|
Sponsored Links (Register now to hide all advertisements) |
|
|
Thread Tools | Display Modes |
10-16-2018, 07:18 AM | #1 |
Member
Join Date: Dec 2016
Location: Switzerland
Posts: 59
|
Whistle sound from new timing gear
Hi,
I installed a new “Model A Aluminum Timing Gear” and a new “Model A Camshaft Thrust Plunger with spring”. Now I always hear a pretty loud whistle sound from there.( I didn’t have this before) Is there maybe not enough lubrication ? How is it lubricated ? Thanks for help Willi |
10-16-2018, 08:28 AM | #2 |
Senior Member
Join Date: May 2010
Location: Young Harris, GA
Posts: 1,808
|
Re: Whistle sound from new timing gear
It is lubricated by oil spilling out the front of the valve chamber on the side of the engine and falling down on the gears.
If the fan belt is connected, temporarily disconnect it and see if the noise is still there. The noise might be from the water pump or generator/alternator turning. Does the pitch of the sound change with RPM? If so, you might be hearing the steel gear teeth contacting the aluminum gear teeth. Ford used a fiber gear to reduce noise. .
__________________
Jim Cannon Former MAFCA Technical Director "Have a Model A day!" |
Sponsored Links (Register now to hide all advertisements) |
|
10-16-2018, 02:14 PM | #3 |
Senior Member
Join Date: May 2010
Location: Santa Rosa, CA
Posts: 1,276
|
Re: Whistle sound from new timing gear
I drill a 1/16" hole in the top of the plunger housing. Did you check the camshaft to crank gear clearance. Should be around .003-4
|
10-16-2018, 03:04 PM | #4 |
Senior Member
Join Date: May 2010
Location: Jordan, MN
Posts: 1,410
|
Re: Whistle sound from new timing gear
The whistle or "squeal" may be the new plunger spinning in the front cover housing bore. It will often take a bit of time for this noise to subside. A few minutes usually.
The noise of a new aluminum timing gear mating with the steel crank gear is more of a whine. This too will subside with a bit of running time. Unless, as PC/SR brings up, there is lack of clearance. Concerned about oil flow over the timing gear? Remove the timing pin and start the engine. If there is oil flowing over the timing gear it will work its way out of the timing pin hole. Hope it's all as simple as I describe and it goes away within a short time. Good Day! |
10-16-2018, 04:39 PM | #5 |
Senior Member
Join Date: May 2010
Location: Mpls, MN
Posts: 27,582
|
Re: Whistle sound from new timing gear
The timing gear plunger MUST be greased when it's installed. One guy didn't lube it during installation, and it took several heat/cool run cycles before the squeal finally stopped for good.
|
10-17-2018, 03:07 PM | #6 |
Senior Member
Join Date: May 2010
Location: Santa Rosa, CA
Posts: 1,276
|
Re: Whistle sound from new timing gear
Sponsored Links (Register now to hide all advertisements)
|
10-18-2018, 03:45 AM | #7 |
Member
Join Date: Dec 2016
Location: Switzerland
Posts: 59
|
Re: Whistle sound from new timing gear
"Remove the timing pin and start the engine. If there is oil flowing over the timing gear it will work its way out of the timing pin hole."
Thanks, this is a very good and simple test. Thanks |
10-18-2018, 03:48 AM | #8 |
Member
Join Date: Dec 2016
Location: Switzerland
Posts: 59
|
Re: Whistle sound from new timing gear
|
Thread Tools | |
Display Modes | |
|
|
Sponsored Links (Register now to hide all advertisements) |
|