compression

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barry badger
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compression

Post by barry badger » Tue Aug 07, 2018 8:54 pm

I'm trying to fix my smokey tzd turbo, i've just performed a compression test, i did it on a hot engine.
the cylinders were all within 5 psi of each other. the readings were:-
1 piston stroke 170 psi
5 piston strokes 370 psi
and cranking until maximum reading obtained 410 psi
i tried it with a squirt of oil in one of the cylinders but the cylinder started firing.
are these readings ok?
1993 tzd estate, on sorn
1992 tzd estate, on sorn
1992 txd estate, "doom blue" on the road
1991 4x4 estate, on the road

User avatar
barry badger
BXpert
BXpert
Posts: 320
Joined: Sun Feb 12, 2012 10:17 am
Location: north west.
x 5

Re: compression

Post by barry badger » Sun Sep 23, 2018 7:58 pm

I've put this back together and come to the conclusion that there is something badly wrong with the engine, i bought an injector tester and went through 16 injectors to find 4 good ones, although the engine is running better, it's noisy. I think the noise is piston slap or possibly loose combustion chambers. i'm going to mothball this but got a feeling i'll end up breaking it. i'd like to put a 1.9 na in it but then it becomes a modified car with all the difficulties that entails. i've got a good 1.9 na but i've taken the pump and injectors off it for my txd.
1993 tzd estate, on sorn
1992 tzd estate, on sorn
1992 txd estate, "doom blue" on the road
1991 4x4 estate, on the road

rutter123
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Re: compression

Post by rutter123 » Mon Sep 24, 2018 9:52 am

Might be worth checking your turbo, my t/d was becoming quite smokey, not just on boost but all the time blue smoke, I rebuilt the turbo with a new cartridge,bearings etc and problem solved, I have a complete t/d engine with turbo and pump if your interested was running but mileage is quite high around 180k but was running fine beforehand.
90 BX Tzd turbo 294k SORN undergoing major surgery
90 BX Tzd turbo estate 46k awaiting surgery
65 Peugeot Boxer Van the new workhorse
52 Toyota Rav4 180k Bulletproof Jap reliability