[Vwdiesel] Is a 1.5 diesel head interchangeable with the1.6 diesel head?

[mark shepherd]

Isn't the main incompatability, the hydraulic heads v the mechanical shimmed 
heads, with the extra oil drain [hydro]

Mark
----- Original Message ----- 
From: "Tony and Lillie" <tonyandlillie1 at earthlink.net>
To: <LBaird119 at aol.com>; <vwdiesel at vwfans.com>
Sent: Sunday, February 14, 2010 6:41 PM
Subject: Re: [Vwdiesel] Is a 1.5 diesel head interchangeable with the1.6 
diesel head?


>
> Hmm, I'll have to look at mine. But, I didn't use any adapter and don't 
> leak any oil at all. The head cam off a stock 1.5 from a 79 rabbit, and 
> went onto my 1.6 82 Jetta. I did have to drill out the holes, but other 
> than that, nothing else to bolt it on. I'll look at it and take some pics 
> as far as the oil holes lining up. I know the hydraulic heads are 
> incompatible with the early ones, but I was under the impression that the 
> rest of them were the same.
>
> Tony
>
>
> -----Original Message-----
>>From: LBaird119 at aol.com
>>Sent: Feb 13, 2010 12:29 PM
>>To: vwdiesel at vwfans.com
>>Subject: Re: [Vwdiesel] Is a 1.5 diesel head interchangeable with the 1.6 
>>diesel head?
>>
>>In a message dated 2/13/2010 7:45:16 AM Pacific Standard Time,
>>tonyandlillie1 at earthlink.net writes:
>>
>>> It all depends on the head bolt size. The 1.5's use the smaller bolts, 
>>> as
>>> do the early 1.6's. Sometime they changed teh 1.6 to the larger bolts, I
>>> think it was in 82. I know for a fact my 1.6 1982 Jetta used the larger
>>> bolts, and the 1.5 head I had I needed to bore out to accept the bolts 
>>> from the
>>> Jetta. So, you need to know what size the holes are for those bolts. 
>>> Other
>>> than that, they should be compatible. Unless I'm missing something??
>>>
>>
>>  The oil return holes are different.  1.5 head has small return holes,
>>11mm bolt holes;  '81 head has large return holes, 11mm bolt holes;
>>'82 on has large return holes, 12mm bolt holes.
>>  What's his name (dieselparts.com?) sells a bushing to seal up the
>>larger hole (front, center) when putting a large hole head on a small
>>hole block or vise versa.  Otherwise you'll get a big oil leak.
>>    Loren
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>
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