Question about 1993 Mazda RX-7

1 Answer

Tapping Noise at idle 1994 Dodge Dakota 3.9L 5 speed manual

When I'm at idle, there is a tapping noise. Sounds like a loose valve? Can I tighten the valves on this p/u by removing the valve covers? How do I silence the noise. I've tried Marvel magic oil, engine lifter stuff and nothing. Any answers would be appreciated.

Posted by on

  • larryflores2 Jun 05, 2009

    Ok. I removed one valve cover today 6/4/09 and found no where to adjust.I used the handle part of a large screwdriver and placed pressure to the bottom arm and it seemed to reduce the noise. It has one bolt in the middle of the arm. I tried to tighten but it did no good. So I brought it back to the beginning
    So how or what do I do to stop the noise. Sounds like a loose valve from my old car days, but louder.

×

Ad

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    Renaissance:

    An user who is expert in 3 categories / brands.

  • Mazda Master
  • 545 Answers

For v-6....3.9L

These engines are equipped with hydraulic lash adjusters designed to maintain zero lash at all times.

for 4 cyl...2.5 sohc
Valve Lash
Non-adjustable Dry Lash 0.024-0.060 inch.

for v8,...5.2---These engines use hydraulic lifters. No provision for adjustment is provide

Posted on Jun 04, 2009

Ad

1 Suggested Answer

6ya6ya
  • 2 Answers

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

Hi,
a 6ya expert can help you resolve that 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.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

Ad

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

Tapping noise from engine


That could be a whole host of things.If the tapping increases in speed with rpm you are looking possibly internal but if not the problem could be something loose like the exhaust pipe.

Aug 02, 2016 | Cars & Trucks

1 Answer

Audi a4 1998 tapping noise only when idles under valve cover


Sounds like a bad valve lifter or a valve out of adjustment. It's probably a bad hydraulic valve lifter. In idle, when the oil pressure is lowest, it is not filling with oil. When the motor revs up, oil pressure rises and fills the faulty lifter.
If you do have mechanical lifters, the valve is probably out of adjustment. If you do car work, pull the valve cover and see if it's adjustable. Of course, you'll need the specs from VW/Audi.
Otherwise, it's probably a shop job.
Sorry.

Jul 05, 2014 | 1998 Audi A4

1 Answer

Tapping noise from engine


Usually, this would indicate sticking valve lifters !!

Feb 24, 2013 | 2007 Dodge Grand Caravan SXT Minivan

1 Answer

The front is making a tapping noise


Could be valve lifters tapping which is most common, there could be a vacuum leak or something rubbing against the fan.

Oct 28, 2009 | 1998 Dodge Grand Caravan

1 Answer

ENGINE HAS A TAPPING NOISE AND IT SPEEDS UP WHEN THE ENGINE SPEEDS UP, SOUNDS LIKE IT IS IN THE DRIVERS SIDE FRONT


Make sure the oil is not low first, this sounds like valve trane noise, check the valve rocker clearances they may be loose.

Jul 16, 2009 | 2002 Chevrolet TrailBlazer

2 Answers

Vw t4 '03 tapping noise


Hi,

Next time it's tapping at idle, press the brake pedal hard several times. If it stops tapping then gradually returns then it is a noisy vacuum pump.

It can go on like that or years (if you can put up with the tapping that is!) if you start to loose servo assistance while manovering then it's time to change the pump.

Hope that helps.

Apr 29, 2009 | 2005 Volkswagen Microbus

1 Answer

Loud tapping noise under hood of my 06 chrysler 300c


CHECK THE OIL LEVEL, IT MAY BE LOW AND WHAT YOU HEARS IS A VALVE TAPPING.

Dec 10, 2008 | 2007 Chrysler 300c AWD Sedan New Cars

1 Answer

2001 Chevy Metro


Check Utube for lifter tap, valve tap, and rod bearing noise. If you pull each spark plug one at a time, plugging it back in after each one, the tapping will go away if it's a rod bearing. At any rate, on your next oil change add some valve-medic or similar additive for valve noise. Make sure you follow direction or you will get massive lifter tap if you pour it into a cold engine.

Oct 29, 2008 | 2001 Chevrolet Metro

Not finding what you are looking for?
1993 Mazda RX-7 Logo

956 people viewed this question

Ask a Question

Usually answered in minutes!

Top Mazda Experts

yadayada
yadayada

Level 3 Expert

76164 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22156 Answers

Jeff Turcotte
Jeff Turcotte

Level 3 Expert

8273 Answers

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

Answer questions

Manuals & User Guides

Loading...