having been rebuilding my CU 2.0L ive come to reinstall the pushrods and upon rolling them on glass (my hob ! ) they are not quite straight a little bit of a curve .
what sort of tolerance is there for pushrods its a small amount of a bow
thank you in advance to any thoughts
Aircooled 2.0cu 1982 Danbury Autoroof , not so Auto anymore
It is only my opinion but.... They are supposed to be straight. They will only get worse and you will be worrying about them every time you dive the van. Change them now, you know it makes sense.
I don't know where I am, but I'm having a lovely time!
Nothing worse than driving around knowing you have a time bomb ticking. I remember an old friend who lost the end of his dipstick in his DG ... the thing eventually surfaced half way round the M25 on a Sunday afternoon.
Ian
The Hulley's Bus 1989 2.1DJ Trampspotter LPG courtesy of Steve @ Gasure
I had a vehicle years ago with a bent pushrod, this had valve clearances and it would cycle between noisy and quiet as the pushrod got stuck in one position, a good thrash often move it round and it was quite again.
What was happening was the length wasn't the same depending upon the rotation of it.
With Hydraulic tappets it may not be so noisy but it could be holding your valves open as it moves around and the tappets take time to pump up and down so I'd say it may cause valves to burn out long term.
If you can see it's bent change it.
1988 DG WBX LPG Tin Top
1989 DJ digijet WBX Holdsworth Villa 3 Pop Top itchylinks
Nothing worse than driving around knowing you have a time bomb ticking. I remember an old friend who lost the end of his dipstick in his DG ... the thing eventually surfaced half way round the M25 on a Sunday afternoon.
Ian
It ended up where it shouldn't? Thats quite an achievement.
The rod where youcan see light on both sides is down on diameter at that point ie (waisted) . To check for straightness take 3 at a time and simply hold together 2 at time but swapping over between the 3 to check for a curve ie light coming through. The glass won't be very flat either. Try in a electric drill just gripping the end, will give you a rough idea without more specialist tackle.