Fuel Pump on 1HZ Motor

Give JC Diesel at Narellan a call. Very good workmanship and pricing very fair.

There is a place in Victoria street here in Penrith just up the road from me. Does fuel pumps and nothing else and apparantly very very good reputation. I have never used him personally but have spoke to him on a couple of occasions and seems very helpful gentleman. Will try and get the name for you and let you know. Regards Steve M

bellie -

I had the exact same problem with my 1HZ. Fuel was leaking from the top section but it was impossible to locate exactly where from. After tightening the connections and the allen head bolts on the top plate to no avail the leak gradually got worse to the point where something had to be done. Other than the leak, the engine ran quite well with no excess smoke and plenty of power (for a 1HZ).

I spoke to a few different so called "Diesel Specialists" and they all told me the pump was stuffed and would need to be removed and rebuilt (at a cost of well over $1000). I found this hard to believe as the engine ran fine. Nobody would work on the pump without removing it first, at more cost. One guy told me he could "re-seal" the pump (internally and externally) for about $800. I didn't see how that would be necessary.

After sourcing a copy of the exploded view of the pump from the Toyota engine manual I suspected the top cover gasket and/or the accelerator shaft o-ring (located in the top cover).

I bought a kit that contained the the gasket and the o-ring and two new copper washers for the banjo bolt on the fuel line on top of the pump from MTQ Diesel.

www.mtqes.com.au

I removed the top cover off the pump without removing the pump and replaced the seals in about 20 minutes and it hasn't leaked a drop since. I didn't need any special tools and it cost me $8. Over 10,000 km later it hasn't missed a beat.

Those pumps should last allot more than 325,000 km.

If you've got the slightest mechanical ability and are willing to have a crack at it, post your email and I'll give any details you'll need. It could save you ALOT of cash.

-Matt.

Cobber, when it all comes appart, they will find worn bits that need replacing....should cost about 2k to repair i have found Gemini diesel st george to be good. Also Cooma Diesel in Canberra is a good service centre....get some quotes, ring round...but you will be needing to replace things inside with that many kms...