engine oil, teflon paste, or Curall T in conjunction with O-rings to seal that area from external leaks. Since 574 is an anaerobic sealant, it sets up in the absence of air and does not form a "flexible" seal; whereas, O-rings are designed to accommodate the thermal movement of the case bolts relative to the case while still holding a seal. So, unless you can site where Porsche stipulates its use in this area, I would suggest that you consider what the prominent builders use. And, as I've stated, I've never seen Loctite 574 touted for sealing through case bolts. Perhaps someone can point out where that has been done before.
__________________
Ernie 98 993 C2S - Arena Red/Beige 76 914/6 3.2 Conversion - Estorill Blue/Coral Red |
||
02-08-2015, 05:09 PM
|
|
|
Registered
Join Date: Oct 2013
Location: Prescott, AZ
Posts: 1,062
|
IIRC Nick Fulljames uses 574 on all the o-rings as well as on everything else in his videos. He obviously knows his way around a 911 engine, but I don't plan on mimicking that part of his engine builds.
|
||
|
02-08-2015, 06:43 PM
|
|
|
Registered
Join Date: Aug 2014
Posts: 223
|
what did you do with your cylinders? Are they the originals bored and recoated or something else?
I am thinking of doing the same with my 3.2 in terms of JE pistons and rebored and coated cylinders. Did anything else need to be done to the pistons or used straight out of the box? Also, did you use the original 127mm rods? |
||
|
02-15-2015, 07:50 AM
|
|
|
Registered
|
An update...dyno'd the engine today, made decent numbers on a Mustang Dyno
Still on stock CIS with WUR recurved. 12.7:1 AFR at WOT. I will be modifying the stock CIS intake for an AEM Infinity 506 install in the near future. 204 wtq from ~3500-5000rpm 193 whp at 6000rpm Dyno Graph: 
__________________
-Jayson 1976 911S Signature Edition - 3.2SSt (JE 98mm 9.5:1 pistons, 964 Cams, Carrillo Rods, ARP Head Studs, AASCO Valvetrain, 3.2 Carrera Manifold, ID725's, B&B Headers, TS HyperGate45 Gen V, TS RacePort, BW S360, AEM Infinity 506, E85) IG: Signature_911 |
||
|
12-09-2015, 11:59 AM
|
|
1976 Porsche 911S 1979 3.0
