Unusual Squeal On Engine Start Up

[Marko R1]

hi guys,

when i start my r32gtr - only on start up for about 2 sec i get this high pitch squeal which to me sounds like a fan belt, so i sprayed a bit of silicone spray...its not this.

what could it be?

if my explanation is not clear - i can record a short clip & post it here

[GTRsean]

Record clip

Is it a squealy starter motor?

[Marko R1]

I doubt its the starter motor as the noise starts after I crank the engine, not during engine cranking.

[DVS JEZ]

Some starter motors can squeel when the armature pulls in and the gear is slowIng down.

If u have the time and effort pull the belts off then start it up. That will eliminate them from the equation

[GoHard]

I had a squeeling start up from power steering fluid leaking onto power steering belt. Check all aux belts.

[Marko R1]

OK. I'll visually check the aux belts and then remove them via process of elimination

[t_revz]

The drive gear in the starter slips as the engine speed increases beyond cranking speed and it's not uncommon for them to squeal. Especially when they are full of clutch dust. Holding the key in start position for a second longer(ie allowing engine to reach idle before releasing key) should lengthen the noise if it's the cause.

[scotty nm35]

so i sprayed a bit of silicone spray...its not this.

I wouldn't have used Silicone spray, you will never get the sh*t off the pulleys. The only thing worse than that would be Belt grip (makes me shudder just saying the name)

[NoFigJamHere]

Just had a similar issue with my 33 GTR, Shouldn't really sound like a belt thou. More like a whine than a squeel. Mine was the starter not dis-engagaing after starting for a second or 2!! Very embarrassing in public places.. All i did was removed starter bolts and pushed starter back enough to get access to the gear and put quite a bit of graphite powder on and behind the gear. After about 5-10 start ups all gone ;-) Dont know what caused it to be honest.

[R.3.2.G.T.R]

+1 for starter motor, re-greased mine, after a few starts all good

[ARTZ]

regreased my starter and replaced all belts made no difference

might try graphite powder cause wheel bearing grease probably isnt ideal

[t_revz]

regreased my starter and replaced all belts made no difference

might try graphite powder cause wheel bearing grease probably isnt ideal

Starter bushes are oiled, not greased.

Rookie lol

[ARTZ]

lol...I used what I had laying around....but thats most probably my problem then

..would some Four Seasons lubricant do the job better next time you think??

[t_revz]

Had previously thought about making a DIY to strip and re-oil but most out there will likely require brushes/bushes etc and didn't want to go too in depth. Removed/repaired an Sau members starter from 33gtr and there was a full handfull of clutch material in the housing and drive gear was bound up. Heaps of contact cleaner got it out. But greasing etc without disassembly would never have fixed the problem.

So that's a negative on four seasons lube. Save it for your next birthday:)

If you use your lube

[ARTZ]

yeah i did a full strip on it...didnt look to be in too bad condition..there was some clutch dust though...

I used grease but only on the cogs I think (still a mistake i know) I used something else on the shafts, was lithium or PFTE grease from a spray can from memory...

So whats the correct procedure then and i will do it again...

[t_revz]

Fill both the bushes with oil then press your finger into them to force it through as they are porous. Grease on reduction gears which won't be where the noise is from.

Drive gear should lock up one way and free the other. Contact cleaner through the gap to get clutch dust out until its smooth. Touch of grease on worm drive under drive gear. Also touch of grease on solenoid pivot points. Noise will almost certainly be from drive gear if it's from the starter. If its still rough after cleaner get another for 30 or so

[ARTZ]

i will get around to that again oneday..in the meantime I will just keep telling people its my supercharger belt and it completely normal

[agentx]

Aircon pulley? That was the issue with mine - Noise was constant though, I ended up thinking its the turbo and changing the bloody turbo before identifying the problem

[Marko R1]

i still haven't gotten around to inspecting the noise i have BUT i did notice is that the noise is there when the engine is cold...once warm, the noise disappears which leads me to believe it is a noisy fan belt (or my supercharger belt as ARTZ commented above, haha)

[t_revz]

i still haven't gotten around to inspecting the noise i have BUT i did notice is that the noise is there when the engine is cold...once warm, the noise disappears which leads me to believe it is a noisy fan belt (or my supercharger belt as ARTZ commented above, haha)

Doubt the starter would be temp sensitive. Better check it out before something seizes.