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TECHNICAL MOTOBRICK WRENCHING In Remembrance of Inge K. => The Motobrick Workshop => Topic started by: jay1622 on December 19, 2017, 08:11:21 AM

Title: Engine Rebuild Averted
Post by: jay1622 on December 19, 2017, 08:11:21 AM

What’s up my Motobrick Bretheren! I’m posting this up to tell a scary/odd story about my rebuild that had me speechless. Recently, I developed an awful clanking noise on the rebuild. The change in tempo of the noise was spot-on with engine speed, and everything (stethoscope, block of wood to the ear/engine, ear to engine) was pointing to the right side of the block. The pros told me I had either thrown a crankshaft connecting rod cap, or developed a real bad case of timing chain slap. I couldn’t believe my eyes when I found the culprit... The fuel pump pressure line slapping the filler cap moisture drain pipe. Harmonics? Either way, I dodged an engine rebuild. A couple of zip-ties and we’re back in business. Note: These are the pressure hoses being distributed with many of the new aftermarket fuel pump kits.

https://youtu.be/tLbKVt3nGiM (https://youtu.be/tLbKVt3nGiM)
Title: Re: Engine Rebuild Averted
Post by: The Mighty Gryphon on December 19, 2017, 09:23:15 AM
Wow, I have  a set of those nylon hoses from EuroMotoElectrics, but haven't used them yet.

Inside of your tank looks pretty psychedelic.
Title: Re: Engine Rebuild Averted
Post by: jay1622 on December 19, 2017, 09:33:17 AM
Wow, I have  a set of those nylon hoses from EuroMotoElectrics, but haven't used them yet.

Inside of your tank looks pretty psychedelic.


EME is who supplied my fuel pump. (Hands down, some of the best customer service I’ve ever experienced), and the looks are complements of the Redkote. I had those pinholes on both sides of the bottom of the tank. Some said weld them. Some said coat the tank. I did both.
Title: Re: Engine Rebuild Averted
Post by: Chaos on December 19, 2017, 10:21:59 AM
Sounds like you dodged a bullet :clap: Rarely it seems anyone ever rebuilds an enjin on tranny on these old K's, the drivetrain seems to outlive the rest of the bike and there are plenty of cheap good units on ebay and such. 
Title: Re: Engine Rebuild Averted
Post by: Laitch on December 19, 2017, 04:53:16 PM
Inside of your tank looks pretty psychedelic.
Like listening to a Ginger Baker solo at The Fillmore. :giggles
Title: Re: Engine Rebuild Averted
Post by: The Mighty Gryphon on December 20, 2017, 12:34:48 AM
Like listening to a Ginger Baker solo at The Fillmore. :giggles

Yikes!!!  I'm thinking psychedelic in a good way...