New engine problems...

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aspira
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Re: New engine problems...

Post by aspira »

Pulled the valve cover and checked for movement of the rockers - all tight, no movement. I’m going to do the compression tests again, with full throttle and all the plugs out.

Runs quite with the belt off. Still a tiny wobble on the crankshaft pulley.

I shot a quick video with the cover off.

https://www.dropbox.com/scl/fi/9roiqz1w ... 9lt64&dl=0


1978 MGB Roadster
Converting to V8
GDCobra
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Joined: Sat Feb 04, 2017 9:21 am
Location: North West

Re: New engine problems...

Post by GDCobra »

It's a bit difficult to tell from the video but are the valves for cylinder 1 moving as much as the others?
Cylinder 5 seems to have more movement, I can't really tell for cylinder 3.
aspira
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Posts: 104
Joined: Sun Jan 25, 2015 9:05 pm
Location: London

Re: New engine problems...

Post by aspira »

Yes you're right not easy to see. #1 doesn't seem to move any slower. I was away this week, but I'll take another look over the weekend.
1978 MGB Roadster
Converting to V8
GDCobra
Knows His Stuff
Knows His Stuff
Posts: 434
Joined: Sat Feb 04, 2017 9:21 am
Location: North West

Re: New engine problems...

Post by GDCobra »

aspira wrote: Thu Aug 22, 2024 4:17 pm Yes you're right not easy to see. #1 doesn't seem to move any slower. I was away this week, but I'll take another look over the weekend.
Well I'm thinking more about how much than how fast, that's what will control how much charge you get into the cylinder.
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