skunks

i got my engine started some how (probally deflooded it while checking to see if i was getting spark to the spark plug) but now i cant seem to get a good idle. i sprayed starter fluid around and finnaly found the leak, a crack about an inch long right in back of the front bolt of the UIM

Did this happen to anyone else before? Also, the UIM is aluminum right? magnents did no stick to it so i assume it is.


P.S. i did get a small fire from the starter fluid when i sprayed it on the throttle body (weird but it still happened) so those who do try to find a leak via starter fluid, please have a fire extinguisher ready.

mad_7tist

carb cleaner man use carb cleaner. yea its alum

amp

iTrader: (50)

uim is aluminum..

jspecracer7

common problem when engine's are pulled/re-installed with the stock engine pull point. This is the reason I install the engine without the UIM and place a bolt threaded thru one of the tranny bolt holes.

skunks

http://community.webshots.com/album/141113758pAufKm

photos of the crack

RX7Wishing

wow.. time for a new UIM. that would really suck if somehow a peice of that got sucked into the engine while it was running.

turbojeff

iTrader: (30)

Looks like when someone pulled/installed the engine they did not have all the bolts on the UIM. I've never had a problem with a cracked UIM. If you don't tighten all the bolts you'd get a crack exactly like that.

skunks

i dont think anything broke off (well im hoping). i know a guy which can weld super super good. i saw him cut a very thin peice of aluminum in 1/2 and tig it back together damn near perfectly with no burn thru and good penetration! hopefully i can get him to help me to put down a 1-2 inch weld to seal it

Sponge Bob Square Pants

If you get that welded properly you should be fine.

the_glass_man

iTrader: (2)

wth???
Time to make a custom carbon fiber one!