perhaps we should have a post of those daft things we do. you've named one ive done in that brief list!
Just noticed that one if my push rod ends is chewed up a bit. No apparent damage to either rocker or follower. Should I change this? Also, anybody got a spare M5 shield screw before I go online.. .the middle tiny one...no I've not list it down the case, I was missing.
You did make it easy. I’ve tried the knocking them in technique and found the O-ring acted as a spring and the tube just bounced, a bit more force and it went in but shaved the O-ring and it leaked. I’ve tried a smear of sealant too, no leaks initially but after a few heat cycles there were. Then I thought about it a bit. My day job years ago was working on high pressure (10,000 psi and more), gas compressors, the internals were held in the outer casing by a head with O-rings. The O-rings were lubricated but no sealant was used and the head was pushed into the case by jacks. Okay, the compressors weighed a few tonnes and the head was lifted in position by a crane but the principle of fitting something in a round hole sealed with O-rings was the same as a pushrod tube. So, I tried a firm and constant pressure, just with my hand, on the end of the tube, initially nothing seemed to happen but I could see the O-ring gradually compress and then the tube slid into position. Maybe 10 or 20 seconds for each tube. It works for me.
Yes, definitely. I have a screw but it will be cheaper for you to get one locally than for me posting it to you.
Cheers Geoff, I was sort of expecting to have to change it, shame I did not see it before. I'll order the screw at the same time. As for the push tubes, I've done one side. I used a conveniently sized wooden handle of a hammer, fitted inside the big end nicely and allowed constant pressure and gentle rotation. I'll finish of the rockers on that side while I order some more parts.
What a difference from those first pics you posted – I hope it doesn’t leak. You should be able to get a hydraulic pushrod without too much trouble; most people change to solid cam/lifters/rods.
I'm finding it difficult to identify and find the right push rod for my hydraulic lifters. I think this is the right part number 071-109-301 but on VWHeritage it comes out as a steel 1600 not hydraulic. I will call them in the morning but is this the right one? @77 Westy, should I change the lifters to solid. I'm planning to keep them but please tell more. Jake R does say he gets problems with them but I don't understand enough to make an informed decision.
You can’t change to solid lifters/rods without changing the cam. 071-109-301 is the correct p/n for hydraulic lifter rods, they’re steel, about 262mm long. Solid lifter rods are aluminium about 271mm long. @davidoft or Jim at Stateside might have a few.
Thanks @davidoft for looking. There is no rush, although I was trying to complete this part before an enforced pause from next Wednesday, it's not vital. I have an operation then that will mean no work for a couple of weeks and no lifting for about 6. Bad timing really, just as lockdown opens up!
M5 screw... I just got bored of trying to find it.. and tapped for an M6.. Sent from my SM-T580 using Tapatalk
I always use bog standard cork rocker cover gaskets held in place with a thin smear of grease. Make sure the sealing face of the cover is true and flat and there needs to be plenty of tension on the bail arms, if they're a bit slack they can be bent for a tighter fit - they really should be pretty difficult to put on, if not they're not tight enough. And if the covers have a VW logo pressed into them put them on with it upside down, they seem to seal better that way for no obvious reason
Good point.... if its not a real pain to get on, the bails are not tight enough. Sent from my SM-T580 using Tapatalk
It is much cheaper to get imperial gauges on eBay because they arent metric. But it does need head scratching at times.
This link helped with the rocker assembly....put here to add to the knowledge base. https://www.thesamba.com/vw/forum/viewtopic.php?t=699078
The pedestal on the right in the first pic is upside down.. chamfer to the top and opening facing down for the retaining spring... Sent from my SM-T580 using Tapatalk
