![]() |
|
|
|
Registered
Join Date: Jun 2004
Location: Friendswood, TX
Posts: 500
|
![]()
God, I love this site!!!
I was cleaning my case (lovingly known as quality time with the aluminum or magnisium that is near and dear to us all), and noticed that 4 of my piston squirters were clogged. I got on the Pelican Post 911 rebuilding forum and did a search on "piston squirter". There, all rapped in pictures and words, were the answers, so out to the garage I go to un-clog them But, now I wonder... What clogged them? And, can I really clean it out? I hate the idea of these things clogging up again after I spent all this effort to do this engine right. What do you guys think? Should I be worried? Thanks ![]()
__________________
John F. Lewis 74' 911S Targa + 930/02 76' 914 - Eternal Type IV project FOR SALE |
||
![]() |
|
Super Moderator
|
Yes, you DO need to worry about them. They are responsible for cooling the pistons. Make sure they are clean...
__________________
Chris ---------------------------------------------- 1996 993 RS Replica 2023 KTM 890 Adventure R 1971 Norton 750 Commando Alcon Brake Kits |
||
![]() |
|
Registered
Join Date: Jun 2004
Location: Friendswood, TX
Posts: 500
|
I agree that they are very critical items. So, my question is how can I be sure that I really got them clean? The flow test is very subjective and I am not sure without being able to dissasemble the checkvalve if it is all clean.
I also noticed that two of the squirters which flowed fine also flowed just fine in the counter flow direction. So, its check valve failed in the open position. I was unable to clear one and had two that would not check so I decided to just have them all re-done. It will be worth the piece of mind to me since I don't plan to open this case again.
__________________
John F. Lewis 74' 911S Targa + 930/02 76' 914 - Eternal Type IV project FOR SALE |
||
![]() |
|
Super Moderator
|
I'm sure you made the right decision... an overheating piston would not be kind to your motor.
__________________
Chris ---------------------------------------------- 1996 993 RS Replica 2023 KTM 890 Adventure R 1971 Norton 750 Commando Alcon Brake Kits |
||
![]() |
|
Registered
|
I couldn't get any of mine to spray with just carb cleaner, but a puff of compressed air and they sprayed nicely.
__________________
2014 Cayman S (track rat w/GT4 suspension) 1979 930 (475 rwhp at 0.95 bar) |
||
![]() |
|
Super Moderator
|
Hmmmm
John, did you use an air compressor on them?
__________________
Chris ---------------------------------------------- 1996 993 RS Replica 2023 KTM 890 Adventure R 1971 Norton 750 Commando Alcon Brake Kits |
||
![]() |
|
![]() |
Registered
Join Date: Jun 2004
Location: Friendswood, TX
Posts: 500
|
Yep, set at 90 to 100 psig. I let it soak with Kroil (liquid wrenchish stuff my Dad uses on his guns) over night and alternated carb cleaner and Kroil under air pressure with wooden dowels rapped with teflon as plugs. That is how I got three cleared. One would not clear at all. And, I never got the two that were not checking in the reverse flow to check. That is what put me over the edge to take it to the machiene shop. I was worried that the springs may be broken in them.
__________________
John F. Lewis 74' 911S Targa + 930/02 76' 914 - Eternal Type IV project FOR SALE |
||
![]() |
|
Registered
Join Date: May 2001
Location: Peoples Republic of Long Beach, NY
Posts: 21,140
|
Quote:
__________________
Ronin LB '77 911s 2.7 PMO E 8.5 SSI Monty MSD JPI w x6 |
||
![]() |
|
Bird. It's the word...
|
I replaced two of mine that couldn't get to clear... not difficult and quite inexpensive at $5 a squirter.
__________________
John Forcier Current: 68L 2.0 Hotrod - build underway |
||
![]() |
|