Shadowhope

I was wondering how i know when i need to replace my engine. What signs will i get from my older one to indicate a replacement is needed?
Also how often should i do this?

neobart

iTrader: (4)

Loss of bottom, inability to idle right and flameouts when at running temp.

jwm2

iTrader: (5)

New engine for every gallon of fuel you consume.

hdcruzer

iTrader: (12)

This is a joke right........ A good motor will last 6 to 8 gallons. Then your option to buy a new one or re-pinch and rebuild the one you have.

houston

iTrader: (96)

runs great until it warms up

neobart is spot on

Shadowhope

i noticed the repinch and rebuild. could you explain?

jmaxey51

iTrader: (7)

if this isnt a joke thats alot of money wasted, or your arent tuning right

NitroXray80809

iTrader: (24)

repinch is when the sleeve is resized with a special tool that allows the piston to have compression again to the sleeve. After the engine gets tired people will normally repinch it and it runs like new again.

NitroXray80809

iTrader: (24)

Yea if its a TRX 3.3 But if not and ur serious you must buy used, have tunning way off, and dont break in the engine. Most engine dont even pass break in until after a gallon how do u figure they only last that long, i know a guy with 12+ gallons on a o.s. speed and a normal race engine will last around 6 to 9 gallons.

Shadowhope

so its basically like a new engine?

cbengsch82

Yep. It should run just like new. I am pretty sure you would still have to break it in again. And if you didn't want to get it pinched for some reason, there is always the option of replacing just the piston and sleeve. It is still ALOT less expensive than getting a whole new motor. I replaced the piston and sleeve in mine at the beginning of this year.

NitroXray80809

iTrader: (24)

yeah just like new again, I hear you dont have to go into breakin as far as you do with it new new but I hear you just need to do a cuple tanks like break in but not as much.

jmaxey51

iTrader: (7)

depends on what kind of pinch you get, a light or medium pinch will only be 2-4 tanks like break in but a tight pinch will be a full blown break in, but 99% of people dont do a tight pinch bc it is extremely rough on the rod and crank. i had an engine pinched and IMO its better than new

NitroXray80809

iTrader: (24)

yeah makes sence i wouldnt want to put a used ron under the pressure of a new sleeve because it wont last, im thinking of gettin my grp a pinch sometime soon u know any guys u really liked?

jmaxey51

iTrader: (7)

Alan Burton he does good work and you can get new bearing and all from him pretty cheap, and he cleans the engine alot too, its like new again. he is on here somewhere, just PM him and he will give you all the info you need.