Archive for the ‘Trucks’ category

Toyota Hilux 3Y MLS Head Gasket

November 14, 2012

If you can find an MLS head gasket for your engine from Cometic or other provider you should buy it from them, but if you cannot find what you are looking for please ask us for a quotation. We can make MLS gaskets in quantities of one or more. Modifications are no problem, and we can even vary bore sizes or thicknesses  in the same order at no extra charge.

This customer sent us a head gasket for a Toyota Hilux 3Y and asked that we use that to make an MLS head gasket 1.5mm thick, which you can see below.

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1974 International Truck Carb Block and Gaskets

November 9, 2012

This customer contacted us because he needed insulated carb blocks and gaskets for his 1974 International Harvester truck and could not find them anywhere. He sent us images of the old part along with a scan backed by graph paper (see below). The blocks had to have metal inserts in the bolt holes, so we machined those and inserted them in the spacer material as shown.

One of several scans marked up with dimensions that were sent to us

Image of old spacers

Finished spacers and gaskets

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A.E.C. 4 85 H.P. Diesel Head Gasket 1934-42

April 25, 2010

A.E.C.  (Associated Equipment Company) was a renowned U.K. manufacturer of buses and lorries (trucks) that is no longer with us, having thrown in the towel in 1979. This engine was used in a variety of different models during the 1930s and 40s, such as the one below.

For purposes of obtaining a quotation this customer sent some images of the old gasket with L x W and thickness dimensions. Because the old gasket was so mangled he also sent a page from an old Payen (UK) gasket catalog.

A peculiar feature of this gasket were restricter plates that were riveted into a dimond shaped cuotout and featured a bushed hole. I will paste a close up image of one of those below:

The customer was happy with the quotation, so we went ahead and produced two of these for him. Because the old gasket was in such poor condition he also sent a paper tracing of the block so that we could locate bolts holes, etc. accurately.

After receiving the gaskets the customer sent this message, which I was quite happy to receive!

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Cummins Diesel Steel Sandwich Head Gasket

January 31, 2010

This project was a bit different than some of the steel sandwich gaskets we have made in the past. The customer informed me that inside the gasket there was a separate steel sheet in the cylinder area. If you look at the picture of the used gasket I will insert below, the extra steel sheet is under the part of the gasket that is lighter than the rest of the gasket.

Initially the customer sent this image, which we used to develop a quotation. He liked that, so he sent the old gasket to use for use in making 4 new gaskets, which you can see below. These have the extra steel sheet inside, and the copper inserts just like the OEM gasket.

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Leyland Truck Copper Sandwich Head Gasket

December 21, 2009

Leyland was a British manufacturer of trucks (lorries) and buses that is sadly no more.

A regular customer in the UK specializes in supplying gaskets for industrial marques that have long gone by the wayside, with spares difficult if not impossible to find. After sending an image of an old Leyland gasket along with dimensions and thickness for a quotation he was happy with the quoted price and sent a copy of a used gasket to use as a pattern.

This type of gasket is known as a copper sandwich gasket, also referred to as a copandas gasket in the UK, and consists of an inner material sandwiched by sheets of copper.  Originally these contained asbestos inner material, but asbestos is now banned in Europe, Australia, NZ, and most other countries, with the exception of the USA and a few others. Instead of asbestos we have been using a non-asbestos material very similar in appearance to the original white asbestos. This material is supplied by Interface Solutions (USA) and known as HT5050. Alternatively, and expecially for thicker gaskets, we use a metal mesh reinforced composite head gasket material from Interface Solutions. In this case the customer opted for the latter option.

This gasket was sealed around the outside, which means the copper is crimped over to seal the inner material. I am not sure if that really makes any difference, but some of the older gaskets came that way  and in order to make these as authentic as possible the customer wanted that. All the holes except for the bolt holes were bushed as well, so this was a fairly labor-intensive gasket to make. The results are below, with the old pattern gasket on top and one of the 3 replacement gaskets we made below:

If you recognize that Leyland gasket and need one let me know and I will put you in touch with my customer.

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Stainless Steel Exhaust Gaskets

December 19, 2009

I have a regular customer who is in the business of restoring obscure Japanese small trucks from the 1960s. Really small. To give you an idea of just how small they are, I have helpfully inserted an image of Gary Coleman next to a Cony truck (1 Coleman unit = 4 feet 8 inches):

The customer sent me a galvanized steel exhaust gasket, pictured in a scanned image below. Construction type is a steel sandwich, with an asbestos core.

According to my customer the problem with this gasket is that they rust out rather quickly, so I recommended going with stainless steel, and he agreed. Here is one of the 100 replacement gaskets we made:

If you are a Cony owner in need of gaskets or parts please visit the customer’s web site:

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