Hi guys - Friends injector pump (1KZTE Surf) is losing fuel from the speed sensor on top of the i/p.
I have a three...no... four part question.
Can the speed sensor o-ring be replaced without removing the entire i/p?
Where to purchase a new o-ring/cover plate gasket?
Any tips to avoid destroying the speed sensor? I have a 32mm deep socket
Also Do these engines self bleed?
Many shanks
1KZTE Speed Sensor O-Ring Replacement
Re: 1KZTE Speed Sensor O-Ring Replacement
I got the answer to my questions from Diesel & Turbo in Petone Wellington.
I got official proper Denso seals,
Denso Parts are K146600-4400 (Top Plate Cover gasket), Viton O-Ring dimensions 20.8 x 2.4
Older experienced diesel technician showed me the prescribed method to prevent damaging the sensor with a pump he had on the bench.
Prescribed method is to give the 32mm nut a gentle punch, gently hold a 10mm wrench on the white plastic connecter, then gently release the 32mm nut with a ring spanner.
I got official proper Denso seals,
Denso Parts are K146600-4400 (Top Plate Cover gasket), Viton O-Ring dimensions 20.8 x 2.4
Older experienced diesel technician showed me the prescribed method to prevent damaging the sensor with a pump he had on the bench.
Prescribed method is to give the 32mm nut a gentle punch, gently hold a 10mm wrench on the white plastic connecter, then gently release the 32mm nut with a ring spanner.
Re: 1KZTE Speed Sensor O-Ring Replacement
lax2wlg wrote:I got the answer to my questions from Diesel & Turbo in Petone Wellington.
I got official proper Denso seals,
Denso Parts are K146600-4400 (Top Plate Cover gasket), Viton O-Ring dimensions 20.8 x 2.4
Older experienced diesel technician showed me the prescribed method to prevent damaging the sensor with a pump he had on the bench.
Prescribed method is to give the 32mm nut a gentle punch, gently hold a 10mm wrench on the white plastic connecter, then gently release the 32mm nut with a ring spanner.
Thanks good info. Did you get the seal through toyota or diesel & turbo? What was the cost?
IFS all the way...go the mark 1 Pajero!
Re: 1KZTE Speed Sensor O-Ring Replacement
Purchased them from Diesel and Turbo Petone. $6.04 for the two seals.
Photo from toyotasurf.asn.au
Also no bleeding was needed

Photo from toyotasurf.asn.au
Also no bleeding was needed

Re: 1KZTE Speed Sensor O-Ring Replacement
Awesome...such a common problem on the 1kzs great to have a simple and cheap solution 

IFS all the way...go the mark 1 Pajero!