2.0L engine rebuild?
I own a 1954 86" with the 2.0l siamese bore engine. The one thing I have not touched in the 10 years I have been sporadically restoring the vehicle is the engine & gearbox. The vehicle was finally road registered a couple of months ago. Whilst some road running has dramatically improved its demeanour, there are a few ongoing concerns that I feel ready to tackle now. Symptoms are:
- It bungs up spark plugs in short time. I am running hotter spark plugs, but by 20 hours of running time with new plugs, a miss at high revs and rough idle will develop which a set of plugs will remove (until next time).
- Dry compression is 100-105 psi across all 4 cylinders.
- It blows oil mist out of the breather on the tappet cover like a steam train!
- There is an occasional internal rattle on startup. Will only last for a fraction of a second and I presume may be related to lack of oil pressure at cold starting.
The oil pressure seems ok and sits fairly stable at 30-40 psi. Tappet clearances have been checked and are (were) ok.
I am debating on whether to give it to someone to rebuild or to dismantle myself and inspect and replace required parts as necessary, in consultation with the good folk at AULRO and the workshop manual. I don't particularly want to soak up $8-10K of "spending money" on a rebuild if I can avoid it.
What would be the likely areas to target with a "light" rebuild?
- Piston Rings?
- Valve seats? Can hardened valves & seats be installed for ULP?
- Likelihood of having to go to a rebore and/or bigger pistons etc?
- Would you dismantle & inspect the bottom end whilst it was out of the vehicle?
Any other advice at this time?
Thanks
Chris
Chris
2014 D4 TDV6
1954 86"
1963 2A Forward Control (getting the full treatment, Isuzu 4JH1, MYY5T, LT230, Toyota Axles, extended cab ++)
1980 Stage 1 v8 (gone)
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