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Caveman Hammer Mechanic
 
ClickClickBoom's Avatar
 
Join Date: Feb 2009
Location: Boulder Creek CA
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CIS gremlins Pt2

Hey got the decell valve working. The next question is: How much should the idle drop when the oil cap is taken off? I get no drop, is there a obvious answer?
Thanks
eric

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Old 08-25-2009, 07:52 PM
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it shoud be noticeable, how much? i dont know, 2-300 rpm maybe.
replace the gasket in the oil cap and check the hose from the engine to the tank and then to the back of the "turtle" the rubber boot on the AFM. if that is good, maybe the gasket on the cover on the rear of the motor.
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Old 08-26-2009, 03:10 AM
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Your header says you have a 75S. Rpm drops are from opening the oil tanks sealed system on a 78 and later. Remember your tank vents to the airbox before the filter so your tank is always open.
If you wanted to change that all you have to do is install the SC black boot between the airflow sensor and the throttle body then install the hose from the tank to the boot in the front.\Bruce
Old 08-26-2009, 03:17 AM
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good catch. i posted a thread a while back encouraging people to put the year of their car in the title of the thread or the body, now you know why.
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86 930 94kmiles [__] RUNNING:[__] NOT RUNNING: ____77 911S widebody: SOLD
88 BMW 325is 200K+ SOLD
03 BMW 330CI 220K:: [__] RUNNING: [__] NOT RUNNING:
01 suburban 330K:: [__] RUNNING: [__] NOT RUNNING:
RACE CAR:: sold
Old 08-26-2009, 05:20 AM
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Caveman Hammer Mechanic
 
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Thanks guys!
The FSM talks about the oil cap gasket but gives no symptoms nor indications.
Gotta love this board!
eric
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1984 Carrera El Chupacabra
1974 Toyota FJ40 Turbo Diesel
"Easy, easy, this car is just the right amount of chitty"
"America is all about speed. Hot,nasty, bad ass speed."
Eleanor Roosevelt, 1936
Old 08-26-2009, 07:15 AM
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Quote:
Originally Posted by Flat6pac View Post
Your header says you have a 75S. Rpm drops are from opening the oil tanks sealed system on a 78 and later. Remember your tank vents to the airbox before the filter so your tank is always open.
If you wanted to change that all you have to do is install the SC black boot between the airflow sensor and the throttle body then install the hose from the tank to the boot in the front.\Bruce
What would be the benefit of doing this to an early car?

Regards,
Ed

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Old 09-23-2009, 04:53 PM
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