Toyspeed.org.nz Message Board

by **SKDABL** » Thu Sep 16, 2004 6:05 pm

Hey
I've got a 1989 4door corolla and when i get to 2000rpm it plays around a bit untill 2600rpm then goes back to normal.

Also
After i rev it up to 4000rpm and let the gas off once it hit idle revs there is a little rattle that comes from around the bottom on the engine bay, goes away after 2 seconds of rattle

Anyone got any ideas why it does this?
Engine - 4A-F
Carby 1.6l gl

Thanks

by **GTCRSHR** » Thu Sep 16, 2004 6:07 pm

cuoldbe the engine

Website · by **Bling** » Thu Sep 16, 2004 6:43 pm

GTCRSHR wrote:cuoldbe the engine

this guys on to it!!!!

by **Silent Knight** » Thu Sep 16, 2004 7:23 pm

if it's a rattle at a certain RPM range it could be an engine mount that's semi or fully $&#$%

hve you tried standing in front of the motor and revving it up to see how far it tilts over?

by **CozmoNz** » Thu Sep 16, 2004 8:03 pm

Silent Knight wrote:if it's a rattle at a certain RPM range it could be an engine mount that's semi or fully f****d

hve you tried standing in front of the motor and revving it up to see how far it tilts over?

or better yet get a friend to rev it, makes it easier

by **Silent Knight** » Thu Sep 16, 2004 8:05 pm

no really...you can jst pull the cable to rev it up makes absolute no difference

by **SKDABL** » Thu Sep 16, 2004 8:08 pm

Silent Knight wrote:if it's a rattle at a certain RPM range it could be an engine mount that's semi or fully f****d

hve you tried standing in front of the motor and revving it up to see how far it tilts over?

Yah the engine mooves like 2cm
What should I do about it?
It only rattles once it gets back down to idle

by **Silent Knight** » Thu Sep 16, 2004 8:43 pm

hve you checked all ur engine mounts for cracks etc?

mbe a loose plug or piece of metal or sumfin slappin round in the engine bay?

by **YeMs** » Thu Sep 16, 2004 9:07 pm

um i dont mean to be hugely stupidly insanely off topic and i really hope i dont get shot for saying sumthing so lame. but surely u have checked the oil level?? infact wen was the car last serviced?

by **SKDABL** » Thu Sep 16, 2004 9:10 pm

Just had a service 2weeks age, brand new wof (i thought wofs pick up on this stuff?) yup, oil is between full and low so i guess its alright.

I'll check the mounts tomorrow cus its pretty dark, what should i be looking for, rust? cracks?

I might do a inspection of the whole underside also.

Thanks heaps guys

by **SKDABL** » Thu Sep 16, 2004 10:20 pm

Could the engine fall out as i drive along?
Is it something that requires immediate attension?
Thanks

AW11 Track Toy · by **Caveman** » Thu Sep 16, 2004 10:21 pm

SKDABL wrote:Yah the engine mooves like 2cm
What should I do about it?
It only rattles once it gets back down to idle

2cm isnt far for an engine to move.

Maybe you have a foreign object in your sump. Sounds far fetched but its an idea :idea:

by **CAMB01** » Thu Sep 16, 2004 10:57 pm

Could be the inspection plate between the block and gearox, mine is loose on my 4AGE, it rattles at certain RPM's but can't fall out due to an engine mount being in the way.

by **low_rider** » Thu Sep 16, 2004 11:27 pm

SKDABL wrote:Could the engine fall out as i drive along?

by **Silent Knight** » Thu Sep 16, 2004 11:31 pm

SKDABL wrote:Could the engine fall out as i drive along?

NO....unless all of ur mounts and ur x-members degrade enough to fall to bits. (Higly unlikely)

by **SKDABL** » Fri Sep 17, 2004 5:31 pm

low_rider wrote:
SKDABL wrote:Could the engine fall out as i drive along?

Just making sure lol
I checked underthe bay for the rattle and i cant seem to find where its comming from, all mounts look fine, rattles not comming from mounts, its definatly under the engine, near the extractors and the beginning of the exhuast.

Should I get this checked out? or isn't it that biga deal?
Thanks.
Tim

by **low_rider** » Fri Sep 17, 2004 6:13 pm

SKDABL wrote:
low_rider wrote:
SKDABL wrote:Could the engine fall out as i drive along?

Just making sure lol
I checked underthe bay for the rattle and i cant seem to find where its comming from, all mounts look fine, rattles not comming from mounts, its definatly under the engine, near the extractors and the beginning of the exhuast.

Should I get this checked out? or isn't it that biga deal?
Thanks.
Tim

lol yeah all good bro we all had to start learning somewhere its just that i couldnt help but laugh my ass of when i heard that

by **10k 20v** » Fri Sep 17, 2004 7:06 pm

i'd be checking the exhuast shrouds around the manifold or front pipe.
a broken engine mount a corolla isn't a common thing and if one ever does go it will be the rear
as for the hesitation there are some valves in the intake maifold and if the diaphram for the acuators split can cause a surge. same with the vaccum advance on the dist.

by **SKDABL** » Fri Sep 17, 2004 8:13 pm

10k 20v wrote:as for the hesitation there are some valves in the intake maifold and if the diaphram for the acuators split can cause a surge. same with the vaccum advance on the dist.

Well what do I do about tihs? How much would it cost to fix? thanks.

by **SKDABL** » Sat Sep 18, 2004 10:08 am

Is it a serious problem?
Will it need fixing or will it be fine the way it is?

Thanks

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