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surfertoad
Samba Member
Joined: May 14, 2004
Posts: 11
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 Posted: Thu Nov 20, 2014 5:34 pm Post subject: Rear Rattle Noise after letting off gas on 74 type 3...help |
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I have a 74 type 3 square back. After reving the engine, I get a rattle noise, like fan is loose. I tightened pulley ( all spacers in place), flywheel is tight and has proper end play...Just not sure what this is. Anyone have an idea???
Greatly appreciated
Charles |
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ataraxia
Samba Member
Joined: March 19, 2010
Posts: 4504
Location: Illinois
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| Posted: Thu Nov 20, 2014 9:25 pm Post subject: Re: Rear Rattle Noise after letting off gas on 74 type 3...h |
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| surfertoad wrote: |
| I have a 74 type 3 square back. |
You sure it's not a Type 4?  |
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surfertoad
Samba Member
Joined: May 14, 2004
Posts: 11
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| Posted: Thu Nov 20, 2014 10:55 pm Post subject: |
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| Yes, last of the type 3 sq. Bk. It is a 74, fab in late 1973. |
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KTPhil 
Samba Member
Joined: April 06, 2006
Posts: 34009
Location: Conejo Valley, CA
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| Posted: Thu Nov 20, 2014 10:59 pm Post subject: |
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| Heat shields on the muffler often crack and will rattle at a resonant frequency. |
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Tram
Samba Socialist
Joined: May 02, 2003
Posts: 22727
Location: Still Feelin' the Bern- Once you've felt it you can't un- feel it.
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| Posted: Thu Nov 20, 2014 11:02 pm Post subject: |
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| surfertoad wrote: |
| Yes, last of the type 3 sq. Bk. It is a 74, fab in late 1973. |
Type 3 production ended mid July 1973. 1. August 1973 was the beginning of the 1974 model year. There was never a '74 Type 3 made, sorry.
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| Bryan67 wrote: |
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chaosisme
Samba Member
Joined: August 29, 2005
Posts: 1256
Location: Orange County, Ca
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| Posted: Thu Nov 20, 2014 11:56 pm Post subject: Re: Rear Rattle Noise after letting off gas on 74 type 3...h |
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| surfertoad wrote: |
I have a 74 type 3 square back. After reving the engine, I get a rattle noise, like fan is loose. I tightened pulley ( all spacers in place), flywheel is tight and has proper end play...Just not sure what this is. Anyone have an idea???
Greatly appreciated
Charles |
If its really a type 3, have you checked your inner fan? They wear out over time and can cause the rattle you seem to describe.
_________________
'65 1500 S [quareback]
'68 FI Sunroof Squareback
'70 Westy
OCT3 - Orange County Type 3's |
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surfertoad
Samba Member
Joined: May 14, 2004
Posts: 11
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| Posted: Fri Nov 21, 2014 12:18 am Post subject: |
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This is a 74 sqbk. (Variant) typical of the 71 to 73 model. Registration and pink say same with 1 owner.
The the subject of a worn fan, how can I identify what is worn ? All was tight when installed. Thanks again |
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chaosisme
Samba Member
Joined: August 29, 2005
Posts: 1256
Location: Orange County, Ca
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| Posted: Fri Nov 21, 2014 12:33 am Post subject: |
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| surfertoad wrote: |
This is a 74 sqbk. (Variant) typical of the 71 to 73 model. Registration and pink say same with 1 owner.
The the subject of a worn fan, how can I identify what is worn ? All was tight when installed. Thanks again |
The inner fan has a rubber bushing that acts as a damper and its held together with rivets. Over time it wears out and rattles. Im not really sure there's any way to permanently fix a worn out fan, just try to find a good used replacement.
My brother (Turbomicrowaves) recently had his cooling system apart and tightened the rivets by hammering on them, you might PM him and ask him what exactly he did.
_________________
'65 1500 S [quareback]
'68 FI Sunroof Squareback
'70 Westy
OCT3 - Orange County Type 3's |
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KTPhil
Samba Member
Joined: April 06, 2006
Posts: 34009
Location: Conejo Valley, CA
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| Posted: Fri Nov 21, 2014 9:07 am Post subject: |
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| surfertoad wrote: |
| This is a 74 sqbk. (Variant) typical of the 71 to 73 model. Registration and pink say same with 1 owner. |
What are the first digits of the VIN? It's probably a late '73 registered based on the date of sale, not the year of manufacturer. |
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surfertoad
Samba Member
Joined: May 14, 2004
Posts: 11
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| Posted: Fri Nov 21, 2014 12:35 pm Post subject: |
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| chaosisme wrote: |
| surfertoad wrote: |
This is a 74 sqbk. (Variant) typical of the 71 to 73 model. Registration and pink say same with 1 owner.
The the subject of a worn fan, how can I identify what is worn ? All was tight when installed. Thanks again |
The inner fan has a rubber bushing that acts as a damper and its held together with rivets. Over time it wears out and rattles. Im not really sure there's any way to permanently fix a worn out fan, just try to find a good used replacement.
My brother (Turbomicrowaves) recently had his cooling system apart and tightened the rivets by hammering on them, you might PM him and ask him what exactly he did. |
You have number? Thx Also, there are 2 threaded holes that had bolts tightened in them. Are those suppost to be there or are they just for removal?
Thx |
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eyetzr
Samba Member
Joined: October 09, 2013
Posts: 1425
Location: Toronto, Ontario. Canada
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| Posted: Fri Nov 21, 2014 12:37 pm Post subject: |
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Threaded holes for fan removal. There was a post on noisy fans as well as fan disassembly not too long ago.
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I think he meant "rare", as in "not well-done" |
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blankmange
Type 3 Darksider
Joined: July 17, 2004
Posts: 11498
Location: Bloßer Stahl-preapocalyptic MidCoast
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| Posted: Fri Nov 21, 2014 1:06 pm Post subject: |
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| Tram wrote: |
| surfertoad wrote: |
| Yes, last of the type 3 sq. Bk. It is a 74, fab in late 1973. |
Type 3 production ended mid July 1973. 1. August 1973 was the beginning of the 1974 model year. There was never a '74 Type 3 made, sorry. |
perhaps a picture of said Type 3, Ron?
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póg mo thóin
Certified DHS Technician
Samba Member # 24517 |
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chaosisme
Samba Member
Joined: August 29, 2005
Posts: 1256
Location: Orange County, Ca
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| Posted: Fri Nov 21, 2014 3:44 pm Post subject: |
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| surfertoad wrote: |
| chaosisme wrote: |
| surfertoad wrote: |
This is a 74 sqbk. (Variant) typical of the 71 to 73 model. Registration and pink say same with 1 owner.
The the subject of a worn fan, how can I identify what is worn ? All was tight when installed. Thanks again |
The inner fan has a rubber bushing that acts as a damper and its held together with rivets. Over time it wears out and rattles. Im not really sure there's any way to permanently fix a worn out fan, just try to find a good used replacement.
My brother (Turbomicrowaves) recently had his cooling system apart and tightened the rivets by hammering on them, you might PM him and ask him what exactly he did. |
You have number? Thx Also, there are 2 threaded holes that had bolts tightened in them. Are those suppost to be there or are they just for removal?
Thx |
I'll check my parts manual when I get home.
_________________
'65 1500 S [quareback]
'68 FI Sunroof Squareback
'70 Westy
OCT3 - Orange County Type 3's |
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Bobnotch
Samba Member
Joined: July 06, 2003
Posts: 22422
Location: Kimball, Mi
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Tram
Samba Socialist
Joined: May 02, 2003
Posts: 22727
Location: Still Feelin' the Bern- Once you've felt it you can't un- feel it.
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| Posted: Fri Nov 21, 2014 9:23 pm Post subject: |
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| KTPhil wrote: |
| surfertoad wrote: |
| This is a 74 sqbk. (Variant) typical of the 71 to 73 model. Registration and pink say same with 1 owner. |
What are the first digits of the VIN? It's probably a late '73 registered based on the date of sale, not the year of manufacturer. |
It has to be. There never was a 364 vin.
_________________
Немає виправдання для війни! Я з Україною.
| Bryan67 wrote: |
| Just my hands. And a little lube. No tools. |
To best contact me, please use the EMAIL function in my profile |
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chaosisme
Samba Member
Joined: August 29, 2005
Posts: 1256
Location: Orange County, Ca
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| Posted: Fri Nov 21, 2014 11:21 pm Post subject: |
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The part number you asked about for the fan is
311.119.105E
or
311.119.105G (Hub 0.5mm oversize)
_________________
'65 1500 S [quareback]
'68 FI Sunroof Squareback
'70 Westy
OCT3 - Orange County Type 3's |
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