displaying posts 1 to 8 of 8

Author Subject: High mileage engine advise: tapper?
Doogle

Newbie

Location: Wirral

Registered: 23 Sep 2018

Posts: 4

Status: Offline

Post #1
This has been covered a lot over the years but I'm after any views or advice on where I should go with my engine.

I'm inclined to think my engine is a tapper but not so sure not if it's the valves or piston rings causing loss of compression. Theres definitely a tapping noise compared to videos I've watched. Not as loud as some. Also on cold start the tapping is sometimes much quieter that when the engine is warm.

Just had my mechanic do a compression test.
The readings were very similar open and closed throttle.

85 85 95 85

When putting oil in the bores we got :

175 150 175 175.

He suspects worn piston rings causing low compression. The engines done 182000 miles and from service history has had the head off at some point. But its vague as to why the work was done other than the notes saying 'as seemed necessary'.

I've had the cam belt done recently and the crank pulley was slipped on retiming it back up so had a new pulley fitted and timed up correctly.

The engine runs and pulls well.

I just dont know whether to rebuild the engine, get the head and valves tested, or buy a second hand engine and rebuild that.

Anyone have any thoughts on which direction I should go?

________________________________________

Steve
Posted 14th Jun 2020 at 12:47
stan_306gti6 Forum Admin

Location: Kent

Registered: 18 Jan 2004

Posts: 21,768

Status: Offline

Post #2
The fact that you say it sounds more tappy when warm than cold leads me to believe it probably has a couple of bent valves which is the classic signs of a tapper.
They are all seem quieter on cold start. You can normally tell if the tap is camshaft speed.

________________________________________

"Supercharged - 454.1bhp/317.5lb/ft"
Peugeot 306 GTi-6
2000 (X), Moonstone Love
Posted 15th Jun 2020 at 23:30
woody.

Senior User

Location: London

Registered: 18 May 2009

Posts: 799

Status: Offline

Post #3
Do you need use of the car daily?

To know if the valves are bent you'll need someone to have it apart and measure the valves for run out. Can you post a video up of the tapping?

Ultimately, you're not going to know when the engine will let go, if it will at all, unless you rebuild it. And if everything else is working ok I'd think rebuilding would be the best option?

My engine was rebuilt years ago but still 'taps' a tiny bit but that's probably the injectors, and it's on 162,000 miles.
Posted 18th Jun 2020 at 11:09
welshpug!

Capt Pedantic

Location: Bigend, Wales.

Registered: 27 Mar 2007

Posts: 25,838

Status: Offline

Post #4
these engines can suffer heavy bore wear, the only way to rectify that is a set of overaized pistons.

________________________________________

need a part number? get on here - http://public.servicebox.peugeot.com

Bring on the Trumpets.

Posted 18th Jun 2020 at 11:37
Doogle

Newbie

Location: Wirral

Registered: 23 Sep 2018

Posts: 4

Status: Offline

Post #5
Cheers guys. This is a cold start video, I said its quieter on start up that when its warmed up but this particular start up the tapping/ticking was quite loud.

https://youtu.be/0v_EWucpd38

Its had work carried out over the years at a peugeot specialist in cheshire so I may contact them to see what head work was done and why.

I am using the car daily so at the moment cant take it off the road to have the head checked but may be able to in the near future.

See what you think of the video...

________________________________________

Steve
Posted 19th Jun 2020 at 07:58
stan_306gti6 Forum Admin

Location: Kent

Registered: 18 Jan 2004

Posts: 21,768

Status: Offline

Post #6
Nothing wrong with that head, no tapping. Thumbs up

________________________________________

"Supercharged - 454.1bhp/317.5lb/ft"
Peugeot 306 GTi-6
2000 (X), Moonstone Love
Posted 20th Jun 2020 at 17:35
Doogle

Newbie

Location: Wirral

Registered: 23 Sep 2018

Posts: 4

Status: Offline

Post #7
Well, I suppose that's good to here. I wont worry too much about it then. Thumbs up

________________________________________

Steve
Posted 22nd Jun 2020 at 14:46
deeturbo

Regular

Location: Leighton Buzzard

Registered: 22 Feb 2003

Posts: 283

Status: Offline

Post #8
Yeah that sounds really nice.

There does sound like there is a bit of noise from a belt being too tight when you rev it.
Posted 29th Jun 2020 at 16:51

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