Tweet
Ok my engine is making an interesting noise. it sounds like the suction of the intake at an idle but its not coming from the filter. it sounds like a loud vacumm leak coming directly from underneath the uim. so i took the upper off to see if it was cracked. nothin, and ther is no vacumm lines unhooked. im thinkin ether the lim gasket or an injector o ring. the thing is it seems to be running ok???
-
1996 Beretta
3100 SFI TURBO
T28 60 Trim Turbo at 9psi, Stage 1 turbo cam mms, lifter upgrade springs mms, P&P heads, ls6 Valve Springs, Ported exhaust manifolds, Hyperuetectic pistons SP, 3.29 trani, MSD 8.5 wires, open exhaust, Pulstar plugs, 3400 intake manifolds, ported TB, 36 lb/hr injectors, RCI Fuel cell, Walbro 255 pump, A/C Bypass, and much more.
13.1 @ 103 mph best in the 1/4 mile -
pvc hose cracked?Andy
sigpic
fastest 1/8: 10.19@ 67.17
fastest 1/4: 16.16@ 82.70
62mm TB, 1.6 roller tip rockers, Ostrich 2.0, UD pulley, TB heater bypass, K&N, 180* stat, No cat, 99Grand AM dual cooling fans. 4T65E swap FDR 3.69, EP LSD, F.A.S.T. transmission controller, TransGo shift kit.
-
check for leaks w/ bottle of propane and torch put a ruber hose on the end of the torch to get to those hard to reach spots. If the rpms change you have found your leak. I use this a lot to trouble shoot, works pretty well.Where ever you go.... There you are. (Buckaroo Banzai 1984)Comment
-
found it it was actually a hidden vacumm line in the back.
1996 Beretta
3100 SFI TURBO
T28 60 Trim Turbo at 9psi, Stage 1 turbo cam mms, lifter upgrade springs mms, P&P heads, ls6 Valve Springs, Ported exhaust manifolds, Hyperuetectic pistons SP, 3.29 trani, MSD 8.5 wires, open exhaust, Pulstar plugs, 3400 intake manifolds, ported TB, 36 lb/hr injectors, RCI Fuel cell, Walbro 255 pump, A/C Bypass, and much more.
13.1 @ 103 mph best in the 1/4 mileComment
-
Propane? I have heard of using carb spray to see if the RPM changes.Ben
60DegreeV6.com
WOT-Tech.comComment
-
Propane works too. Might even be safer than if you spray carb cleaner on hot exhaust manifolds on accident. Propane could build up though too. Best to do either test on a cold engine to reduce the risk of fire outside of the motor.
Heh that reminds me McGavin (dude with m90 sticking out of his hood) had a propane injection system he built up. Heh.sigpic
New 2010 project (click image)
1994 3100 BERETTA. 200,000+ miles
16.0 1/4 mile when stock. Now ???
Original L82 Longblock with LA1, LX9, LX5 parts
Manifold-back 2.5" SS Mandrel Exhaust. Hardware is SS too.
Comment
-
propane... now THAT is a neat idea!
I've always used starting fluid- and it works great... but I like the idea of a rubber hose for those hard-to-reach areas.Comment
Comment