Messages

Wow, I wonder what caused that.. excessive thermal expansion of the cast iron sleeve? I've never seen that happen before. One way to repair it would be to have the sleeve removed, then the cylinder tungsten arc welded, rebored, then relined.
 But the GOOD news is you could probably run it like that with no ill effect, provided the cast iron sleeve is not cracked too, and is not loose in the cylinder, i.e., can't rotate. It will not move up and down since the head will keep it in place. Good luck!
Dave H.

Penton117,
 The epoxy becomes soft if you heat it with a hair drier, allowing you to pick at it and remove it. BUT be careful, because you can damage the fine wires underneath it if you are careless. Good luck!
Dave H.
Penton#414

I am not a professional mechanic.  The following information is from my own experience, so YMMV. The special bearing puller tool is MUCH preferred, but I did not have access to one, so I did it this way: with the crankshaft WELL supported by oak blocks, I used a cold chisel ground to a narrow taper, and lightly tapped it with a hammer into the small gap between the bearing race and crank counter ballance all around, which slowly became wider as the race moved. Note that this will probably damage any shims you will find there, but they will have to be replaced anyway, when the new bearings are measured and spacing recalculated. Obviously you would not use this method if you were not going to replace the bearing races. BE CAREFUL to not distort the crank shaft alignment. Runout should be rechcked and adjusted after assembly of the new races. I froze the crankshaft with dry ice and the new races slipped right on. Good luck. YMMV so use this information at your own risk...
Dave H.

Steve, hey, great to hear someone else from the Eastern Seaboard! I didn't know Hildebrand moved. I moved around a bit after I bought my Penton. I raced at Middleborough Mass., Leeds Junction,Maine, and some place in NY I can't remember the name of that had a wicked jump with a lot of whoops after it...,
I worked at Boston Cycles for a while. One of my brothers, who also raced Penton's, worked at King's Rook Cycles...geez, I'm gettin' nostalgic.
Thank you for the reply to my 'self intro'...
 Let's talk Pentons!
Dave Hussey, Seattle Wa.

dave h.

quote:
Dave, after Charlie moved his shop to Beverly I used to go hang around there drooling over the 125 six days, I couldnt afford one then so I had to ride my Suzuki tc-90. I got my first pair of hi-point boots there, I believe they were $60.00. Give me a shout if you want to talk Pentons. Stevequote]
Please allow me to introduce myself, I'm a new POG member, and I bought my first Penton brand spankin' new from Charlie Hildebrand's Penton-Maico dealership in Gloucester Massachusetts, in 1970. Three days out of the box I crashed it, bending both 35mm fork tubes into a "U". I still have the engine...it's in my one and only known to exist Penton-Fichtel-Sachs 125cc Road Racer. The rest of the original frame, steel tank, wheels, etc. suffered from hard MotoX racing, er, that is, crashing.
 I also own a "next generation" 125cc Six Day which I gave the honor of it's maiden voyage after a frame-up rebuild (sort-of-a-restoration) to my son. This was also his maiden voyage piloting a motorcycle, and he didn't fall down, or break anything...whew. I recommend to every parent...get your kids involved in dirt riding...they will love you for it!
Dave H.

[/quote]

dave h.

I had a leaky carburetor, and traced it to a worn float needle, on the morning of a trail ride! What to do, oh WHAT to do....AHa! Bing carb=BMW...turns out the R75 uses the identical needle. $6.00 and the day was saved!
Geez, if this had been a '72 Japanese bike, forget finding a float needle for it.

Does anyone know somone that will rebuild a pair of old Curnutt shocks? My '73 125cc Six Day has a tired pair on it. They are nice looking units and I don't want to get rid of them. They look like they are rebuildable, with the right spanner to remove the cap. They are 1.5 inch diameter, and when extended, nearly 14 inches from eye to eye.
Thanks in advance.
Dave H. #414

Please allow me to introduce myself, I'm a new POG member, and I bought my first Penton brand spankin' new from Charlie Hildebrand's Penton-Maico dealership in Gloucester Massachusetts, in 1970. Three days out of the box I crashed it, bending both 35mm fork tubes into a "U". I still have the engine...it's in my one and only known to exist Penton-Fichtel-Sachs 125cc Road Racer. The rest of the original frame, steel tank, wheels, etc. suffered from hard MotoX racing, er, that is, crashing.
 I also own a "next generation" 125cc Six Day which I gave the honor of it's maiden voyage after a frame-up rebuild (sort-of-a-restoration) to my son. This was also his maiden voyage piloting a motorcycle, and he didn't fall down, or break anything...whew. I recommend to every parent...get your kids involved in dirt riding...they will love you for it!
Dave H.