H22 type s lost motion assembly help?

106pete · Post by **106pete** » Tue Mar 11, 2014 12:04 pm

Right I'm rebuilding the head and want to replace the lma's as they tick.

The engine currently has cylinder style lma's but I've found the newer style is more of a simple spring, is it a case of just swapping them over or do I have to use the old cylinder style. I can't seem to find many of these forsale and honda wanted £300 each hahahaha

Post by **Merlin** » Tue Mar 11, 2014 12:20 pm

http://www.ludegeneration.co.uk/prelude ... 10914.html ?

Post by **4thgenphil** » Tue Mar 11, 2014 12:23 pm

£300 each? Lol! I have the spri g type out of the a7, iirc you need a washer under the spring type as the are a touch shorter, paw me tioned it on puk maybe worth a search on there

106pete · Post by **106pete** » Tue Mar 11, 2014 12:31 pm

Yeah been reading about these longer and short ones, it seems this head required the long version as it's a older car. This is part number 14820-PCB-305

Sounds like these are way more expensive than the shorter version but I'll try tonight and get a price.

Post by **SPYDOR** » Tue Mar 11, 2014 1:35 pm

Are you not able to clean up the LMAs or is it a case that they get too worn and need replaced? I remember reading a couple of articles about this on somewhere like www.preludeonline.com - I think.

I know its something a lot of the older engines experience, so I will be keen to know how you end up sorting it. Probably gonna take a good look at mine when I hopefully check the valve clearances this year and see if there's anything I can do with the existing LMAs.

Post by **Drax** » Tue Mar 11, 2014 2:00 pm

106pete wrote:Right I'm rebuilding the head and want to replace the lma's as they tick.

The engine currently has cylinder style lma's but I've found the newer style is more of a simple spring, is it a case of just swapping them over or do I have to use the old cylinder style. I can't seem to find many of these forsale and honda wanted £300 each hahahaha

im about to fit some a8 ones from an a8 head I bought from Cebul to go into the a7 one, im pretty sure from research that your able to just clean up the LMA's unless their damaged or worn

106pete · Post by **106pete** » Tue Mar 11, 2014 2:05 pm

These old lma's don't seem to come apart and the piston has worn ridges into the cylinder causing it to stick as it's tilting to a slight angle as it's worn.

Tbh if there's a upgrade I WANT IT

Post by **Vtecmec** » Tue Mar 11, 2014 3:49 pm

They come apart, there are hidden internal circlips near the top.

I refurbed mine with degreaser and paint stripper to remove the internal gunge (which usually causes them to bind).

Post by **SPYDOR** » Tue Mar 11, 2014 5:46 pm

Cheers! That should be helpful for when I sort mine.

judderod · Post by **judderod** » Tue Mar 11, 2014 9:27 pm

Get them from the US. Cheapo. I used 14820-PCB-305 and they were a straight fit.