That noise can't be good

Juancho · Samba Member Joined: May 05, 2003 Posts: 156

I noticed an awful screeching sound coming from my motor the other day. Sounds very much like the metal on metal sound of squealing breaks. I can only hear the noise when the engine is at idle. I drove my Æ71 Westy into work today, and I noticed that the sound is getting worse. However, there is no noticeable performance loss or change in drivability yet. When I parked the car, I went to the back to see if I could isolate where the noise is coming from. The screeching is nearly deafening from under the car. It sounds like it is either coming from inside the block or the heads. I am pretty sure the problem is fatal, but I just do not know what it is. Any ideas?

jeremyrockjock · Posted: Tue Jun 03, 2003 12:25 pm Post subject: That noise can't be good

If it sounds that bad your best plan is just pull it apart. I'm sure that it will be obvious once to get into it. Good Luck-Jeremy

jeremyrockjock · Posted: Tue Jun 03, 2003 12:26 pm Post subject: That noise can't be good

Before it does more damage. -Jeremy

[email protected] · Posted: Tue Jun 03, 2003 12:50 pm Post subject: That noise can't be good

Check your belt for slippage first. Could be a throwout bearing also. Good luck.

Juancho · Samba Member Joined: May 05, 2003 Posts: 156

If it is the Trowout Bearing, will the noise change when I push in the clutch?

Juancho · Samba Member Joined: May 05, 2003 Posts: 156

I think I may have found a clue. I just discovered an oil leak, which appears to be coming from the vicinity of the #3 cylinder. I suspect the pushrod tubes are leaking. Could this cause the pushrods to make a funny squeaking noise?

nodtobob · Posted: Tue Jun 03, 2003 4:17 pm Post subject: That noise can't be good

Maybe if the pushrod tube is obviously bent inward, and rubbing against the moving pushrod but unless you don't have your tin on there it would be hard for something to hit and bend it that much. I would check into the throwout bearing and clutch components. One more idea is to check your fan something could have loosened up and your fan is rubbing in the fan shroud which will make a loud noise!! Good luck.. anthony

Juancho · Samba Member Joined: May 05, 2003 Posts: 156

I am pretty sure the clutch is fine. The transmission is new, and the sound doesn't change when I push the clutch in. I am starting to think that it may just be a loose heater box bracket, or a loose exhaust bracket. Or maybe I am just in denial, and want to believe it is one of these things. Either way, I will check the engine over from top to bottom this weekend, tightening all the bolt and brackets. Thanks to everyone for your help.

[email protected] · Posted: Wed Jun 04, 2003 1:01 pm Post subject: That noise can't be good

I had a terrible screeching from a fan inside the shroud on my 69 912. It could be you are hearing the noise thru the outs on the fan housing.It is a much cheaper fix than pulling the engine apart.

Good Luck.

[email protected] · Samba Member Joined: February 03, 2003 Posts: 196

You don't have a spare motor for that 912 do you? Looking for a project motor.

Mike K

[email protected] · Posted: Wed Jun 04, 2003 1:56 pm Post subject: That noise can't be good

No, sorry...no 912 motor


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