TheHaflinger.com

Cheers John, all good then!!!

Got all parts now apart from pistons! The new exhaust valve guide I got needs machining as valve doesn’t fit through, is this normal??? Head needs some machining anyway to refit new valve guide anyway so not a problem but would have thought guide would come already sized for valve!

Just seems too coincidental that engine was running fine before running backwards that it wasn’t the cause of the dramas!

Just waiting on 80.5mm pistons and rings, I think I have everything else sorted!!

Ah, the plot thickens!!! Garry, after you rebuild your engine could you try doing the exact same thing I did, ie get motor running in reverse through the dyna starter, listen to hear for any bangs and loud noises, if you do hear them, just rev the engine harder, and see if your engine goes bang too!...

Cheers Bernard, put offer in on your pistons on eBay, I guess you wanted more, all good, Dale is sourcing for me. How much gear do you have???

Cheers, yes exhaust push rod bent, will check everything else but all looks pretty good???

I adjusted tappers not really knowing what I was doing, just followed the workshop manual, so may have had them a touch tight??? Engine ran pretty sweet until I ran it backwards!! Everything seems pretty sweet with no play, although will get someone a bit more qualified than me to look at it all!!!

My digital vernia reads no more than 80.05, obviously not exact, the reconditioned ran his special tool through them and measured them and said they were worn only a little. Just checking with dale to see if he has 80mm pistons. I am going to replace all valves. Can you put bigger rings in a standar...

I may be getting some of my terminology a bit wrong sorry! Haven’t inspected head too closely yet, that will have to wait a few days!! Either way I need 2 new pistons so thought going up to 80.5mm would be the sensible thing to do??

Reconditioned said bored were in reasonably good condition, although were quite glazed!!i need some machine work done to sort out damaged valve guide port, and thought might as well get next size up piston and rebore head appropriately so I know in good order!! I think I will get all new valves and ...

Spoke to engine reconditioned who seemed very good. Thoughts are to bore heads to 80.5mm or 81mm. Dale only has 81 atm , only need 80.5, not sure if I should wait or just bore to 81?? Engine guy can sort head where valve guide goes, obviously change both pistons, he seemed to think only replace valv...

Pushrods damaged, not conrod sorry!!i have just got Polly and flywheel nuts undone, will take to an engine machinist and see what they have to say, cheers.

Measured bored to be almost spot on 80mm. Around 79.93-80.04

Have both manuals!
The chamber in the head where the valve guide inserts is also damaged, as it is a new valve guide won’t slide in because of the burring. I will show my mechanic mate and see what he reckons.

I’ll tell you what I did on the proviso you don’t call me dumbass!! I’ve had enough of that from my mates! Cut a long story short, flat battery, jump start straight to dynastart, polarities wrong way round, engine fired up and ran backwards, bang crash bang, dead! Have removed engine , stripped off ...

I will get casing back in a week! Saw weld today and looks very professional and neat! Am pretty much leaving it up to him as I have limited knowledge in this area and he has come very highly regarded by other restorers. He said the face had warped a little , most likely after previous weld and may ...

Ha!
Anytime Doug!!!

Hi, thought I would say a quick hello, I live in Dunsborough, WA, and have been restoring my haf over last year and a bit!! Am probably one of the less knowledgeable owners around, but have learnt a fair bit along the way!! Good luck, Adam

Cheers Gary, will pass on all this info to my welder