Belleville washers
Belleville washers
The four center bolts on the intake manifold include Belleville washers.
What is their purpose? There are two per bolt.
What is their purpose? There are two per bolt.
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Re: Belleville washers
um... never heard of this type of washer being used on the intake... I'm guessing someone put those there and they weren't there before. Especially if there are two per bolt... GM would never do something like that.
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Re: Belleville washers
Ya that is something you would never see on our cars.
On an Intake manifold? WHY?
On an Intake manifold? WHY?
Eric
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"Where we're not happy 'til YOU'RE not happy!
'91 California Quad
'92 3500 GT gone and not really missed. It was fun. Documented 13.47 N/A.
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Re: Belleville washers
Well throw the damn things away. You don't require them!
There is absolutely no pressure or force there for that requirement.
Both Jon and I have quite a bit of experience with these engines, and they are not required!

There is absolutely no pressure or force there for that requirement.
Both Jon and I have quite a bit of experience with these engines, and they are not required!

Eric
Asylum Motorsports
"Where we're not happy 'til YOU'RE not happy!
'91 California Quad
'92 3500 GT gone and not really missed. It was fun. Documented 13.47 N/A.
Asylum Motorsports
"Where we're not happy 'til YOU'RE not happy!
'91 California Quad
'92 3500 GT gone and not really missed. It was fun. Documented 13.47 N/A.
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Re: Belleville washers
I guess it would have helped to identify lower intake manifold... Would have made a bit more sense.
And to add to it if it's in the manual then why are you asking about it?
The lower intake is held down with 4 long bolts on the 3x00 motors and there is only a single washer that's center is rubber lined... The dual stacked washes is what made me think it was not an original item.
And to add to it if it's in the manual then why are you asking about it?
The lower intake is held down with 4 long bolts on the 3x00 motors and there is only a single washer that's center is rubber lined... The dual stacked washes is what made me think it was not an original item.
Re: Belleville washers
"intake manifold" per Service Manual
Curious
again, Service Manual shows two per bolt
Curious
again, Service Manual shows two per bolt
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Re: Belleville washers
Yes there is an UPPER and a LOWER... Clarity on what your describing can sometimes help eliminate confusion.
And once again I say... if your going by the "book" why are you asking about them... Just use them.
If you want to know why they are used then just look up what they do...
https://en.wikipedia.org/wiki/Belleville_washer
And once again I say... if your going by the "book" why are you asking about them... Just use them.
If you want to know why they are used then just look up what they do...
https://en.wikipedia.org/wiki/Belleville_washer
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Re: Belleville washers
If I recall correctly, my 2.8 and 3.1 engines had the dual washers on the lower intake manifold as well. I don't recall seeing them on the 3x00 setups.
-Aaron
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'91 Olds Cutlass Calais Quad 442 W41 2.3L 5M - (I hate red)
'92 Beretta GTZ 2.3L 5M - Undergoing "unibody off" restoration ATM.
'93 Beretta GT 3.1 5M (daughter's car!)
'96 Beretta Base 2.2 5M (new project!)
'11 Malibu LTZ 3.6L HF 6A
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