J&P

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flatboy1950
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1942 sv 74 x 4
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J&P

#1

Post by flatboy1950 » Wed Aug 08, 2018 12:29 pm

A customer brought in his own spares for me to rebuild his 74 U bottom end.
Parts came from J& P cycles... Rods & crank pin & big end bearing.
Crankpin is too long , too much end float for the forked rod
& no end float for the crank in the cases even with way undersized thrust washers.
I supplied a crank pin & then found the replica rods are a rattling fit as the J&P pin is 10 thou. thicker !!!
Also the J&P bearing came with stamped steel cages that have been reported disintegrating in Indian engines.

So , I have a set of genuine used HD rods , honed out to take +.0008" rollers & new s/end bushes installed & resized & used HD cages.
Looks like it is going to work now.

Presumably my customer bought the cheapest parts.
Why are they not made exactly the same , correct size ??
Or are reject parts being sent to Africa ??

Dazed & confused Flatboy !!



1950Panhead
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Re: J&P

#2

Post by 1950Panhead » Wed Aug 08, 2018 1:16 pm

Presumably my customer bought the cheapest parts.
He probably did, you get what you pay for.
Why are they not made exactly the same , correct size ??
J&P cycle sells parts that are foreign made (not usa) labor is cheaper, quality control not so good
Or are reject parts being sent to Africa ??
Yes, and the rest of the world too.

USA, Japan, Germany make good parts, rest of the world you take your chances, some good some bad.
I use Jims crank pins and shafts, nothing else.
Andrews gears or original for tranny, nothing else.
Other parts from J&P, some good, some need repair.

58flh
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Re: J&P

#3

Post by 58flh » Wed Aug 08, 2018 3:02 pm

All JP is good for is fluids and some fasteners. I ordered new guides for my pan and got 3 correct and one for a knuckle head!!!! No biggie I just turned and faced it to specs! That okay for me to do but what about the dude who does not have access to man Ines?.You never know what's in that box until it's opened!.Never buy precision tranny shafts or anything that has to have very precise machining!......been there a few times so I feel for ya......Respectfully Richie

flatboy1950
Posts: 428
Joined: Wed Dec 14, 2011 7:04 am
Bikes: 1948 Pan 61
1942 sv 74 x 4
1948 sv 74 x 1
1943 42U + sidecar with 6800 miles on the clock from new.
Location: South Africa
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Re: J&P

#4

Post by flatboy1950 » Wed Aug 08, 2018 4:09 pm

Well , I used my crank pin & the used rods with .0008" o/s rollers & big end float is spot on.
Put the crank into the cases with two .082" thrust washers & get .005 " end float.
If I cannot find a slightly thinner washer , will grind one to suit.
Much better than before !!!

Slightly less dazed Flatboy.

kitabel
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Re: J&P

#5

Post by kitabel » Wed Aug 08, 2018 11:00 pm

Once they know that you'll buy junk, what reason would there be for them to sell anything else?
This is the great advantage to mail order: the customer is less likely to throw a bomb through your window.

Buddhahoodvatoloco
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Re: J&P

#6

Post by Buddhahoodvatoloco » Thu Aug 09, 2018 11:27 pm

Some companies have been known to purchase "error rates" ig. from manufacturers, then resell. That's how Home D started, not all error rate products are bad, but when it comes to motorcycle parts, I'd steer clear of suppliers as such. /b]

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