Engine Trouble?

[-Johnno-]

gday all,

relatively new to the turbo scene, but bought a skyline a few months back after owning many a v8 over the years. it is relatively modified, but still runs on a stock turbo and all general maintanence has been carried out by me.

a few days ago i noticed my heat level was rapidly rising so i plled to the nearest servo and filled my close-to-depleted radiator with much needed water. i took it home and spied where it was leaking from underneath the car (th pulley (?) that holds the radiator fan onto the actual car) and thought i'd just you more experienced guys what you think it is.

i searched for a while, and the general consensus seems to be the water pump, or more precisely it's seal. it had its timing belt changed at 120xxx km's, so i dont think it needs a new one (now 147xxx km)

pic included to where it is leaking from.

cheers,

johnno

bonus question: stock turbos general spool up at 2500/3000 revs and should redline at/a little past 7000rpm, would i be correct? for some reason, mine limits at 5000rpm, therefore only giving me an effecive 2000rpm to play with. Would it be because of my Wolf 3d ecu and it's tune??

[Duncan]

yeah water pump seal for sure. its normally a good idea to do water pump at the same time as timing belt for this reason. well done spotting the leaks its pretty tight down there

not sure what you mean about the turbs/redline, they might run out of puff over 7000 (power starts falling) but they will still pull strongly at 5000. sounds like a problem with your tune (not the computer itself, a wolf is fine)

[-Johnno-]

duncan, thanks for your help man, greatly appreciated. obviously go to Nissan spare parts and buy a new, genuine one?

i gathered it was the tune. even a stadard one -should- be able to beat a unmodified '92 holden astra....my mate (who drives so said vehicle) keeps up with mine all the way up the speedo, so i will get that sorted as well.

all in all a great, smooth car though

johnno

[Duncan]

well thats up to you....they are about $300 from nissan (standard or n1). n1 isn't a good choice unless it does a lot of track work (flows less water so the motor will run hotter at low revs).

other option is an rb30 water pump they are about $30-50 aftermarket and bolt straight on. also flows a little less than stock water pump but we have used them on a couple of motors over the years without problems.