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Username Post: Cam Gear noise        (Topic#349511)
garykrig 
Forum Newbie
Posts: 5

Reg: 02-05-18
02-05-18 10:13 AM - Post#2723433    

I recently had the timing gears replaced in my 53 with a power glide. the engine sounds fine at idle but as I rev it up it sounds like a rubbing noise, as the rpm increase the noise goes away. The only thing I can think of is the cam was not pressed on with the right clearance between the gear and the thrust plate,or I have also read where the cam needs to be aligned with the crank shaft with thrust plate gaskets. I am trying to figure out what may be wrong before it has to be tore down again.



 

Shepherd 
Frequent Contributor
Posts: 1129

Loc: Lake George, NY
Reg: 11-11-15
02-05-18 01:09 PM - Post#2723446    
    In response to garykrig

Welcome to CT. Did this noise start after the work was done?



 
cbmkr56 
Silver Supporting Member
Posts: 987
cbmkr56
Age: 61
Loc: Basehor Ks
Reg: 02-11-13
02-05-18 05:17 PM - Post#2723468    
    In response to garykrig

I answered this question early in another thread.



 
Shepherd 
Frequent Contributor
Posts: 1129

Loc: Lake George, NY
Reg: 11-11-15
02-05-18 05:34 PM - Post#2723470    
    In response to cbmkr56

Didn't see that one, doesn't mean you couldn't answer me!



Edited by Shepherd on 02-05-18 05:37 PM. Reason for edit: No reason given.

 
bobt 
Contributor
Posts: 129

Loc: colonial heights va
Reg: 06-28-14
02-06-18 03:30 AM - Post#2723497    
    In response to garykrig

Did you try removing the fan belt and running the engine to see if the noise is still there? bobt



 
garykrig 
Forum Newbie
Posts: 5

Reg: 02-05-18
02-06-18 05:40 AM - Post#2723506    
    In response to bobt

Yes I ran it without the belts. I am positive it is the cam gear. I am going to pull the fuel pump tonight to see if and how much it moves, Thank You



 
garykrig 
Forum Newbie
Posts: 5

Reg: 02-05-18
02-06-18 05:55 AM - Post#2723507    
    In response to Shepherd

Yes, the noise started after the work was done. Some teeth came off the old fiber gear. I asked the mechanic yesterday if he checked the alignment of the crankshaft and the thrust plate, his reply was he checked it after the gears were installed. I am pretty certain that is where the problem is.



 
2blu52 
"17th Year" Silver Supporting Member
Posts: 18247
2blu52
Age: 84
Loc: Montana
Reg: 03-12-02
02-06-18 06:09 AM - Post#2723508    
    In response to garykrig

How did he clean up the loose tooth material?

"PEACE IS THAT GLORIUS MOMENT IN HISTORY WHEN EVERY ONE STANDS AROUND RELOADING"

THOMAS JEFFERSON


 
garykrig 
Forum Newbie
Posts: 5

Reg: 02-05-18
02-07-18 05:04 AM - Post#2723609    
    In response to 2blu52

Pan was removed and everything was cleaned up.



 
2blu52 
"17th Year" Silver Supporting Member
Posts: 18247
2blu52
Age: 84
Loc: Montana
Reg: 03-12-02
02-07-18 05:07 AM - Post#2723611    
    In response to garykrig

  • garykrig Said:
Pan was removed and everything was cleaned up
Good!


"PEACE IS THAT GLORIUS MOMENT IN HISTORY WHEN EVERY ONE STANDS AROUND RELOADING"

THOMAS JEFFERSON


 
Gene_Schneider 
Ultra Senior Member
Posts: 12082

Loc: Wisconsin..USA
Reg: 09-27-02
02-09-18 07:32 AM - Post#2723865    
    In response to 2blu52

If the later style thrust plate (with the spacer ring) was used adding gaskets is not necessary. Also adding gaskets (or not) will ot cause the gears to rub on anything.
Was the steel gear replaced? If not the noise could be coming from it having worn teeth. The steeth get a wear pattern from the old fiber gear.
Also if the front mount plate was not removed the oil slot on the back of the plate may be plugged with sludge (usually is that is why original gear fails). When it is plugged the timing gears get no lubrication.

ChevGene 1934 Master sedan 1939 Master DeLuxe Town Sedan 1950 Styline DeLuxe Power Glide 1957 Nomad 283 PG 1963 Corvair Convertible


 
Rustchips 
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Posts: 1070
Rustchips
Age: 80
Loc: DFW Texas
Reg: 02-24-05
02-09-18 11:27 AM - Post#2723885    
    In response to Gene_Schneider

.
Also if the front mount plate was not removed the oil slot on the back of the plate may be plugged with sludge (usually is that is why original gear fails). When it is plugged the timing gears get no lubrication.


Good Point

1928 Chevy Coupe
1942 Chevy Special Deluxe Coupe
1955 Chevy Bel Air HTP
1970 El Camino
1990 F##d Mustang Convertible

Life is like a roll of toilet paper the nearer the end the faster it goes.


 
garykrig 
Forum Newbie
Posts: 5

Reg: 02-05-18
02-11-18 07:39 PM - Post#2724120    
    In response to Gene_Schneider

Both gears are new. I pulled the fuel pump this morning and tried to move the cam, it would not move. I told the mechanic to check to make sure nothing was plugged because I suspected lack of lubrication may have caused the problem. I am quite he did not check behind the plate.



 

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