Question about 1989 Chevrolet Corvette

1 Answer

My distributor gear on my 89 Chevy 5.7 motor with hydraulic roller cam keeps getting chewed up.I've tried a bronze gear and a steel gear and still the same problem.What's wrong?

Posted by on


1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points


    An expert that got 20 achievements.


    An expert that got 10 achievements.


    An expert that got 5 achievements.

  • Chevrolet Master
  • 6,982 Answers

You can try putting a thrust button on the front of the cam (available at speed shops) That will keep the cam from walking back and forth. Also, check the shims between the gear and housing. if I remember correctly the clearance there is minimum of 15 thousandths. If it's tighter than that it may bind on the cam gear. Also, if the gear has failed multiple times take a good look at the teeth on the cam. If they have become damaged, it will continue to "eat" dist gear unless you remove the cam and either "dress" the gear or change the cam.

Posted on Sep 05, 2009

Testimonial: "Great advise.I took the motor out the car and removed the cam to find there was no cam protector plate holding the cam in place.So the cam was walkin."


1 Suggested Answer

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi there,
Save hours of searching online or wasting money on unnecessary repairs by talking to a 6YA Expert who can help you resolve this issue over the phone in a minute or two.

Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.

Here's a link to this great service

Good luck!

Posted on Jan 02, 2017


Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

1 Answer

Trying to get my 360 mopar running after rebuild

If that motor doesn't have hydraulic lifters, try loosening your rocker shafts. It will clatter, but it will run. That's what I had to do on my old slant 6.

Nov 03, 2016 | Cars & Trucks

1 Answer

How does the distributor housing and gear get lubrication

Your distributor gear is oiled by runoff that drips onto the corresponding gear on the camshaft. by design, a small amount of oil is either drawn up the shaft or is introduced by a small oiling hole in the side of the housing if needed. The bushings in a distributor are often made from oilite which is bronze with a lubricant impregnated into it, or aluminum that has been chemically hardened to prevent wear.
Replacing distributor bushings used to be common but today, it's really difficult to find bushing sets so it's generally easier to just replace it with a rebuilt one.
If your engine is eating distributor gears, look into the hole where the distributor goes and check the cam gear. If that gear is damaged you may need a new cam. In that case I'd also check cam end play. If excessive you may need to replace a thrust plate or add a thrust button to limit movement. (depends on which engine you have)

Feb 21, 2011 | Jeep Wrangler Cars & Trucks

1 Answer

On a '99 Chevy Astro, I was getting multiple engine misfire code, so I installed a new distributor. That fixed the misfire, but then I got PO 340 (cam position sensor). Why would a new distributor cause...

You may be out by one tooth on your new distributor installation.Try advancing or retarding by one tooth by removel and reinstalling distributor.I do not think there is anything wrong with your Cam position sensor. In fact I think it is trying to tell you that the gears on the distributor are not in propper position with the gears on the cam so give it a try and good luck.

Dec 05, 2010 | 1999 Chevrolet Astro

1 Answer

I have a 1998 chevy suburban that I bought. The motor was bad (through the number 5 piston) I put a nother motor in it but the block that I put in was a older block four bolt I put a steel crank in it and...

you cant use the cam gears on your "new motor' the cam gear from the old one must be used if it will fit.the starter problem could be a bad solonoid or a wireing problem cant tell by your desciption.

Jul 17, 2010 | 1998 Chevrolet Suburban

1 Answer

Drive gear on distributor wearing teeth off how

I would say if its happend more than once its a cam problem, but then again i don't know if the cam has been chg. to an aftermarket or if it is the stock cam and weather its an aftermarket distributor or a stock one, witch could play a part in your problem.

Dec 22, 2009 | 1997 Chevrolet K1500

3 Answers

Need firing order for plugs to distributor chevy 89 s10 4.3

Here is the image if you need it:

Facing your engine:
6 5
4 3
2 1
Clockwise rotation of distributor, 1-6-5-4-3-2

Sep 13, 2009 | Chevrolet Blazer Cars & Trucks

4 Answers

Distributor cap and rotor location on chevy silverado

Most chevy 5.3 do not use a cap and rotor. Most have single coil per spark plug and wire. Trace spark plug wires to coil usually above the valve cover.

Dec 28, 2008 | Chevrolet Silverado 1500 Cars & Trucks

2 Answers

Lincoln distributor

Make sure the tensioner is tight to the specifications and in propper place.
You may need to Replace Your Timing Belt if you don't fix it putting it in tension.
Timing belt slipping off can badly damage valves, causing a damage that requires an expensive repair, do not circulate if timing belt is not OK, see :Cost estimate for valve job after timing belt slip

Jul 28, 2008 | 1998 Lincoln Town Car

Not finding what you are looking for?
Cars & Trucks Logo

373 people viewed this question

Ask a Question

Usually answered in minutes!

Top Chevrolet Experts


Level 3 Expert

80339 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22326 Answers

Ronny Bennett Sr.
Ronny Bennett Sr.

Level 3 Expert

6927 Answers

Are you a Chevrolet Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides