Search found 125 matches

by Dave Wheatley
Fri Jul 24, 2020 10:16 am
Forum: MGB Technical
Topic: Relays
Replies: 12
Views: 525

Re: Relays

You need a 30A relay for headlights using 60/55 bulbs, so a relay for LED lighting (probably 5A) won't cope with the current. One 30A relay is ok to power both headlight units. Also if you use a thicker cable to run between the relay and as close as possible to the back of the headlight units, you ...
by Dave Wheatley
Sat Jul 18, 2020 5:52 pm
Forum: MGB Technical
Topic: Seat Rails Nut Stripped?
Replies: 27
Views: 1200

Re: Seat Rails Nut Stripped?

Could be 6mm bolts into the 1/4 unf nuts. They'll just about fit, but will be very sloppy. The thread in the nut might still be OK
by Dave Wheatley
Sat Jun 20, 2020 10:50 am
Forum: MGB Technical
Topic: Head Removed - How do I clean coolant passages in block?
Replies: 10
Views: 1179

Re: Head Removed - How do I clean coolant passages in block?

If you do go down the chemical route, let us know what you used and how you did it.
by Dave Wheatley
Sat Jun 20, 2020 9:22 am
Forum: MGB Technical
Topic: Head Removed - How do I clean coolant passages in block?
Replies: 10
Views: 1179

Re: Head Removed - How do I clean coolant passages in block?

True Ian.

Ideally of course, the stuff should be used before the head is removed. Bit late for the op.
by Dave Wheatley
Sat Jun 20, 2020 9:06 am
Forum: MGB Technical
Topic: Head Removed - How do I clean coolant passages in block?
Replies: 10
Views: 1179

Re: Head Removed - How do I clean coolant passages in block?

Brick cleaner has been suggested for many years to clear out cylinder head and block deposits. I've never tried or needed it, but here's some info. https://www.google.co.uk/search?source=hp&ei=YMLtXsCZK-zYgwejwLWYCw&q=brick+cleaner+for+cylinder+block&oq=brick+cleaner+for+cylinder+block&gs_lcp=CgZwc3...
by Dave Wheatley
Wed Jun 17, 2020 7:01 pm
Forum: MGB Technical
Topic: Overheating
Replies: 33
Views: 2920

Re: Overheating

Here's some pics.
WP_20190426_003.jpg
WP_20190426_002.jpg
WP_20190426_001.jpg
by Dave Wheatley
Wed Jun 17, 2020 6:07 pm
Forum: MGB Technical
Topic: Overheating
Replies: 33
Views: 2920

Re: Overheating

Hi Charles, Another senior moment here from me. My radiator core is 2 sections, one a bout 6 or 7 inches wide on the drivers side, and the other takes up the rest of the radiator towards the passenger side. About 1 32nd" gap in the fins between them. Now, I've misled you in that I assumed that the d...
by Dave Wheatley
Wed Jun 17, 2020 2:33 pm
Forum: MGB Technical
Topic: Overheating
Replies: 33
Views: 2920

Re: Overheating

Thanks Charles for the reply. Sorry, old age! Fan is on the water pump pulley. Thing is I don't know exactly what I should have. I have the bodged water pump mounted fan, and the small 10" electric fan which appears to work on the oil cooler part of the radiator. The main part of the radiator has no...
by Dave Wheatley
Wed Jun 17, 2020 1:07 pm
Forum: MGB Technical
Topic: Overheating
Replies: 33
Views: 2920

Re: Overheating

My fan comes on when the gauge shows just over half way. But talking about fans, a previous owner has fitted a non standard fan on the crankshaft pulley. It's about a foot away from the radiator, so I can't see it doing much good. The electric fan is bout 10" across, and is placed to the drivers sid...