Recently we have been making good progress on the Peugeot 401 including completing the timing. The rear main bearing housing has been bolted and and marked, a gasket was made for the oil return screw cover; using engineering blue to leave the outline on the gasket paper to allow an exact cutting line.
Timing
Once this was fitted the bell housing and flywheel could be bolted on. The Tipex is used as a quick identifier to highlight that bolts/nuts have been torqued up.
When preparing to set the cam timing for an engine of this age, we often don't trust timing marks as so many have been added over the years, and parts have been altered. Therefore first principles are used, hence the timing disc shown on the flywheel. This allows us to set all the timing confidently, and precisely.
Exhaust/Intake Prep
As this engine is not being built for concourse, we aim to keep the gloss paint to a minimum so that it blends in when fitted back to the lightly refreshed car. This is demonstrated on the exhaust/inlet manifold and corresponding fittings. The manifold and fittings were wire brushed and cleaned to remove all loose rust and oil, then were treated with high temperature paste, which leaves a very nice OEM sheen, not glossy but certainly much tidier than rust!
Oil Filter and Water Jacket Covers
This Peugeot is fitted with a very nice oil filter assembly, consisting of a external housing with a very styled metal mesh filter. That certainly is Art In Engineering! additionally the oil pressure relief valve is built into this assembly. This required a gentle tap out along with some heat, and then a light oil stone on some burring and rust spots.
The housing was repeatedly and thoroughly washed through to remove all the years of oil build up and sediment! Many years! Eventually it began coming clean and was ready for paint.
The cap flats were dressed to recover them as best as possible, aswell as the housing bolt faces being oil stoned ready for refitting.
J.
No comments:
Post a Comment