What Make Are These?

[Paul_13 212 1 Cars]

Recently after blowing up 2 engines and all doom and gloom, I came across these and a rebuilt head.

 

 

Now it doesn't sound too lairy on idle, but pulls well up to 5k (didn't go any higher as I don't know wether the engine has been run in or not and it was a short drive)

 

Has anybody seen these before?

 

I'm in Leeds at the moment so can't whip the rocker cover off.

 

 

Thanks in advance

Paul

[Matt Holley 11]

They are standard on some gti6 engines, Ive got them on mine.

[Paul_13 212 1 Cars]

Interesting, I've worked on 8+ gti6 heads and have never came across these.

 

I did think they might be standard because of the yellow marker.

 

Another thing that threw me off was the piper/dayco (cant remember which) belt which was new and the rebuilt head.

 

Seems to me like it's snapped a belt in the past

[welshpug 1,737]

yep, standard earlier type, the later pulley is a single bolt affair but still adjustable.

 

Dayco belt is standard peugeot but many motorfactors sell them, usually in INA kits.

[Paul_13 212 1 Cars]

the later pulley is a single bolt affair but still adjustable.

 

Oops I owe Ryan an apology, he's not a liar

 

Cheers guys

[Miles 331 1 Cars]

They are much easier to adjust than the crappy later design, But the type shown have been known to crack on some engines

[Matt Holley 11]

They are much easier to adjust than the crappy later design, But the type shown have been known to crack on some engines

 

I was going to post about that but the ones I know of cracking were being used on some lairy cams, solid lifter and up to I think 9k rpm.

[Alastairh 47]

Do you blame them?

 

Al

[Matt Holley 11]

Do you blame them?

 

Al

 

No, that was my point, I didn't bring it up before as I'm fairly sure Paul won't be using them under such extreme conditions!

 

The race engine in question had its rev limit reduced until better pulleys were supplied.

[Miles 331 1 Cars]

Mine are fine at 269k