Barrel honing

Ask and give advice here
Post Reply
Harry Jones
Oil Pump
Posts: 263
Joined: Sat Nov 03, 2007 5:59 pm
Location: JHB
Been thanked: 2 times

Barrel honing

Post by Harry Jones » Mon Jun 24, 2019 9:27 pm

I have a set of barrels with no real damage on but do show their age/ mileage and would like to have them
cleaned up (honed out) and get new matching rings for the pistons
Can anyone recommend a good Engineering workshop that does this in JHB ?



Terry Phillips
Carburettor
Posts: 1796
Joined: Mon Jul 16, 2012 5:56 pm
What model do you have?: T3,58,60,61beetle
Location: Kempton Park
Has thanked: 153 times
Been thanked: 106 times
Flag: South Africa

Re: Barrel honing

Post by Terry Phillips » Tue Jun 25, 2019 1:58 pm

Just make sure you clean them properly,clean it with petrol then when you think they are clean get some Clean Green then see how much dirt comes out using a clean rag then coat the barrel with clean oil straight away.Bedding in the rings in must be done under load do not run idle to long otherwise the bores will glaze and it will use oil.Run in with a straight SAE 40 or what they recommend you use .My 2c worth.

Harry Jones
Oil Pump
Posts: 263
Joined: Sat Nov 03, 2007 5:59 pm
Location: JHB
Been thanked: 2 times

Re: Barrel honing

Post by Harry Jones » Tue Jun 25, 2019 6:22 pm

Hi there Terry,

Thank you very much for that solid advise and so true ... if you think its clean ...clean it again for good measure !
The barrels I have need to be machined/ honed out and I really need to find a reliable decent machine shop
that can sort these out

Terry Phillips
Carburettor
Posts: 1796
Joined: Mon Jul 16, 2012 5:56 pm
What model do you have?: T3,58,60,61beetle
Location: Kempton Park
Has thanked: 153 times
Been thanked: 106 times
Flag: South Africa

Re: Barrel honing

Post by Terry Phillips » Wed Jun 26, 2019 2:42 pm

Clean Green is magic clean the bores with what ever you want petrol or paraffin then use a clean green with a clean rag and you will be amazed how much grime is still left behind then oil the bores straight away as clean green is water based and will cause surface rust.

User avatar
retrovan
Donor
Donor
Posts: 7572
Joined: Mon Feb 07, 2011 8:51 pm
What model do you have?: 52T1,68FB,72Bay,75FL
Location: Eich! no, in Jefferys Bay
Has thanked: 175 times
Been thanked: 418 times
Flag: Netherlands
Contact:

Re: Barrel honing

Post by retrovan » Wed Jun 26, 2019 3:53 pm

my"Old Toppy" mechanic always said, that a barrel or engine block must be placed outside in the rain for two to four weeks after honing and before assembly so that the surface rust can pit the barrel to form oil pockets.

This will give 100 000 plus miles of service everytime.

Herman
1952 Split Beetle 1835cc (Azure Blue)
1968 Fastback 2Lt.type4( Red)
1972 Low Light Bay Panel Van 2Lt type 4(White)
1975 Fleetline Panel Van 1914cc (Aqua Blue/White)
2019 MeFusco Beetle Truck

User avatar
Tony Z
Donor
Donor
Posts: 14398
Joined: Wed Sep 14, 2005 8:33 am
What model do you have?: 2.3L 69; 1302; P/Van
Location: Klipheuwel (near Durbanville), Cape Town or working at sea
Has thanked: 140 times
Been thanked: 397 times
Flag: South Africa

Re: Barrel honing

Post by Tony Z » Wed Jun 26, 2019 6:23 pm

2-4 weeks in the rain? In CPT, thats about 7 years the way things are going...

honing it properly gives the correct cross hatch which holds the oil properly

Post Reply