Search found 877 matches

by Clifford Pope
Wed Oct 28, 2020 6:57 pm
Forum: Engine
Topic: HELP! Where has it gone? A comedy.
Replies: 4
Views: 87

Re: HELP! Where has it gone? A comedy.

Can you push something like a wire coathanger down the hole to confirm where it goes and how far?
by Clifford Pope
Mon Oct 19, 2020 6:34 am
Forum: Modifications
Topic: Tow bars
Replies: 10
Views: 1325

Re: Tow bars

I fitted one to an early Mark 1 once. Three observations: 1) Test the angle iron against to bodywork carefully, and adjust the curvature if necessary to ensure that there is a clear gap all the way across. 2) Fitting the angle iron behind the bumper inevitably moves the whole bumper assembly backwar...
by Clifford Pope
Fri Oct 02, 2020 8:33 am
Forum: Engine
Topic: Oil pressure switch thread
Replies: 10
Views: 922

Re: Oil pressure switch thread

Allan key socket in an impact driver?
by Clifford Pope
Tue Sep 22, 2020 8:04 am
Forum: Engine
Topic: Auxiliary oil feed to rockers
Replies: 12
Views: 820

Re: Auxiliary oil feed to rockers

That's my point - it limits the upper pressure, but it cannot compensate for low pressure caused by worn bearings or too free a flow up the bypass pipe?
by Clifford Pope
Mon Sep 21, 2020 2:49 pm
Forum: Engine
Topic: Auxiliary oil feed to rockers
Replies: 12
Views: 820

Re: Auxiliary oil feed to rockers

I'm not sure that the oil pressure regulator literaly does that - surely it simply limits the maximum pressure - it can't increase oil pressure to compensate for increasing bearing tolerances? As those of us who in the old days of optimistically screwing the adjuster to try and compensate for worn b...
by Clifford Pope
Mon Sep 21, 2020 7:40 am
Forum: Engine
Topic: Auxiliary oil feed to rockers
Replies: 12
Views: 820

Re: Auxiliary oil feed to rockers

But it's not an extra little trickle. The supply to the valves is designed to be at a much lower pressure than in the main oil gallery, because the internal feed is taken from a main bearing where the crank has a flat on part of its surface. So the feed from this journal only pulses once per revolut...
by Clifford Pope
Mon Sep 21, 2020 7:24 am
Forum: Engine
Topic: Distributor fitting
Replies: 3
Views: 324

Re: Distributor fitting

I have noticed a tendency for the clamping system to be a bit marginal - everything has to absolutely undamaged, and the section of the distributor that the clamp engages is only just wide enough for the clamp - any distortion or burring in the clamp or the profile of the clamped part of the distrib...
by Clifford Pope
Wed Sep 02, 2020 7:12 am
Forum: Engine
Topic: Manifold Heater Pipe
Replies: 11
Views: 1072

Re: Manifold Heater Pipe

An exhaust heat exchange with a thermostatic flap diverter would give almost instant heat and then turn off when the job was done. Agree on para 1 above. Have any experience of doing the requirement for para 2 or perhaps the necessary parts? Kev [/quote] No, just observation of a fairly standard ar...
by Clifford Pope
Tue Aug 11, 2020 8:24 am
Forum: Engine
Topic: 'Orrible modern fuel
Replies: 5
Views: 853

Re: 'Orrible modern fuel

and it turns out some of the temperature increase in the fuel comes from valves left open when the engine stops and combustion chamber residual heat leaks back towards the inlet manifold and carbs. Suffice to say there is a lot more to this than I thought. That would be one advantage of having an e...
by Clifford Pope
Thu Aug 06, 2020 6:37 am
Forum: Engine
Topic: Mechanical Fuel Pump Differences
Replies: 4
Views: 672

Re: Mechanical Fuel Pump Differences

Aren't there two different kinds depending on camshaft - the lever engages with the camshaft in a different way, I thought?
Also gasket thickness alters the movement of the lever surely?