Toyota Innova Gas Tank woes

[siopaonatoasted]

All done.
Will post photos later for reference.

Changes made by Toyota to the designs
1. Filler cap. The new filler cap does not have the filter mesh anymore. Also, it is easier to separate from the black housing.
And the filter cap was really designed to let air in easily. I tested it by sucking/blowing on the cap. but it is hard for the air to go out. i think it really designed this way so the evaporated gasoline cant easily get out but it will be easy to let air in.

2. the new tank has a flange mount on where the tubes are connected.

Bumili ka paps ng bagong filler cap?

[jepps137]

Yeah, bought all 3 na eh.

So ang magandang gawin pala, alisin lang yung filter mesh sa lumang filler cap, ok na. tutal inalis naman ng Toyota yung mesh sa bago nilang filler cap.

[siopaonatoasted]

Iba na ba yung itsura ng bago na filler cap?

How much po yung breakdown? Thanks.

[jepps137]

I got everything from Toyorama. Best Sunday magpickup, kasi open din sila 9 to 12nn.
Filler Cap - 1450
Charcoal Canister - 8080
Tank - 14670

Anyway, nung sinubukan ko hipan ang charcoal canister, medyo mas mahirap ng kaunti lang hipan yung luma compared sa bago. So I guess yung main culprit talaga dito is yung filler cap na barado.
*** Remove the filter mesh now ***

Anyway, here are the photos


Old Filler Cap


Filler cap housing removed. Dirty filter mesh shown.


Dirty mesh and Cleaned Mesh


New cap


New Cap has no mesh. Guess the new design does not need it...or they found the cause of the negative pressure.

[CVT]

Even with the dirty mesh bro, I wouldn't think it can hold or push that pressure.....

[jepps137]

Tanks side by side. right one is the new tank. Floater assembly already moved to the new one.



Check out the difference. New tank has flange connection on the ports. Siguro may nasisira din na welds kaya ginawa na lang nilang replaceable.


Leaky tank and a close up. Tank oriented upwards. Upwards is towards the front of the car.

*The strap that holds the tank up is covered with rubber sheet. So the leak was really due to the repeated stress the metal undergoes because of the repeated deflation and inflation of the tank due to the negative pressure. The direction of the hole is even towards inside the tank.

[jepps137]

Even with the dirty mesh bro, I wouldn't think it can hold or push that pressure.....

I tried sucking on the old cap without the filter mesh. mabilis makasipsip ng hangin. I noticed the same feel when sucking on the new cap.

[siopaonatoasted]

Mapag ipunan na nga yang ganyang cap..

Yan nga yung bago, based sa ToyoDIY.

New filler cap. 77300-52030 (08/2008 - )



Old filler cap. 77300-28010 (08/2004 - )

[siopaonatoasted]

Tanks side by side. right one is the new tank. Floater assembly already moved to the new one.



Check out the difference. New tank has flange connection on the ports. Siguro may nasisira din na welds kaya ginawa na lang nilang replaceable.


Leaky tank and a close up. Tank oriented upwards. Upwards is towards the front of the car.

*The strap that holds the tank up is covered with rubber sheet. So the leak was really due to the repeated stress the metal undergoes because of the repeated deflation and inflation of the tank due to the negative pressure. The direction of the hole is even towards inside the tank.

Wala naman nag bago sa design nung tanks, yung mga ports lang ginawa nilang flange. I think the reason behind is mas madali sa manufacturing side ang bolt on compared sa weld.

[kristine123]

I got everything from Toyorama. Best Sunday magpickup, kasi open din sila 9 to 12nn.
Filler Cap - 1450
Charcoal Canister - 8080
Tank - 14670

Filler cap housing removed. Dirty filter mesh shown.

[ Guess the new design does not need it...or they found the cause of the negative pressure.

Natatanggal din po yung plastic kung saan naka lagay ang filter mesh... Ang pangit lang ay medyo maluwang na sya pag ibalik.

kung ma open mo po yun, may dalawang spring sa loob... malaki at maliit...

malaking spring is the positive pressure at ang maliit na spring is the negative pressure ( air going in ), ito ang pinutulan ko yung maliit na spring.

kung di ako nagkamali more than half ang naputol ko... hinila ko lang ang spring para close pa rin sya kahit naputulan. (wag masyado hilain, tamang tama lang para ma close lang sya.)

observe the tank kung mag deform pa rin... bawas kapag same lang.

Ngayon, ang naririnig ko na lang is the positive pressure from the tank...wala ng negative pressure... which is normal. No more deforming sa tank every biyahe.

[kristine123]

Same spot saan nag warp ang tank ko.... buti na lang naagapan ko.

[jepps137]

I think di na kailangan putulin yung spring. just remove the mesh ok na.

Natatanggal din po yung plastic kung saan naka lagay ang filter mesh... Ang pangit lang ay medyo maluwang na sya pag ibalik.

kung ma open mo po yun, may dalawang spring sa loob... malaki at maliit...

malaking spring is the positive pressure at ang maliit na spring is the negative pressure ( air going in ), ito ang pinutulan ko yung maliit na spring.

kung di ako nagkamali more than half ang naputol ko... hinila ko lang ang spring para close pa rin sya kahit naputulan. (wag masyado hilain, tamang tama lang para ma close lang sya.)

observe the tank kung mag deform pa rin... bawas kapag same lang.

Ngayon, ang naririnig ko na lang is the positive pressure from the tank...wala ng negative pressure... which is normal. No more deforming sa tank every biyahe.

[bakaldos]

pwede po ba mag request ng short video clip na uploaded sa youtube kung pano dis-assembly yung fuel tank cap?
medyo hindi po kasi ako skilled pa sa DIY. advance thanks po...

[Mile2]

I think di na kailangan putulin yung spring. just remove the mesh ok na.

+1, this is the workaround solution I got from TMBC while I'm awaiting the replacement parts (tank, charcoal canister and filler cap).

[Mile2]

pwede po ba mag request ng short video clip na uploaded sa youtube kung pano dis-assembly yung fuel tank cap?
medyo hindi po kasi ako skilled pa sa DIY. advance thanks po...

Medyo mahirap, but doable sa mga DIY'ers, you just need patience and 2 jewelers screw drivers to pry open and skewed the plastic sides.

[cast_no_shadow]

Medyo mahirap, but doable sa mga DIY'ers, you just need patience and 2 jewelers screw drivers to pry open and skewed the plastic sides.

Man i tried observing the filler cap last weekend.

I don't know where and how to start dismantling, i gave up.

[Mile2]

I experienced fuel leak 2 times on same spot

beneath the front metal strap, same spot.

[Mile2]

Man i tried observing the filler cap last weekend.

I don't know where and how to start dismantling, i gave up.

You just need to figure out separating the white assembly from the black housing/cover, after you separate the white assembly it would be easy to access the inner parts like filter mess.

[cast_no_shadow]

You just need to figure out separating the white assembly from the black housing/cover, after you separate the white assembly it would be easy to access the inner parts like filter mess.

Eto ang hindi ko alam pano gagawin.

[Mile2]

gamit ko dalawang jeweler screw driver, naka snap lang (no screws) yun white assembly sa black cover/cap